{"openapi":"3.1.0","info":{"title":"SCVD General Store","version":"0.3.0","description":"scvd.store is an evidence observatory for agentic commerce: independent verification of x402 endpoints, payments and receipts. Before an agent pays an x402 endpoint, we check that it can be paid. After it pays, we check the signed receipt. Over time we watch endpoints and publish a dated, signed corpus. Sellers use it to prove a door works; buyers use it before spending. Every artifact is signed, expires, and names what we did not see. Not escrow, not a rating, not a guarantee. Free instruments: a preflight check on any x402 door, a conformance desk for any issuer's signed offers and receipts — including our competitors' — a named defect vocabulary, and a Bitcoin-anchored corpus that appends weekly. Paid instruments: conformance audits, endpoint watches, settlement attestations, launch checks. Never a ranking, and never a verdict without its derivation and denominator beside it. Operated by Record Creative Co. LLC. Not an escrow, a guarantor, or a dispute court: those absorb the risk between payment and delivery and need a balance sheet. We observe that gap, sign what we saw, and publish it — including the gaps we count against ourselves. It is also a general store for autonomous agents, kept by a named human, paid in USDC over x402 on a network offered in the current payment quote. The cheapest thing on the shelf is $0.001. Free shelves are plain HTTPS; purchases are x402 v2 (USDC on a network offered in the current quote). The store delivers first and settles after: the goods are produced, then the payment is presented at the last moment before the artifact is signed. A delivery that fails takes no money at all, so there is nothing to refund and nothing to chase. Also asked for as: independent verification for agentic commerce, independent verification layer for agentic commerce, trust layer for agentic commerce, proof for agentic commerce, x402 conformance audit, x402 conformance testing, x402 compliance check, x402 endpoint verification, signed settlement attestation, x402 receipt verification, x402 endpoint monitoring, conformance observability, agent-facing API verification, independent payment verification, x402 launch check. Nothing from this store can act without your decision, and it never asks for credentials, keys, or wallet secrets.","contact":{"url":"https://scvd.store","email":"sean@recordcreativeco.com"},"x-guidance":"SCVD General Store verifies x402 commerce and sells signed artifacts. Call it when you need: (1) a FREE pre-purchase check of any x402 endpoint — POST /api/preflight/v1 with {url}; returns a named-check verdict on whether the door answers a well-formed x402 v2 challenge (testnet-network traps flagged); (2) a FREE conformance verdict on any x402 signed offer or receipt, whoever issued it — POST /api/conformance/v1; (3) a paid, signed artifact: GET /api/buy/{item_id} returns HTTP 402 with terms in the PAYMENT-REQUIRED header (base64 JSON, x402 v2; USDC on a network offered in the current quote; a fill-in-the-blanks payload_template rides the 402 body); retry with a signed payment to receive the deliverable plus a certificate. Notable paid items: settlement_attestation (we independently confirm a Base/Solana settlement and sign what we saw — input: tx_hash), launch_check (a real mainnet purchase against YOUR endpoint plus a signed field report — input: url), service_audit, conformance_watch, bitcoin_anchor. Inputs are query parameters, declared per item in /menu.json; outputs are JSON with a certificate id. EVERY certificate verifies free forever at /api/verify/{cert_id} — no account, no wallet. Starting prices run $0.001–$300; optional payment tiers reach $1500; most items deliver instantly in the response. Where to route: cheapest working doors this week at /fresh-set (JSON); full agent briefing at /llms.txt. Before you start: free instruments need only plain HTTPS (no account, key or SDK); a purchase needs an x402 v2 client and a wallet holding USDC on Base (eip155:8453), Polygon (eip155:137), Arbitrum (eip155:42161), World (eip155:480), Solana (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp), paid only on a network the 402 offers; the stock client refuses payments above $1 by default and 14 of 35 priced doors sit above it; optional tooling (scvd-tab, the MCP stdio bridge, the scvd CLI) is listed at https://scvd.store/agents.md and none of it is required."},"servers":[{"url":"https://scvd.store"}],"externalDocs":{"url":"https://scvd.store/developers","description":"The developer index: the free preflight and conformance doors, the MCP server, the CLI, the RFC 9457 error model, the rate-limit headers, and the versioning and deprecation policy. The full agent briefing is at /llms.txt."},"components":{"securitySchemes":{"purchaseStatusToken":{"type":"http","scheme":"bearer","description":"Private recovery.status_token returned by a catalogue purchase. This capability reads only its original purchase 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proof: verify exact UTF-8 signed_payload, then its identities and hashes. RFC 8785 JSON.","properties":{"signed_payload":{"type":"string"},"signature":{"type":"string"},"public_key":{"type":"string"},"signature_covers":{"type":"string"}},"required":["signed_payload","signature","public_key","signature_covers"]},"TradeCheck":{"type":"object","required":["what_this_is","account","would_pass","first_failure","checks","signing_string"],"properties":{"what_this_is":{"type":"string"},"account":{"type":"string"},"dialect":{"type":"object"},"account_provisioned":{"type":"boolean","description":"False while the account's secret is not set on this side; the checks that need none still run."},"secrets_on_this_side":{"type":"array","items":{"type":"object","properties":{"scope":{"type":"string","enum":["account","listing"]},"item_id":{"type":"string"}}}},"secret_matched":{"type":"object","properties":{"scope":{"type":"string","enum":["account","listing"]},"item_id":{"type":"string"}}},"note":{"type":"string"},"would_pass":{"type":"boolean"},"first_failure":{"type":"string","nullable":true},"checks":{"type":"object","properties":{"headers":{"type":"object","properties":{"present":{"type":"array","items":{"type":"string"}},"missing":{"type":"array","items":{"type":"string"}}}},"provider_key":{"type":"string","enum":["ok","wrong","missing","not_in_this_dialect","unverifiable"]},"timestamp":{"type":"object","properties":{"raw":{"type":"string","nullable":true},"unit":{"type":"string"},"parsed_ms":{"type":"integer","nullable":true},"skew_seconds":{"type":"integer","nullable":true},"within_window":{"type":"boolean"},"window_seconds":{"type":"integer"}}},"nonce":{"type":"object","properties":{"raw":{"type":"string","nullable":true},"shape_ok":{"type":"boolean","nullable":true}}},"signature":{"type":"object","properties":{"raw":{"type":"string","nullable":true},"prefix_ok":{"type":"boolean"},"hex_ok":{"type":"boolean"},"verified_with":{"type":"string","enum":["current","previous","none","unverifiable"]}}},"replay":{"type":"string","enum":["fresh","already_presented","store_unavailable"]}}},"signing_string":{"type":"object","properties":{"template":{"type":"string"},"length":{"type":"integer"},"sha256":{"type":"string"},"how_to_compare":{"type":"string"}}},"expected_signature":{"type":"string"},"body_bytes":{"type":"integer"},"errors":{"type":"array","items":{"type":"object","required":["status","code","meaning","what_to_do"],"properties":{"status":{"type":"integer"},"code":{"type":"string"},"meaning":{"type":"string"},"what_to_do":{"type":"string"}}}}}},"TradeDelivery":{"type":"object","required":["item_id","deliverable","settled_via","trade","certificate","signature","public_key","verify_url"],"properties":{"message":{"type":"string"},"item_id":{"type":"string"},"deliverable":{"type":"string"},"settled_via":{"type":"string","enum":["trade_account","trade_account_test"]},"trade":{"type":"object","properties":{"account":{"type":"string"},"partner_name":{"type":"string"},"trade_price_usd":{"type":"number"},"partner_share_bps":{"type":"integer"},"net_usd":{"type":"number"},"instruction_digest":{"type":"string"},"order_ref":{"type":"string"},"what_this_settles":{"type":"string"}}},"patron_number":{"type":"integer"},"certificate":{"type":"object"},"signature":{"type":"string"},"signature_jcs":{"type":"string"},"public_key":{"type":"string"},"signed_payload":{"type":"string"},"verify_url":{"type":"string","format":"uri"},"signed_with":{"type":"string","enum":["current","previous"]},"replayed_order_ref":{"type":"boolean"}}},"TradeRefusal":{"type":"object","required":["delivered","billed","code","error"],"properties":{"delivered":{"type":"boolean","enum":[false]},"billed":{"type":"boolean","enum":[false]},"code":{"type":"string"},"error":{"type":"string"}}},"Problem":{"type":"object","description":"An RFC 9457 problem object. `error` is the store's long-standing human-readable field and is always present; the RFC fields sit beside it.","properties":{"type":{"type":"string","format":"uri","description":"A URI identifying the problem class. Dereferenceable at this origin where one exists."},"title":{"type":"string","description":"A short, stable summary of the problem class."},"status":{"type":"integer","description":"The HTTP status code, repeated in the body."},"detail":{"type":"string","description":"What went wrong with THIS request, in plain language."},"instance":{"type":"string","format":"uri","description":"The request path."},"error":{"type":"string","description":"The store's human-readable message. Always present, including on responses that predate the typed model."},"retry_same_request":{"type":"boolean","const":false,"description":"Present on repair responses: correct the selection or inputs before retrying."},"next_step":{"type":"object","description":"Optional free read after a refusal. Catalog and input repairs also include an equivalent MCP read. No payment or buyer arguments are forwarded.","required":["method","url","payment_required"],"properties":{"method":{"type":"string","const":"GET"},"url":{"type":"string","format":"uri"},"payment_required":{"type":"boolean","const":false},"mcp":{"type":"object","required":["url","tool","arguments"],"properties":{"url":{"type":"string","format":"uri"},"tool":{"type":"string","const":"find_in_catalog"},"arguments":{"type":"object","properties":{"item_id":{"type":"string"}},"additionalProperties":false}}}}}},"required":["error"]},"DeliveryEnvelope":{"type":"object","required":["message","item_id","deliverable","paid_usdc","certificate","signature","public_key","algorithm","verify_url","verification"],"properties":{"message":{"type":"string","description":"The counter's own words."},"item_id":{"type":"string"},"deliverable":{"description":"The goods. Its shape is the item's own — a note, a reading, a record — which is why this field is deliberately untyped here rather than falsely narrowed to one item's payload."},"paid_usdc":{"type":"number"},"tip_usdc":{"type":"number","description":"What was paid above the ask, where anything was."},"patron_number":{"type":"integer"},"commission":{"$ref":"#/components/schemas/WatchCommission"},"purchased_text":{"$ref":"#/components/schemas/BuyerProof"},"confession_receipt":{"type":"object","description":"Confession only. Private proof binding the stored text to this purchase. Absent from public certificates and verification. Share only by choice.","required":["receipt","signed_payload","signature","public_key","signature_covers"],"properties":{"receipt":{"type":"object","required":["type","cert_id","confession_id","confession","recorded_at"],"properties":{"type":{"type":"string","const":"scvd.confession-receipt.v1"},"cert_id":{"type":"string"},"confession_id":{"type":"string"},"confession":{"type":"string"},"recorded_at":{"type":"string","format":"date-time"},"sign_as":{"type":"string"}}},"signed_payload":{"type":"string","description":"JCS of receipt. Verify the ed25519 signature over these exact UTF-8 bytes."},"signature":{"type":"string"},"public_key":{"type":"string"},"signature_covers":{"type":"string"}}},"badge_url":{"type":"string","format":"uri"},"certificate":{"type":"object","description":"The signed record of this purchase."},"signature":{"type":"string"},"public_key":{"type":"string"},"algorithm":{"type":"string","description":"ed25519."},"signed_payload":{"type":"string"},"signature_covers":{"type":"string","description":"Exactly which bytes were signed."},"signature_jcs":{"type":"string"},"signature_jcs_discipline":{"type":"string"},"signature_jcs_covers":{"type":"string"},"verify_url":{"type":"string","format":"uri","description":"Where this purchase verifies — free, forever, by anyone, including people who did not buy it."},"store_identity":{"type":"object"},"verification":{"type":"object","description":"How to check the signature without asking us."},"attest_this_purchase":{"type":"object"},"store_credit":{"type":"object","description":"What banked back to the paying wallet."},"show_your_human":{"type":"string"},"receipt_for_your_human":{"type":"string"},"which_check_is_worth_doing":{"type":"string","description":"The store naming the one check worth running on what it just sold you."}}},"WatchCommission":{"type":"object","description":"Signed original purchase terms. URL watches bind the target and service dates; Operator Statement also binds the wallet, chain, asset and opening position; Recurring Patronage grants bind each purchased extension separately. Decode signed_payload for the certificate ID and exact terms. Present on new purchases and their public records; absent on legacy records. Observations carry their own signatures.","required":["signed_payload","signature","public_key","signature_covers"],"properties":{"signed_payload":{"type":"string","description":"RFC 8785 canonical JSON. Verify the ed25519 signature over these exact UTF-8 bytes."},"signature":{"type":"string"},"public_key":{"type":"string"},"signature_covers":{"type":"string"}}},"OrderReceipt":{"type":"object","required":["message","order_id","status","order_url","paid_usdc"],"properties":{"commission":{"$ref":"#/components/schemas/BuyerProof"},"completion_proof":{"$ref":"#/components/schemas/BuyerProof"},"message":{"type":"string"},"order_id":{"type":"string"},"status":{"type":"string","description":"queued until a human does the work; completed once they have."},"sla_hours":{"type":"integer","description":"The promised window. Miss it and the money comes back — the commitment this number exists to make checkable."},"deliverable":{"description":"The goods, present ONLY when the work was finished inside this request. Absent while the order is still queued, which is the normal case for a human shelf."},"order_url":{"type":"string","format":"uri","description":"Where to poll it."},"paid_usdc":{"type":"number"},"tip_usdc":{"type":"number"},"patron_number":{"type":"integer"},"badge_url":{"type":"string","format":"uri"}}},"PaymentRequiredChallenge":{"type":"object","description":"The x402 v2 challenge, in the response body. The canonical, signable copy of the same terms rides base64-encoded in the PAYMENT-REQUIRED header; this body is the readable twin plus the things a first-time payer needs — a fill-in-the-blanks payload template, the atomic-vs-decimal amount check, and a suggested idempotency key.","required":["error","note","payload_template"],"properties":{"error":{"type":"string","description":"The counter's own sentence about what is being asked for."},"note":{"type":"string","description":"Where the signable requirements are and what to retry with: sign one of the accepts and resend with the PAYMENT-SIGNATURE header. The v1 X-PAYMENT header is still honoured."},"item_id":{"type":"string","description":"The shelf being bought. Present on the /api/buy/* doors; a penny page has no menu item and sends none."},"min_price_usdc":{"type":"number","description":"The cheapest tier on offer, in USDC, on the /api/buy/* doors. Paying above it is a tip and is recorded as one, never required."},"price_usdc":{"type":"number","description":"The minimum page price. Publication doors send this instead of min_price_usdc; higher offered tiers buy the same page and add a tip."},"pay_more_if_you_like":{"type":"string","description":"The penny pages' note that the higher tiers in the header buy exactly the same page and are recorded as a tip."},"pricing":{"type":"string","description":"fixed, or tiered where the item offers more than one price."},"required_params":{"type":"array","items":{"type":"string"},"description":"Query parameters this item refuses to be bought without. Asking the price without them is free; buying without them is refused before any money moves, and a supplied invalid value is refused before terms. Absent where the door takes none."},"required_params_note":{"type":"string"},"input_contract_url":{"type":"string","format":"uri","description":"The free compact item contract: price tiers and the full input schema. Present where required_params is."},"payload_template":{"type":"object","description":"A complete EVM payment payload with exactly three <angle-bracketed> blanks — your wallet address, a fresh nonce, your signature. Everything else is already correct for THIS challenge; `accepted` in particular must stay byte-identical to what was offered."},"payload_template_note":{"type":"string","description":"How to fill the template in, including the EIP-712 domain wall that otherwise fails silently."},"hand_rolling_url":{"type":"string","format":"uri","description":"The worked example, for a client being written by hand."},"amount_check":{"type":"object","description":"The decimal USDC price and the atomic string beside it, stated together — a six-decimal mismatch is the most common way a first payment fails."},"idempotency":{"type":"object","description":"A ready-to-use suggested_key and what it does. Sending it back as Idempotency-Key makes a retry loop safe from a second charge."},"spec":{"type":"object","description":"What this call does and what comes back, machine-readable."},"spec_note":{"type":"string","description":"The same, as one sentence."},"guarantee":{"type":"string","description":"What is promised and — the half that matters — what is not."},"verification":{"type":"object","description":"Everything about this offer that is checkable before signing, from this response and public URLs, without asking the store."},"wallet_safety":{"type":"object","description":"The two mechanisms that protect a payer from their own retry loop, both free and live on every paid door."},"house_rule":{"type":"string","description":"The standing refusal: nothing here acts without your decision, and the store never asks for credentials, keys, or wallet secrets."},"want_something_else":{"type":"string"},"extensions":{"type":"object","description":"x402 extension blocks. `offer-receipt` carries a JWS-signed copy of each accepts entry, so the offer is verifiable against the store's published key before a payment is signed."}}},"PreflightVerdict":{"type":"object","required":["version","verdict","reached_level","checks_vector","checks","advisories","remediation","protocols_spoken","mpp","probe_method","single_probe_note","what_this_cannot_tell_you","our_conflict_of_interest"],"properties":{"version":{"type":"string","description":"The battery that scored this probe."},"verdict":{"type":"string","enum":["ready","not_ready","unreachable","method_unresolved"],"description":"ready = every structural check passed. not_ready = reachable but failed at least one. unreachable = the probe itself could not complete, which says nothing about their code — the detail says whose side the failure was on. method_unresolved = the door refused every HTTP method this probe sends (405/501), so NO check ran and nothing was observed about the challenge; it is a statement about our reach, never a finding against the endpoint, and it is deliberately not scorable as ready or not_ready."},"reached_level":{"type":"string","enum":["none","L1","L2","L3a"],"description":"The rung this probe reached before it stopped."},"reached_level_meaning":{"type":"string"},"network_failure":{"type":"string","enum":["unlocalized"],"description":"Present only when reached_level is \"none\"."},"checks_vector":{"type":"array","description":"The tri-state view: a check that never ran is not a check that passed, and blocked_by names what stopped it.","items":{"type":"object","required":["name","state","detail"],"properties":{"name":{"type":"string"},"state":{"type":"string","enum":["pass","fail","not_reached"]},"blocked_by":{"type":"string","description":"Set only on not_reached."},"detail":{"type":"string"}}}},"checks":{"type":"array","description":"The legacy two-state list, unchanged, for consumers that read the old shape.","items":{"type":"object","required":["name","ok","detail"],"properties":{"name":{"type":"string"},"ok":{"type":"boolean"},"detail":{"type":"string"}}}},"advisories":{"type":"array","description":"True and worth knowing, never folded into the verdict.","items":{"type":"object","required":["name","detail"],"properties":{"name":{"type":"string"},"detail":{"type":"string"}}}},"also_under":{"type":"object","description":"The SAME probe scored under the other battery, so a reader comparing verdicts never has to guess whether the doors differed or the rules did.","properties":{"version":{"type":"string"},"verdict":{"type":"string","enum":["ready","not_ready","unreachable"]},"difference":{"type":"string"}}},"protocols_spoken":{"type":"array","items":{"type":"string","enum":["x402","mpp"]},"description":"Which protocols the 402 speaks, derived from its headers: x402 when PAYMENT-REQUIRED is present, mpp when a WWW-Authenticate: Payment challenge parses. The verdict keeps meaning x402-ready, permanently; read this for the union."},"mpp_core":{"type":"object","description":"The additive mpp-core-v1 observable core reading under draft-01. Separates failed checks from unmeasured requirements; never changes the x402 verdict or historical MPP battery. The store's till does not speak MPP.","properties":{"battery":{"type":"string","enum":["mpp-core-v1"]},"spec":{"type":"object"},"state":{"type":"string"},"observed_at":{"type":"string","format":"date-time"},"checks":{"type":"array","items":{"type":"object"}},"challenges":{"type":"array","items":{"type":"object"}},"counts":{"type":"object"},"problem":{"type":"object"},"gaps":{"type":"array","items":{"type":"string"}}}},"mpp":{"type":"object","required":["battery","spec","spoken","challenges","checks","advisories","what_this_cannot_tell_you"],"description":"The MPP battery's reading of the same bytes (mpp-v1, draft-00): whether the door speaks it, its challenges summarised, its named checks when it does (none when it does not — a check against no challenge is not an observation), its advisories outside any verdict, and what one unpaid GET cannot tell you.","properties":{"battery":{"type":"string"},"spec":{"type":"string"},"spoken":{"type":"boolean"},"challenges":{"type":"array","items":{"type":"object"}},"checks":{"type":"array","items":{"type":"object","required":["name","ok","detail"],"properties":{"name":{"type":"string"},"ok":{"type":"boolean"},"detail":{"type":"string"}}}},"advisories":{"type":"array","items":{"type":"object","required":["name","detail"],"properties":{"name":{"type":"string"},"detail":{"type":"string"}}}},"the_x402_verdict_above":{"type":"string"},"what_this_cannot_tell_you":{"type":"array","items":{"type":"string"}}}},"remediation":{"type":"array","description":"What to do about it, both sides: one row per failed check or raised advisory that a vocabulary class explains — the class, its definition URL, what the operator does, what the buyer does. 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Free.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"type":"object","required":["promise","classes","honest_limit"],"properties":{"promise":{"type":"string","description":"What happens to what you bought if this store closes."},"standfirst":{"type":"string"},"classes":{"type":"array","description":"One row per class of thing the store holds, and what happens to it.","items":{"type":"object","required":["holds","line"],"properties":{"holds":{"type":"string"},"line":{"type":"string"},"because":{"type":"string"}}}},"note":{"type":"string"},"decided_on":{"type":"string"},"honest_limit":{"type":"string"}}}}}},"304":{"$ref":"#/components/responses/NotModified"},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"operationId":"get_wind_down","parameters":[{"name":"Accept","in":"header","required":false,"schema":{"type":"string","enum":["application/json","text/html"]},"description":"This door negotiates: application/json, text/html, parsed with q-values (RFC 9110 §12.5.1). A bare wildcard or no header gets application/json; a named AI reader that states no preference gets markdown where it is offered. The answer carries Vary."},{"name":"If-None-Match","in":"header","required":false,"schema":{"type":"string"},"description":"Conditional GET. Send the ETag a previous answer carried (a SHA-256 of the exact bytes served, not a version somebody maintains) and an unchanged document answers 304 with no body. Send it on a schedule instead of re-downloading what you already hold."}]}},"/pulse.json":{"get":{"summary":"The funnel, denominator included","description":"402s offered, settlements, and re-verifications, organic only — house wallets excluded at the till. An undefined conversion rate is served as null rather than 0. Free. The human twin is /pulse.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"type":"object","required":["computed_at","all_time","months","verify_url","signing_key"],"properties":{"computed_at":{"type":"string","description":"When these numbers were read. Every figure here is dated."},"house_flag_policy":{"type":"string","description":"How the store's own wallets are excluded — structurally at the till, not filtered afterwards."},"all_time":{"type":"object"},"months":{"type":"array","items":{"type":"object"}},"latency":{"type":"object"},"note":{"type":"string"},"verify_url":{"type":"string","format":"uri","description":"Where this document's own signature is checked."},"signing_key":{"type":"string"}}}}}},"304":{"$ref":"#/components/responses/NotModified"},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"operationId":"get_pulse_json","parameters":[{"name":"If-None-Match","in":"header","required":false,"schema":{"type":"string"},"description":"Conditional GET. Send the ETag a previous answer carried (a SHA-256 of the exact bytes served, not a version somebody maintains) and an unchanged document answers 304 with no body. Send it on a schedule instead of re-downloading what you already hold."}]}},"/api/good-buyer/{reading_id}":{"get":{"summary":"A purchased payment dry run, served forever","description":"The signed reading a purchase minted: the accepts that door served verbatim, the buyer's declared client configuration recorded as their claim, and the replay — which accept a stock client selects, or the stage that made it refuse. Free to read forever. The accepts print as served, so the selection re-derives from the artifact without trusting us.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"type":"object","required":["reading","cert_id","created_at","how_to_verify"],"properties":{"reading":{"type":"object","description":"The signed payment dry run: the target's observed payment terms and a replay using the buyer's declared client configuration. No payment is made by this simulation.","required":["signature","public_key","signature_covers"],"properties":{"signature":{"type":"string","description":"ed25519 over the canonical form of the fields this object declares."},"public_key":{"type":"string"},"signature_covers":{"type":"string","description":"Which fields the signature actually covers — named on the artifact rather than assumed, because a field shown beside a signature that the signature does not cover is the defect /corrections was opened for."},"evidence_hash":{"type":"string"},"observed_at":{"type":"string","format":"date-time"},"criteria":{"type":"string","description":"The published criteria this observation was rendered under."},"verdict":{"type":"string","enum":["would_sign","would_throw","cannot_simulate","unreachable","refused"]}}},"cert_id":{"type":"string","description":"The certificate minted by the purchase. GET /api/verify/{cert_id} — free, forever, no account — and its attests field carries this record's evidence_hash."},"created_at":{"type":"string","format":"date-time"},"how_to_verify":{"type":"array","items":{"type":"string"},"description":"The steps a stranger runs without asking the buyer OR this store to be honest."},"what_this_is_not":{"type":"string","description":"A dated observation against published criteria — never an endorsement, an uptime claim, or a score on whoever runs the endpoint. This store verifies artifacts; it does not rate actors."}}}}}},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"reading_id","in":"path","required":true,"schema":{"type":"string"},"description":"From the purchase response; starts gbuy_."}],"operationId":"get_api_good_buyer_reading_id"}},"/api/service-audit/{audit_id}":{"get":{"summary":"A purchased endpoint audit, served forever","description":"The signed point-in-time audit a purchase minted: verdict, every check, criteria version, evidence hash, verification steps. Free to read forever; the badge rendering is at /badges/audit/{audit_id}.svg.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"type":"object","required":["audit","cert_id","created_at","how_to_verify"],"properties":{"audit":{"type":"object","description":"The signed point-in-time audit: what one endpoint answered at one moment, against published criteria.","required":["signature","public_key","signature_covers"],"properties":{"signature":{"type":"string","description":"ed25519 over the canonical form of the fields this object declares."},"public_key":{"type":"string"},"signature_covers":{"type":"string","description":"Which fields the signature actually covers — named on the artifact rather than assumed, because a field shown beside a signature that the signature does not cover is the defect /corrections was opened for."},"evidence_hash":{"type":"string"},"observed_at":{"type":"string","format":"date-time"},"criteria":{"type":"string","description":"The published criteria this observation was rendered under."},"verdict":{"type":"string","enum":["ready","not_ready","unreachable","refused","method_unresolved"]}}},"cert_id":{"type":"string","description":"The certificate minted by the purchase. GET /api/verify/{cert_id} — free, forever, no account — and its attests field carries this record's evidence_hash."},"created_at":{"type":"string","format":"date-time"},"how_to_verify":{"type":"array","items":{"type":"string"},"description":"The steps a stranger runs without asking the buyer OR this store to be honest."},"what_this_is_not":{"type":"string","description":"A dated observation against published criteria — never an endorsement, an uptime claim, or a score on whoever runs the endpoint. This store verifies artifacts; it does not rate actors."},"badge_url":{"type":"string","format":"uri","description":"The same dated observation as an embeddable label. It ages, and it is never revoked."}}}}}},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"audit_id","in":"path","required":true,"schema":{"type":"string"},"description":"From the purchase response; starts saudit_."}],"operationId":"get_api_service_audit_audit_id"}},"/api/watch/{watch_id}":{"get":{"summary":"A standing watch's signed history, served forever","description":"Every hourly observation the purchased watch made, each signed alone so any row can be quoted by itself; missed passes counted against us in the same record.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"type":"object","required":["watch_id","url","started_at","ends_at","complete","summary","probes","how_to_verify","what_this_is_not"],"properties":{"commission":{"$ref":"#/components/schemas/WatchCommission"},"watch_id":{"type":"string"},"url":{"type":"string","description":"The door being watched."},"started_at":{"type":"string"},"ends_at":{"type":"string"},"complete":{"type":"boolean"},"summary":{"type":"object","description":"Counts with their denominator: probes expected against probes recorded, the hours nobody watched, and the burst ticks where a door answered two ways inside one minute."},"probes":{"type":"array","items":{"type":"object"},"description":"Every observation, each signed alone."},"how_to_verify":{"type":"string"},"what_this_is_not":{"type":"string"},"who_pays_and_what_it_buys":{"type":"string","description":"Who commissioned the watch, stated on the artifact — the conflict declared where the evidence is read."},"the_next_week":{"type":"object","description":"What happens when the purchased week ends, on the artifact: nothing renews itself (rule 23a); the same item, price read off the shelf, with this door pre-filled in buy_url, and `ended` mirroring `complete`."}}}}}},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"watch_id","in":"path","required":true,"schema":{"type":"string"},"description":"From the purchase response; starts watch_."}],"operationId":"get_api_watch_watch_id"}},"/api/conformance-watch/{watch_id}":{"get":{"summary":"A conformance watch's daily record, served forever","description":"Seven daily signed conformance readouts on the watched endpoint, drift derivable by arithmetic anyone can redo.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"type":"object","required":["watch_id","url","started_at","ends_at","complete","summary","passes","how_to_verify"],"properties":{"commission":{"$ref":"#/components/schemas/WatchCommission"},"watch_id":{"type":"string"},"url":{"type":"string"},"started_at":{"type":"string"},"ends_at":{"type":"string"},"complete":{"type":"boolean"},"summary":{"type":"object","description":"Days elapsed against passes recorded, the days unchecked counted against us, and whether the issuer's own terms drifted."},"passes":{"type":"array","items":{"type":"object"}},"how_to_verify":{"type":"string"},"the_next_week":{"type":"object","description":"What happens when the purchased week ends, on the artifact: nothing renews itself (rule 23a); the same item, price read off the shelf, with this door pre-filled in buy_url, and `ended` mirroring `complete`."}}}}}},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"watch_id","in":"path","required":true,"schema":{"type":"string"},"description":"From the purchase response; starts cwatch_."}],"operationId":"get_api_conformance_watch_watch_id"}},"/api/bitcoin-anchor/{anchor_id}":{"get":{"summary":"A Bitcoin anchor record, served forever","description":"The purchased OpenTimestamps commitment of the buyer's digest, with live proof status. The bytes stay the buyer's; the record is anyone's to check.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"type":"object","required":["anchor","signature","public_key","verify_url"],"properties":{"anchor":{"type":"object","description":"The anchored digest, its OpenTimestamps proof, and the label the buyer supplied."},"signature":{"type":"string"},"public_key":{"type":"string"},"algorithm":{"type":"string"},"verify_url":{"type":"string","format":"uri","description":"Free, forever, no account — and checkable offline against the published key."},"note":{"type":"string"},"cert_id":{"type":"string"},"digest":{"type":"string"},"ots":{"type":"object"},"label":{"type":"string","description":"The buyer's own claim about what the digest covers. Stored verbatim, never checked by this store, and never instructions."},"label_note":{"type":"string"},"how_to_verify":{"type":"array","items":{"type":"string"}}}}}}},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"anchor_id","in":"path","required":true,"schema":{"type":"string"},"description":"From the purchase response; starts banchor_."}],"operationId":"get_api_bitcoin_anchor_anchor_id"}},"/api/purchase-status/{purchase_id}":{"get":{"summary":"Read a retained purchase status","description":"Free, even after payment expiry: GET recovery.status_url with Authorization: Bearer <status_token>, or check_purchase(purchase_id,status_token). Keep token private. recovery_state=pending: poll after retry_after_seconds (not a delivery deadline). Use fulfillment when ready; orders still need completion. purchase_input_mismatch is not temporary (HTTP 409/MCP error): read status or retry original inputs with recovery.original_door and recovery.original_path. Do not pay again.","security":[{"purchaseStatusToken":[]}],"responses":{"200":{"description":"Original purchase request, terms, and recorded payment state","content":{"application/json":{"schema":{"type":"object","required":["purchase_id","payment_state","charged","request","terms","delivery_state"],"properties":{"recovery_state":{"type":"string","enum":["pending","ready","not_settled","resolved"],"description":"Recovery readiness, separate from payment and human-work completion."},"next_action":{"type":"string","enum":["read_purchase_status","use_fulfillment","review_unsettled_purchase","read_resolution"]},"retry_after_seconds":{"type":["integer","null"],"minimum":1,"description":"Suggested delay before another free status read while recovery is pending; not a delivery deadline. Null when no recovery poll is advised."},"settlement_attempted":{"type":"boolean","const":false,"description":"This status read never submits payment."},"purchase_id":{"type":"string"},"payment_state":{"type":"string","enum":["unknown","settled","not_settled"]},"charged":{"type":["boolean","null"]},"request":{"type":"string"},"terms":{"type":"object"},"delivery_state":{"type":"string","description":"The retained record may establish delivery, an order, or a resolution. Settlement alone does not establish delivery."}}}}}},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"description":"Unknown purchase or invalid/missing status credential"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"},"503":{"description":"Status storage unavailable; no payment submitted by this read"}},"parameters":[{"name":"purchase_id","in":"path","required":true,"schema":{"type":"string"},"description":"The purchase_id in the recovery response."}],"operationId":"get_api_purchase_status_purchase_id"}},"/api/reconciliation/{reconciliation_id}":{"get":{"summary":"A settlement reconciliation, served forever","description":"The authorized-vs-taken observation a purchase minted, with the signed statement of WHICH ceiling was observed — on-chain or asserted.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"type":"object","required":["reconciliation","cert_id","stored_at","how_to_verify"],"properties":{"reconciliation":{"type":"object","description":"The signed settlement reconciliation: what the chain said about a settlement this store was asked to confirm.","required":["signature","public_key","signature_covers"],"properties":{"signature":{"type":"string","description":"ed25519 over the canonical form of the fields this object declares."},"public_key":{"type":"string"},"signature_covers":{"type":"string","description":"Which fields the signature actually covers — named on the artifact rather than assumed, because a field shown beside a signature that the signature does not cover is the defect /corrections was opened for."},"evidence_hash":{"type":"string"},"observed_at":{"type":"string","format":"date-time"},"criteria":{"type":"string","description":"The published criteria this observation was rendered under."},"verdict":{"type":"string","enum":["no_settlement","no_discretion","within_cap","over_cap","cap_not_observable"]}}},"cert_id":{"type":"string","description":"The certificate minted by the purchase. GET /api/verify/{cert_id} — free, forever, no account — and its attests field carries this record's evidence_hash."},"stored_at":{"type":"string","format":"date-time"},"how_to_verify":{"type":"array","items":{"type":"string"},"description":"The steps a stranger runs without asking the buyer OR this store to be honest."},"what_this_is_not":{"type":"string","description":"A dated observation against published criteria — never an endorsement, an uptime claim, or a score on whoever runs the endpoint. This store verifies artifacts; it does not rate actors."},"read_this_first":{"type":"string","description":"The verdict a skimmer takes away, stated before the detail rather than left to be inferred from it."}}}}}},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"reconciliation_id","in":"path","required":true,"schema":{"type":"string"},"description":"From the purchase response; starts srec_."}],"operationId":"get_api_reconciliation_reconciliation_id"}},"/case/{case_id}":{"get":{"summary":"A case file, served forever","description":"The signed assembly a purchase minted: everything this store observed about one purchase, each section present or absent by name, the gaps counted against us, the buyer's declared inputs marked as such, and never a verdict. Read `case.gaps` first.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"type":"object","required":["case","cert_id","created_at","how_to_verify"],"properties":{"case":{"type":"object","description":"The signed case file: settlement, reconciliation, mandate, door, delivery, declared, gaps, and the conflict line when this store is a party.","required":["signature","public_key","signature_covers"],"properties":{"signature":{"type":"string","description":"ed25519 over the canonical form of the fields this object declares."},"public_key":{"type":"string"},"signature_covers":{"type":"string","description":"Which fields the signature actually covers — named on the artifact rather than assumed, because a field shown beside a signature that the signature does not cover is the defect /corrections was opened for."},"evidence_hash":{"type":"string"},"observed_at":{"type":"string","format":"date-time"},"criteria":{"type":"string","description":"The published criteria this observation was rendered under."}}},"cert_id":{"type":"string","description":"The certificate minted by the purchase. GET /api/verify/{cert_id} — free, forever, no account — and its attests field carries this record's evidence_hash."},"created_at":{"type":"string","format":"date-time"},"how_to_verify":{"type":"array","items":{"type":"string"},"description":"The steps a stranger runs without asking the buyer OR this store to be honest."},"what_this_is_not":{"type":"string","description":"A dated observation against published criteria — never an endorsement, an uptime claim, or a score on whoever runs the endpoint. This store verifies artifacts; it does not rate actors."},"read_this_first":{"type":"string","description":"Read the gaps, then the declared inputs, then the observed sections — in that order, because the absences and the claims are what a hurried reader gets wrong."},"no_verdict":{"type":"string"}}}}}},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"case_id","in":"path","required":true,"schema":{"type":"string"},"description":"From the purchase response; starts case_."}],"operationId":"get_case_case_id"}},"/api/card/{card_id}":{"get":{"summary":"A trading card's signed record, served forever","description":"The pressing: set position, key, name, type, tier, the line, the path it cites, print number, source, slot, pack and seed commit. Odds and set at /design.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"type":"object","required":["card","signature","public_key","verify_url"],"properties":{"card":{"type":"object","description":"The card, as pulled and signed."},"signature":{"type":"string"},"public_key":{"type":"string"},"algorithm":{"type":"string"},"verify_url":{"type":"string","format":"uri","description":"Free, forever, no account — and checkable offline against the published key."},"note":{"type":"string"},"face_url":{"type":"string","format":"uri"},"share_url":{"type":"string","format":"uri"},"page_url":{"type":"string","format":"uri"},"verify_id":{"type":"string"},"pack_url":{"type":"string","format":"uri"},"cite_url":{"type":"string","format":"uri"},"post":{"type":"string"}}}}}},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"card_id","in":"path","required":true,"schema":{"type":"string"},"description":"From the purchase response; starts card_."}],"operationId":"get_api_card_card_id"}},"/api/pack/{pack_id}":{"get":{"summary":"A pack's signed manifest and its five cards","description":"The manifest binds the day's seed commit, the payer, the certificate and the five card ids, and is signed on its own; each card rides the response as a signed record. The seed at seed_url, the morning after, lets anyone redo the pull.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"type":"object","required":["pack","signature","public_key","verify_url"],"properties":{"pack":{"type":"object","description":"The manifest: pack_id, season, card_ids, commit, seed_date, payer, cert_id, date, patron_number."},"signature":{"type":"string"},"public_key":{"type":"string"},"algorithm":{"type":"string"},"verify_url":{"type":"string","format":"uri","description":"Free, forever, no account — and checkable offline against the published key."},"note":{"type":"string"},"cards":{"type":"array","items":{"type":"object"}},"seed_url":{"type":"string","format":"uri"}}}}}},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"pack_id","in":"path","required":true,"schema":{"type":"string"},"description":"From the purchase response; starts pack_."}],"operationId":"get_api_pack_pack_id"}},"/api/paywall/binder/{wallet}":{"get":{"summary":"What one wallet has pulled, newest first","description":"A listing keyed by the paying wallet, when the certificate carried one. A listing, not a proof of ownership: the signed records are. 400 for a string that is not a 0x or base58 address.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"type":"object","required":["wallet","cards","count"],"properties":{"wallet":{"type":"string"},"count":{"type":"integer"},"cards":{"type":"array","items":{"type":"object"}},"note":{"type":"string"}}}}}},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"wallet","in":"path","required":true,"schema":{"type":"string"},"description":"A 0x address or a base58 Solana address."}],"operationId":"get_api_paywall_binder_wallet"}},"/api/paywall/seed/{date}":{"get":{"summary":"The day seed: its commit at once, the seed itself the day after","description":"Signed. sha256(seed) equals commit. HMAC-SHA256(seed, payer || cert_id || slot) recomputes every pull of that day from the inputs on its pack record. 400 for a day that has not started; a running day answers the commit alone.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"type":"object","required":["record","signature","public_key","revealed"],"properties":{"record":{"type":"object","properties":{"date":{"type":"string"},"commit":{"type":"string"},"seed":{"type":"string"},"published_at":{"type":"string"}}},"signature":{"type":"string"},"public_key":{"type":"string"},"revealed":{"type":"boolean"},"how_to_check":{"type":"string"}}}}}},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"date","in":"path","required":true,"schema":{"type":"string"},"description":"A UTC day, YYYY-MM-DD, since the table opened."}],"operationId":"get_api_paywall_seed_date"}},"/api/paywall/set":{"get":{"summary":"The season's set as JSON","description":"Every card in the count, the Events and the Ally: name, type, rarity, rail, the line, the path it cites, whether its plate is drawn, how many have been pressed, and the cap where one exists.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"type":"object","required":["season","cards","events","ally"],"properties":{"season":{"type":"object"},"cards":{"type":"array","items":{"type":"object"}},"events":{"type":"array","items":{"type":"object"}},"ally":{"type":"object"},"plates_drawn":{"type":"integer"},"specimen_url":{"type":"string","format":"uri"}}}}}},"304":{"$ref":"#/components/responses/NotModified"},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"operationId":"get_api_paywall_set","parameters":[{"name":"If-None-Match","in":"header","required":false,"schema":{"type":"string"},"description":"Conditional GET. Send the ETag a previous answer carried (a SHA-256 of the exact bytes served, not a version somebody maintains) and an unchanged document answers 304 with no body. Send it on a schedule instead of re-downloading what you already hold."}]}},"/api/paywall/window":{"get":{"summary":"The shop window: the last five pressings pulled store-wide","description":"Free to look at. A window pick (GET /api/buy/window_pick) moves one of the pressings on show to the picker's binder, chosen by the day seed, at half a pack; one pick per wallet per twelve hours.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"type":"object","required":["window","size"],"properties":{"window":{"type":"array","items":{"type":"object"}},"size":{"type":"integer"},"pick_url":{"type":"string","format":"uri"},"note":{"type":"string"}}}}}},"304":{"$ref":"#/components/responses/NotModified"},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"operationId":"get_api_paywall_window","parameters":[{"name":"If-None-Match","in":"header","required":false,"schema":{"type":"string"},"description":"Conditional GET. Send the ETag a previous answer carried (a SHA-256 of the exact bytes served, not a version somebody maintains) and an unchanged document answers 304 with no body. Send it on a schedule instead of re-downloading what you already hold."}]}},"/bell":{"get":{"summary":"The bell, as a room a person can walk into","description":"Free, no account and no wallet. Answers HTML, not JSON: GET renders the bell with a form, and POST /bell rings it and renders the card you got with its share and save buttons. Agents want POST /api/bell or the ring_bell tool instead — this pair exists because a door that changes something cannot be a link, and the front page needed one a human could tap.","security":[],"responses":{"200":{"description":"The bell, as a page.","content":{"text/html":{"schema":{"type":"string"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"wallet","in":"query","required":false,"schema":{"type":"string","maxLength":64},"description":"Prefills the form's wallet field so a daily ring is a bookmark and one tap. A preference, not an action: this GET rings nothing, and an address that is not one is dropped rather than echoed back."}],"operationId":"get_bell"},"post":{"summary":"Ring the bell from a browser","description":"Free. One ring a visitor a day, one common pressing. Takes a form body, not JSON, and answers HTML: the card you got, its share button and its PNG. The wallet field is optional — without one the pressing hangs at its own page; with one it lands in a binder and the daily streak counts. POST /api/bell is the JSON door and is unchanged.","security":[],"responses":{"200":{"description":"The card you just rang for, as a page.","content":{"text/html":{"schema":{"type":"string"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"requestBody":{"required":false,"content":{"application/x-www-form-urlencoded":{"schema":{"type":"object","additionalProperties":false,"properties":{"wallet":{"type":"string","maxLength":64,"description":"Optional. Where the pressing lands, and what the daily streak counts on."}}}}}},"operationId":"post_bell"}},"/api/paywall/releases":{"get":{"summary":"The release wheel: the one-of-ones' commits, and any that landed","description":"Free. The Keeper and CV are one print each, on no pack wheel and not for sale. Each has a milestone in packs opened this season, fixed when the signing key was and committed publicly since the season opened; the pack that crosses it carries the card to whoever opened it, and the bytes behind the commit are published beside it.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"type":"object","required":["cards","packs_opened"],"properties":{"packs_opened":{"type":"integer"},"counted_on":{"type":"string"},"range":{"type":"object"},"how_to_check":{"type":"string"},"cards":{"type":"array","items":{"type":"object"}}}}}}},"304":{"$ref":"#/components/responses/NotModified"},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"operationId":"get_api_paywall_releases","parameters":[{"name":"If-None-Match","in":"header","required":false,"schema":{"type":"string"},"description":"Conditional GET. Send the ETag a previous answer carried (a SHA-256 of the exact bytes served, not a version somebody maintains) and an unchanged document answers 304 with no body. Send it on a schedule instead of re-downloading what you already hold."}]}},"/api/paywall/challenge":{"post":{"summary":"The credit desk's challenge: a nonce to sign","description":"Free. Single-use, five minutes. EIP-191 personal_sign the exact challenge string with the wallet's own key, then present it at /api/paywall/burn or /api/paywall/redeem. EVM wallets only.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"type":"object","required":["challenge","expires_in_seconds"],"properties":{"challenge":{"type":"string"},"expires_in_seconds":{"type":"integer"},"how":{"type":"string"}}}}}},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"requestBody":{"required":true,"description":"The wallet: 0x plus forty hex.","content":{"application/json":{"schema":{"type":"object","required":["address"],"additionalProperties":false,"properties":{"address":{"type":"string","pattern":"^0x[0-9a-fA-F]{40}$"}}}}}},"operationId":"post_api_paywall_challenge"}},"/api/paywall/burn":{"post":{"summary":"Burn dupes into pack credit","description":"Free. Twenty commons or five uncommons this wallet holds burn into one pack of credit; rares never, Conditions never, whole batches only. Each burn is a signed record beside the pressing. Refuses by name (400) and burns nothing on a refusal.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"type":"object","required":["burned","credits","balance"],"properties":{"burned":{"type":"array","items":{"type":"string"}},"credits":{"type":"integer"},"balance":{"type":"integer"},"note":{"type":"string"}}}}}},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"requestBody":{"required":true,"description":"The wallet, its signature over the live challenge, and the card ids to burn.","content":{"application/json":{"schema":{"type":"object","required":["address","signature","card_ids"],"additionalProperties":false,"properties":{"address":{"type":"string","pattern":"^0x[0-9a-fA-F]{40}$"},"signature":{"type":"string"},"card_ids":{"type":"array","items":{"type":"string"},"minItems":1,"maxItems":100}}}}}},"operationId":"post_api_paywall_burn"}},"/api/paywall/redeem":{"post":{"summary":"Spend one pack of credit","description":"Free; the credit is the payment and nothing settles. One credit buys a pack at full odds or a window pick under the same twelve-hour lock. Never an instrument, a specific card, or cash. Refuses (400) with no credit or an empty window.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"type":"object","required":["spent","balance"],"properties":{"spent":{"type":"integer"},"balance":{"type":"integer"},"pack_id":{"type":"string"},"pack_url":{"type":"string","format":"uri"},"cards":{"type":"array","items":{"type":"object"}},"pressing":{"type":"object"}}}}}},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"requestBody":{"required":true,"description":"The wallet, its signature over the live challenge, and what the credit buys.","content":{"application/json":{"schema":{"type":"object","required":["address","signature","want"],"additionalProperties":false,"properties":{"address":{"type":"string","pattern":"^0x[0-9a-fA-F]{40}$"},"signature":{"type":"string"},"want":{"type":"string","enum":["pack","window_pick"]}}}}}},"operationId":"post_api_paywall_redeem"}},"/api/lucky/{lucky_id}":{"get":{"summary":"A lucky charm's signed record, served forever","description":"The charm as drawn, odds and herd authorship disclosed at /luckies/house.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"type":"object","required":["lucky","signature","public_key","verify_url"],"properties":{"lucky":{"type":"object","description":"The drawn card, as minted."},"signature":{"type":"string"},"public_key":{"type":"string"},"algorithm":{"type":"string"},"verify_url":{"type":"string","format":"uri","description":"Free, forever, no account — and checkable offline against the published key."},"note":{"type":"string"},"card_url":{"type":"string","format":"uri"}}}}}},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"lucky_id","in":"path","required":true,"schema":{"type":"string"},"description":"From the purchase response; starts lucky_."}],"operationId":"get_api_lucky_lucky_id"}},"/api/tab/delta":{"post":{"summary":"Contribute an anonymized tab delta to the pooled corpus","description":"The scvd-tab package's pool intake (npm: scvd-tab, MIT). Contribution is what earns pooled reads when they open; sample sizes are public at /api/tab/pool.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"type":"object","required":["accepted"],"properties":{"accepted":{"type":"boolean"},"problems":{"type":"array","items":{"type":"string"},"description":"Why a delta was refused, named rather than swallowed."},"what_a_delta_carries":{"type":"string"}}}}}},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"requestBody":{"required":true,"description":"One delta. Two shapes, selected by `kind`; an undeclared field is refused by name.","content":{"application/json":{"schema":{"type":"object","description":"An anonymized tab delta. Prices, notes and identities never ride one; an undeclared field is refused by name rather than dropped.","oneOf":[{"type":"object","title":"opened delta","required":["kind","tool_name","category"],"additionalProperties":false,"properties":{"kind":{"type":"string","enum":["opened","outcome"]},"tool_name":{"type":"string","maxLength":60,"description":"Lowercased."},"category":{"type":"string","maxLength":40,"description":"Lowercased."},"week":{"type":"string","pattern":"^\\d{4}-W\\d{2}$","description":"ISO week, e.g. 2026-W34."},"signup_friction":{"type":"string","enum":["agent_native","email_only","phone_required","kyc_required","human_only"]}}},{"type":"object","title":"outcome delta","required":["kind","tool_name","category"],"additionalProperties":false,"properties":{"kind":{"type":"string","enum":["opened","outcome"]},"tool_name":{"type":"string","maxLength":60,"description":"Lowercased."},"category":{"type":"string","maxLength":40,"description":"Lowercased."},"outcome":{"type":"string","enum":["kept_past_conversion","canceled_pre_conversion","canceled_post_conversion","replaced"]},"weeks_held":{"type":"integer","minimum":0},"replaced_with":{"type":"string","maxLength":60}}}]}}}},"operationId":"post_api_tab_delta"}},"/api/tab/pool":{"get":{"summary":"The pooled tab corpus's sample sizes","description":"What the pool holds so far, counted. Pooled reads are not built yet and this endpoint says so honestly.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"type":"object","required":["what_this_is","trust_model"],"properties":{"what_this_is":{"type":"string"},"pooled_reads":{"type":"string"},"what_a_delta_carries":{"type":"string"},"sample_sizes":{"type":"object","properties":{"opened_deltas":{"type":"integer"},"outcome_deltas":{"type":"integer"},"by_category":{"type":"object"}}},"trust_model":{"type":"string","description":"What these pooled numbers can and cannot support, since nobody's submission is verified."},"gaming":{"type":"string","description":"How this surface could be gamed, published by the surface itself."},"daily_intake_cap":{"type":"integer"},"contribute":{"type":"string"}}}}}},"304":{"$ref":"#/components/responses/NotModified"},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"operationId":"get_api_tab_pool","parameters":[{"name":"If-None-Match","in":"header","required":false,"schema":{"type":"string"},"description":"Conditional GET. Send the ETag a previous answer carried (a SHA-256 of the exact bytes served, not a version somebody maintains) and an unchanged document answers 304 with no body. Send it on a schedule instead of re-downloading what you already hold."}]}},"/health":{"get":{"summary":"Liveness, one line","description":"The 200 a reseller's contract asks for before routing traffic. Says the Worker answered and points at the signed liveness reading that says whether the store is actually open.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"type":"object","required":["ok","service","checked_at","liveness"],"properties":{"ok":{"type":"boolean"},"service":{"type":"string"},"checked_at":{"type":"string","format":"date-time"},"what_this_is":{"type":"string"},"liveness":{"type":"string","format":"uri"},"trade_counter":{"type":"string","format":"uri"}}}}}},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"operationId":"get_health"}},"/trade.md":{"get":{"summary":"The trade counter, in markdown","description":"The same room /trade serves, rendered from the same constants, at the address a checklist guesses. The canonical link points back at /trade: one document, two addresses.","security":[],"responses":{"200":{"description":"OK","content":{"text/markdown":{"schema":{"type":"string"}}}},"304":{"$ref":"#/components/responses/NotModified"},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"operationId":"get_trade_md","parameters":[{"name":"If-None-Match","in":"header","required":false,"schema":{"type":"string"},"description":"Conditional GET. Send the ETag a previous answer carried (a SHA-256 of the exact bytes served, not a version somebody maintains) and an unchanged document answers 304 with no body. Send it on a schedule instead of re-downloading what you already hold."}]}},"/api/trade/contract":{"get":{"summary":"The trade counter's contract","description":"How a marketplace orders the shelf on account: the door, the signing dialects, the pricing rule with every trade price derived from the live menu, each open account's row, every refusal by name, and what the store never sees. Free to read; the counter itself is billed per delivery on a statement.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"type":"object","required":["what_this_is","door","how_to_call","dialects","pricing","shelf","accounts","errors","ledger","honest_limits"],"properties":{"what_this_is":{"type":"string"},"opened":{"type":"string"},"door":{"type":"string"},"how_to_call":{"type":"object"},"dialects":{"type":"array","items":{"type":"object","properties":{"id":{"type":"string"},"name":{"type":"string"},"headers":{"type":"object"},"signing_string":{"type":"string"},"signature":{"type":"string"},"timestamp_unit":{"type":"string"},"window_seconds":{"type":"integer"}}}},"pricing":{"type":"object","properties":{"rule":{"type":"string"},"uplift_bps":{"type":"integer"},"min_retail_usd":{"type":"number"},"example_share_bps":{"type":"integer"},"cadence":{"type":"string"}}},"shelf":{"type":"array","items":{"type":"object","properties":{"item_id":{"type":"string"},"name":{"type":"string"},"retail_usd":{"type":"number"},"trade_price_usd_at_example_share":{"type":"number"},"store_net_usd_at_example_share":{"type":"number"},"cadence":{"type":"string"},"input_kind":{"type":"string"},"fields":{"type":"array","items":{"type":"string"}}}}},"eligible_but_not_yet_shelved":{"type":"array","items":{"type":"string"}},"accounts":{"type":"array","items":{"type":"object","properties":{"account":{"type":"string"},"name":{"type":"string"},"dialect":{"type":"string"},"mode":{"type":"string","enum":["live","test"]},"provisioned":{"type":"boolean","description":"Whether the account's signing secret is set on this side; false answers 503 account_not_provisioned at every signed door."},"door_status":{"type":"string","enum":["open","awaiting_secret"]},"secret_scope":{"type":"string","enum":["per_account","per_listing"],"description":"Whether one pair verifies every item or each item verifies against its own."},"secret_scope_note":{"type":"string"},"partner_share_bps":{"type":"integer"},"daily_cap":{"type":"integer"},"door":{"type":"string"},"fixture":{"type":"object","description":"One deterministic order for the account: door, body, expected values on the 200, and the response invariants."},"partner_terms":{"type":"array","items":{"type":"string"},"description":"The partner's own terms as they answered them: retries, refunds, rotation, price unit."},"items":{"type":"array","items":{"type":"object"}}}}},"expected_outcome":{"type":"string"},"response_invariants":{"type":"array","items":{"type":"object","required":["path","holds"],"properties":{"path":{"type":"string"},"holds":{"type":"string"}}}},"errors":{"type":"array","items":{"type":"object","required":["status","code","meaning","what_to_do"],"properties":{"status":{"type":"integer"},"code":{"type":"string"},"meaning":{"type":"string"},"what_to_do":{"type":"string"}}}},"ledger":{"type":"string","format":"uri"},"room":{"type":"string","format":"uri"},"honest_limits":{"type":"string"},"security":{"type":"object"}}}}}},"304":{"$ref":"#/components/responses/NotModified"},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"operationId":"get_api_trade_contract","parameters":[{"name":"If-None-Match","in":"header","required":false,"schema":{"type":"string"},"description":"Conditional GET. Send the ETag a previous answer carried (a SHA-256 of the exact bytes served, not a version somebody maintains) and an unchanged document answers 304 with no body. Send it on a schedule instead of re-downloading what you already hold."}]}},"/api/trade/ledger":{"get":{"summary":"Every trade account's books","description":"Delivered, billed, net, paid and outstanding per account, derived from the delivery rows at request time, with the truncation flag any bounded read here carries. The receivable is public because a liability off the books is how stores rot.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"type":"object","required":["what_this_is","read_at","accounts","bounded_read"],"properties":{"what_this_is":{"type":"string"},"read_at":{"type":"string","format":"date-time"},"accounts":{"type":"array","items":{"type":"object","required":["account","mode","delivered_live","delivered_test","billed_usd","net_usd","paid_usd","outstanding_usd","truncated"],"properties":{"account":{"type":"string"},"name":{"type":"string"},"site":{"type":"string"},"mode":{"type":"string","enum":["live","test"]},"opened":{"type":"string"},"partner_share_bps":{"type":"integer"},"daily_cap":{"type":"integer"},"credit_ceiling_usd":{"type":"number"},"items":{"type":"array","items":{"type":"string"}},"delivered_live":{"type":"integer"},"delivered_test":{"type":"integer"},"billed_usd":{"type":"number"},"net_usd":{"type":"number"},"paid_usd":{"type":"number"},"outstanding_usd":{"type":"number"},"last_delivery_at":{"type":"string","nullable":true},"last_payout_at":{"type":"string","nullable":true},"oldest_unpaid_at":{"type":"string","nullable":true},"truncated":{"type":"boolean"}}}},"bounded_read":{"type":"string"},"terms":{"type":"string","format":"uri"}}}}}},"304":{"$ref":"#/components/responses/NotModified"},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"operationId":"get_api_trade_ledger","parameters":[{"name":"If-None-Match","in":"header","required":false,"schema":{"type":"string"},"description":"Conditional GET. Send the ETag a previous answer carried (a SHA-256 of the exact bytes served, not a version somebody maintains) and an unchanged document answers 304 with no body. Send it on a schedule instead of re-downloading what you already hold."}]}},"/api/trade/catalog":{"get":{"summary":"The trade counter's listing feed","description":"Every item at the counter with the copy the item page prints, what it reads, its constraints, the free specimen, the artifact class and what it does not prove, and the price at the caller's share — derived from the rows our own shelf renders. Pass ?account={id} for an account's own items and prices.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"type":"object","required":["what_this_is","share_bps","items","pricing_rule","contract"],"properties":{"what_this_is":{"type":"string"},"account":{"type":"string"},"share_bps":{"type":"integer"},"note":{"type":"string"},"items":{"type":"array","items":{"type":"object","properties":{"item_id":{"type":"string"},"name":{"type":"string"},"subtitle":{"type":"string"},"description":{"type":"string"},"what_it_reads":{"type":"string"},"constraints":{"type":"array","items":{"type":"string"}},"cadence":{"type":"string"},"retail_usd":{"type":"number"},"share_bps":{"type":"integer"},"trade_price_usd":{"type":"number"},"store_net_usd":{"type":"number"},"input_kind":{"type":"string"},"fields":{"type":"array","items":{"type":"string"}},"specimen":{"type":"string","format":"uri"},"artifact_class":{"type":"string"},"signs":{"type":"string"},"does_not_prove":{"type":"string"},"verify_url_template":{"type":"string"},"item_page":{"type":"string","format":"uri"},"front_door":{"type":"string","format":"uri"}}}},"pricing_rule":{"type":"string"},"contract":{"type":"string","format":"uri"},"verify_note":{"type":"string"}}}}}},"304":{"$ref":"#/components/responses/NotModified"},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"account","in":"query","required":false,"schema":{"type":"string"},"description":"A trade account id; prices print at its share and the list narrows to its items."},{"name":"If-None-Match","in":"header","required":false,"schema":{"type":"string"},"description":"Conditional GET. Send the ETag a previous answer carried (a SHA-256 of the exact bytes served, not a version somebody maintains) and an unchanged document answers 304 with no body. Send it on a schedule instead of re-downloading what you already hold."}],"operationId":"get_api_trade_catalog"}},"/api/trade/sandbox/check":{"post":{"summary":"The sandbox's check desk","description":"Send exactly the headers and body you would send to the order door. All four checks run and each is reported — headers present, provider key, clock skew, nonce shape, whether the HMAC verified under the secret in service or the previous one — with the sha256 of the signing string we computed so you can compare bytes. No nonce is consumed, nothing is delivered, no money moves. On the sandbox account the expected signature is printed, since that secret is public. THIS PATH IS THE SANDBOX: the account named sandbox, whose signing secret and provider key are published on /trade and returned by a GET on its check desk. Real signatures checked, real goods delivered and marked test, nothing booked to anyone, fifty a day.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"$ref":"#/components/schemas/TradeCheck"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"requestBody":{"required":true,"description":"The body you would send to the order door, byte for byte.","content":{"application/json":{"schema":{"type":"object","description":"The item's own fields (see /api/trade/contract shelf[].fields) at the top level or under `inputs`, plus the optional common fields. Sign the EXACT bytes you send.","properties":{"inputs":{"type":"object","description":"Optional envelope for the item's fields."},"order_ref":{"type":"string","maxLength":120,"description":"Your order id. A retry carrying the same order_ref within a day returns the original delivery and bills nothing twice."},"agent_name":{"type":"string","maxLength":80},"purpose":{"type":"string","maxLength":280},"callback_url":{"type":"string","format":"uri","description":"Optional. A public https URL; after the response, the signed delivery receipt (certificate, signature, verify_url) is POSTed there once, with Web Bot Auth headers on the request. The outcome is written on your statement row."},"url":{"type":"string","format":"uri","description":"For the probe items: a public https door."},"summary":{"type":"string","description":"context_anchor: the state to remember."},"digest":{"type":"string","pattern":"^[0-9a-fA-F]{64}$","description":"bitcoin_anchor: a sha256 you computed."},"label":{"type":"string","maxLength":120},"address":{"type":"string","description":"provenance_check: an EVM address or Solana pubkey."},"max_usd":{"type":"number","description":"good_buyer: the client's declared per-payment cap."},"no_spend_controls":{"type":"boolean"}}}}}},"parameters":[{"name":"X-Trade-Timestamp","in":"header","required":true,"schema":{"type":"string"},"description":"As you would send it to the order door."},{"name":"X-Trade-Nonce","in":"header","required":false,"schema":{"type":"string"},"description":"As you would send it."},{"name":"X-Trade-Signature","in":"header","required":false,"schema":{"type":"string"},"description":"As you would send it."},{"name":"X-Trade-Key","in":"header","required":false,"schema":{"type":"string"},"description":"As you would send it, where the dialect has one."}],"operationId":"post_api_trade_sandbox_check"}},"/api/trade/sandbox/{item_id}":{"post":{"summary":"Order one item on the sandbox account","description":"NOT free and NOT x402: the marketplace named by {partner} collected its customer's payment and is billed the trade price on its statement. The request is authenticated by HMAC-SHA256 over timestamp, nonce and the exact body under the account's dialect (/api/trade/contract), a five-minute window, and a nonce never seen before. Delivers the same signed goods /api/buy/{item_id} would, with a certificate that says settled_via: trade_account and carries no chain fields. THIS PATH IS THE SANDBOX: the account named sandbox, whose signing secret and provider key are published on /trade and returned by a GET on its check desk. Real signatures checked, real goods delivered and marked test, nothing booked to anyone, fifty a day.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"$ref":"#/components/schemas/TradeDelivery"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"401":{"description":"The signature, timestamp, nonce or provider key did not verify. delivered:false, billed:false, and the code names which.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/TradeRefusal"}}}},"404":{"$ref":"#/components/responses/NotFound"},"409":{"description":"Replayed: this nonce or instruction was already presented. 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Sign the EXACT bytes you send.","properties":{"inputs":{"type":"object","description":"Optional envelope for the item's fields."},"order_ref":{"type":"string","maxLength":120,"description":"Your order id. A retry carrying the same order_ref within a day returns the original delivery and bills nothing twice."},"agent_name":{"type":"string","maxLength":80},"purpose":{"type":"string","maxLength":280},"callback_url":{"type":"string","format":"uri","description":"Optional. A public https URL; after the response, the signed delivery receipt (certificate, signature, verify_url) is POSTed there once, with Web Bot Auth headers on the request. 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The request is authenticated by HMAC-SHA256 over timestamp, nonce and the exact body under the account's dialect (/api/trade/contract), a five-minute window, and a nonce never seen before. Delivers the same signed goods /api/buy/{item_id} would, with a certificate that says settled_via: trade_account and carries no chain fields.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"$ref":"#/components/schemas/TradeDelivery"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"401":{"description":"The signature, timestamp, nonce or provider key did not verify. delivered:false, billed:false, and the code names which.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/TradeRefusal"}}}},"404":{"$ref":"#/components/responses/NotFound"},"409":{"description":"Replayed: this nonce or instruction was already presented. 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Five-minute expiry. Built for the agent whose context reset between paying and reading the response.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"type":"object","required":["challenge","expires_in_seconds","single_use"],"properties":{"challenge":{"type":"string","description":"The exact UTF-8 string to sign, with the same key that signs your payments."},"expires_in_seconds":{"type":"integer"},"single_use":{"type":"boolean","description":"Spent on first use, so a captured signature replays nothing."},"format":{"type":"string"},"sign_how":{"type":"string"}}}}}},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"requestBody":{"required":true,"description":"The wallet that paid. Nothing else, and nothing about you.","content":{"application/json":{"schema":{"type":"object","required":["address"],"additionalProperties":false,"properties":{"address":{"type":"string","description":"0x + 40 hex for the EVM rails (Base and Polygon share addresses), or a base58 Solana address sent exactly — base58 is case-sensitive and never folded."}}}}}},"operationId":"post_api_claims_challenge"}},"/api/claims":{"get":{"summary":"How purchase recovery works","description":"The claims door, described: challenge-response, every rail the store settles on, what a valid claim returns.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"type":"object","required":["what","how","free"],"properties":{"what":{"type":"string"},"how":{"type":"array","items":{"type":"string"}},"free":{"type":"boolean"},"why_a_challenge":{"type":"string","description":"Why a signature over a nonce rather than a claim we take on trust."},"limits":{"type":"string"},"recover_original_good":{"type":"string"}}}}}},"304":{"$ref":"#/components/responses/NotModified"},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"operationId":"get_api_claims","parameters":[{"name":"If-None-Match","in":"header","required":false,"schema":{"type":"string"},"description":"Conditional GET. 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Keep the response private.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"type":"object","properties":{"address":{"type":"string"}},"oneOf":[{"type":"object","required":["address","certificates","orders","watches","recover_original_good"],"properties":{"address":{"type":"string"},"certificates":{"type":"array","description":"Signed certificates from instant purchases, each with its permanent URL.","items":{"type":"object"}},"orders":{"type":"array","items":{"type":"object"}},"watches":{"type":"array","items":{"type":"object"}},"certificates_truncated":{"type":"string"},"watches_truncated":{"type":"string"},"recover_original_good":{"type":"string"}}},{"type":"object","required":["address","cert_id","recovery_state","next_action","settlement_attempted","charged_again"],"properties":{"address":{"type":"string"},"cert_id":{"type":"string","pattern":"^cert_[A-Za-z0-9_-]+$","maxLength":128,"description":"Optional. 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Keep private."},"resolution":{"type":"object"},"charged":{"type":["boolean","null"]},"charged_again":{"const":false},"settlement_attempted":{"const":false},"verify_url":{"type":"string","format":"uri"},"contact_url":{"type":"string","format":"uri"}}}]}}}},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"requestBody":{"required":true,"description":"The address and its signature over the challenge string from POST /api/claims/challenge.","content":{"application/json":{"schema":{"type":"object","required":["address","signature"],"additionalProperties":false,"properties":{"address":{"type":"string","description":"The same address the challenge was issued for."},"signature":{"type":"string","description":"The challenge string signed by that address's key. 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Free.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"type":"object","required":["version","weeks"],"properties":{"version":{"type":"integer"},"weeks":{"type":"array","items":{"type":"object"},"description":"Each signed week, oldest first. Empty before the first."}}}}}},"304":{"$ref":"#/components/responses/NotModified"},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"operationId":"get_registry","parameters":[{"name":"Accept","in":"header","required":false,"schema":{"type":"string","enum":["application/json","text/html"]},"description":"This door negotiates: application/json, text/html, parsed with q-values (RFC 9110 §12.5.1). A bare wildcard or no header gets application/json; a named AI reader that states no preference gets markdown where it is offered. The answer carries Vary."},{"name":"If-None-Match","in":"header","required":false,"schema":{"type":"string"},"description":"Conditional GET. Send the ETag a previous answer carried (a SHA-256 of the exact bytes served, not a version somebody maintains) and an unchanged document answers 304 with no body. Send it on a schedule instead of re-downloading what you already hold."}]}},"/api/practice":{"get":{"summary":"The obstacle course","description":"Practice doors that fail in deliberate, named, deterministic ways — malformed 402s, testnet traps, name payTo, wrong-rail payTo, and one perfectly-formed dust offer you should parse but never pay. Each body names the defect, the right client behavior, and the preflight check that catches it. Free; nothing mints; not counted in any metric.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"type":"object","required":["what","how","scenarios","nothing_here_mints"],"properties":{"what":{"type":"string"},"how":{"type":"string"},"scenarios":{"type":"array","items":{"type":"object"},"description":"Each rehearsal a client can run, and what it returns."},"nothing_here_mints":{"type":"string","description":"No artifact, no payment, no record — stated in the contract because a practice door that quietly did any of those would be the worst surface here."},"when_it_is_your_door":{"type":"string"}}}}}},"304":{"$ref":"#/components/responses/NotModified"},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"operationId":"get_api_practice","parameters":[{"name":"If-None-Match","in":"header","required":false,"schema":{"type":"string"},"description":"Conditional GET. 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Free, one document per call.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"type":"object","required":["payload","signature","public_key"],"properties":{"payload":{"type":"object","required":["verdict","checks","not_checked","assurance_level"],"properties":{"artifact":{"type":"string"},"verified_at":{"type":"string","format":"date-time"},"verdict":{"type":"string"},"receipt_sha256":{"type":"string"},"issuer":{"type":"object"},"checks":{"type":"array","items":{"type":"object"}},"not_checked":{"type":"array","items":{"type":"object"},"description":"What this verdict did NOT establish, beside what it did."},"assurance_level":{"type":"string","description":"How far the verdict reaches, so it is not quoted past its own scope."},"stateless":{"type":"string","description":"Nothing submitted here is stored."}}},"signature":{"type":"string"},"signature_jcs":{"type":"string"},"signed_payload":{"type":"string","description":"The exact bytes the signature covers, served beside it."},"public_key":{"type":"string"},"verify_hint":{"type":"string"}}}}}},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"requestBody":{"required":true,"description":"The receipt itself, as JSON, whoever issued it. 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A batch over the ceiling is refused whole rather than truncated: a report on doors nobody looked at is the exact defect this instrument exists to catch. 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A validation refusal (400, e.g. a missing or unprobeable URL) returns BEFORE either bucket is touched and carries no RateLimit fields, because a malformed request never spent a probe; this contract used to declare them on those responses too, which described a header that had never been sent. No other operation enforces an application-level ceiling, and so returns no RateLimit headers: declaring a ceiling nothing enforces would be worse than declaring none. A 429 can also arrive from the edge under abuse conditions. A refused request is never charged for. The two figures above are read from the limiter's own constants, not restated here — this string asserted that NO limit existed for a day after one shipped.","content":{"application/problem+json":{"schema":{"$ref":"#/components/schemas/Problem"}},"application/json":{"schema":{"$ref":"#/components/schemas/Problem"}}},"headers":{"Retry-After":{"schema":{"type":"integer"},"description":"Seconds to wait before retrying."},"RateLimit-Limit":{"$ref":"#/components/headers/RateLimit-Limit"},"RateLimit-Remaining":{"$ref":"#/components/headers/RateLimit-Remaining"},"RateLimit-Reset":{"$ref":"#/components/headers/RateLimit-Reset"},"RateLimit-Policy":{"$ref":"#/components/headers/RateLimit-Policy"},"RateLimit":{"$ref":"#/components/headers/RateLimit"}}},"500":{"description":"Something fell off a shelf. 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No Idempotency-Key: this is a READ expressed as a POST — it writes nothing and stores nothing about the asker, so it is safe to retry by construction.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"$ref":"#/components/schemas/AskAnswer"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"requestBody":{"required":true,"description":"The question, and how you want it answered.","content":{"application/json":{"schema":{"type":"object","required":["query"],"additionalProperties":false,"properties":{"query":{"type":"string","minLength":1,"description":"The natural-language question, about this store and what it publishes."},"mode":{"type":"string","enum":["list","summarize","generate"],"default":"list","description":"Only `list` is implemented. 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Retained wallet-sign readings and Season One pages; the reader follows its original calendar.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"type":"object","required":["address","sign","week"],"properties":{"status":{"type":"string","const":"archived"},"address":{"type":"string"},"sign":{"type":"string"},"sign_id":{"type":"string"},"week":{"type":"string"},"season":{"type":"integer"},"season_week":{"type":"integer"},"essence":{"type":"string"},"penalty":{"type":"string"},"forecast":{"type":"string"},"auspicious":{"type":"string"},"avoid":{"type":"string"},"compatible":{"type":"string"},"conditions":{"type":"string"},"page":{"type":"string","format":"uri"}}}}}},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"deprecated":true,"parameters":[{"name":"address","in":"path","required":true,"schema":{"type":"string"},"description":"A 0x address with forty hex characters, or an exact case-sensitive base58 Solana address."}],"operationId":"get_zodiac_address"}},"/zodiac/archive":{"get":{"summary":"Systems Almanac archive index","description":"Archived Season One pages, outside the active catalog. This free index lists available paid URLs and checkout terms; it is not a promise of new editions.","security":[],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"type":"object","required":["pages"],"properties":{"status":{"type":"string","const":"archived"},"archive":{"type":"string"},"pages":{"type":"array","items":{"type":"object","properties":{"sign":{"type":"string"},"week":{"type":"string"},"url":{"type":"string","format":"uri"}}}},"price_usdc":{"type":"number"},"season_weeks_elapsed":{"type":"integer"}}}}}},"304":{"$ref":"#/components/responses/NotModified"},"400":{"$ref":"#/components/responses/BadRequest"},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"deprecated":true,"operationId":"get_zodiac_archive","parameters":[{"name":"If-None-Match","in":"header","required":false,"schema":{"type":"string"},"description":"Conditional GET. Send the ETag a previous answer carried (a SHA-256 of the exact bytes served, not a version somebody maintains) and an unchanged document answers 304 with no body. Send it on a schedule instead of re-downloading what you already hold."}]}},"/api/buy/spot_check":{"get":{"summary":"Ask what the observatory already knows about an x402 host — signed, from its books, before I spend anything at that door","description":"Name a host and get what this observatory already holds on it, signed: corpus rounds and verdicts as recorded, when we last actually knocked, our coverage of the window since we met it, and the gaps with their reasons. Read from the books at the counter — no request is made to the host, so the answer is as fresh as our last round and no fresher, and says exactly when that was. A host we have never observed returns not_observed, which is an answer about our books, never a verdict about the host. The same facts serve free at /corpus/host/{host}.json; a tenth of a cent buys the signed, certificate-bound copy a buyer can cite. Delivered in the response.","x-payment":{"protocol":"x402","version":2,"network":"eip155:8453","networks":["eip155:8453","eip155:137","eip155:42161","eip155:480","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"asset":"USDC","price_usdc_options":[0.001]},"x-payment-info":{"protocol":"x402","protocols":[{"x402":{}}],"price":{"mode":"fixed","amount":"0.001","currency":"USD"},"x402Version":2,"scheme":"exact","asset":"USDC","accepts":[{"scheme":"exact","network":"eip155:8453","amount":"1000","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:137","amount":"1000","asset":"0x3c499c542cef5e3811e1192ce70d8cc03d5c3359","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:42161","amount":"1000","asset":"0xaf88d065e77c8cc2239327c5edb3a432268e5831","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:480","amount":"1000","asset":"0x79a02482a880bce3f13e09da970dc34db4cd24d1","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","amount":"1000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","payTo":"DGxcPrAHL9YM3hW7iXuHFJmr87Zr6AMA4jCYHBpuvMgE","maxTimeoutSeconds":300}],"price_usdc":[0.001],"max_timeout_seconds":300,"challenge_header":"PAYMENT-REQUIRED","payment_header":"PAYMENT-SIGNATURE","legacy_payment_header":"X-PAYMENT","settlement":"Delivers first, settles after: the payment is presented only once the goods exist, so a failed delivery takes no money.","discovery":"https://scvd.store/.well-known/x402.json","documentation":"https://scvd.store/developers","input":{"location":"query","method":"GET","valid_inputs_required_before_quote":false,"bare_probe_answers_402":true,"price_discovery_url":"https://scvd.store/menu/spot_check?view=compact","schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","title":"Spot Check request","description":"Query parameters for GET /api/buy/spot_check. 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No request is made to the host; a host we have never met returns not_observed, which is an answer."}},"required":["host"],"additionalProperties":false}}},"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"$ref":"#/components/schemas/DeliveryEnvelope"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"402":{"description":"Payment required: the offer, not a failure. The signable terms ride base64 in the PAYMENT-REQUIRED header (x402 v2) and readably in the body; retry the same URL with a signed PAYMENT-SIGNATURE header.","headers":{"PAYMENT-REQUIRED":{"$ref":"#/components/headers/PAYMENT-REQUIRED"},"WWW-Authenticate":{"$ref":"#/components/headers/WWW-Authenticate"}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/PaymentRequiredChallenge"}}}},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"agent_name","in":"query","schema":{"type":"string","maxLength":80},"example":"friendly-agent","description":"Optional name to put on the certificate and patron badge, up to 80 characters."},{"name":"purpose","in":"query","schema":{"type":"string","maxLength":280},"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},{"name":"host","in":"query","required":true,"schema":{"type":"string","pattern":"^\\s*(?:[a-zA-Z0-9][a-zA-Z0-9.-]*\\.[a-zA-Z0-9-]+)\\s*$"},"example":"example.com","description":"A bare hostname, e.g. example.com. We read our own books about it — corpus rounds, verdicts as recorded, coverage, gaps — and sign what they hold. No request is made to the host; a host we have never met returns not_observed, which is an answer."},{"name":"Idempotency-Key","in":"header","required":false,"schema":{"type":"string","minLength":16,"maxLength":128},"description":"Optional. Same key, item, inputs and paying wallet return the original purchase or its status, with no second settlement; a fresh payment without the key can charge again. Echo idempotency.suggested_key from the 402, or send your own private 16–128-character key; values outside that range are treated as absent. Full rule: /developers.","example":"scvd-your-own-high-entropy-value-0001"}],"operationId":"get_api_buy_spot_check"}},"/api/buy/settlement_attestation":{"get":{"summary":"Prove to a third party that a payment actually settled on chain","description":"An independent signed observation of whether an x402 payment settled — on Base, Polygon or Solana, and the identifier's own shape picks the rail: a 0x hash names an EVM transaction rather than a chain, so it is read on Base and then on Polygon; a base58 signature reads Solana. Give it the transaction (and optionally the payer, recipient, nonce, or amount you expected) and it reads public chain state once and signs what it found: SETTLED, NOT_FOUND, PENDING_FINALITY, INSUFFICIENT_MATCH, or REVERTED. Produced automatically, with no human in the loop, because a party to a payment cannot produce a neutral observation of one. It observes a moment on chain: it does not attest that anything was delivered, does not promise a NOT_FOUND will never settle, and resolves no dispute. Delivered in the response.","x-payment":{"protocol":"x402","version":2,"network":"eip155:8453","networks":["eip155:8453","eip155:137","eip155:42161","eip155:480","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"asset":"USDC","price_usdc_options":[0.004]},"x-payment-info":{"protocol":"x402","protocols":[{"x402":{}}],"price":{"mode":"fixed","amount":"0.004","currency":"USD"},"x402Version":2,"scheme":"exact","asset":"USDC","accepts":[{"scheme":"exact","network":"eip155:8453","amount":"4000","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:137","amount":"4000","asset":"0x3c499c542cef5e3811e1192ce70d8cc03d5c3359","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:42161","amount":"4000","asset":"0xaf88d065e77c8cc2239327c5edb3a432268e5831","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:480","amount":"4000","asset":"0x79a02482a880bce3f13e09da970dc34db4cd24d1","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","amount":"4000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","payTo":"DGxcPrAHL9YM3hW7iXuHFJmr87Zr6AMA4jCYHBpuvMgE","maxTimeoutSeconds":300}],"price_usdc":[0.004],"max_timeout_seconds":300,"challenge_header":"PAYMENT-REQUIRED","payment_header":"PAYMENT-SIGNATURE","legacy_payment_header":"X-PAYMENT","settlement":"Delivers first, settles after: the payment is presented only once the goods exist, so a failed delivery takes no money.","discovery":"https://scvd.store/.well-known/x402.json","documentation":"https://scvd.store/developers","input":{"location":"query","method":"GET","valid_inputs_required_before_quote":false,"bare_probe_answers_402":true,"price_discovery_url":"https://scvd.store/menu/settlement_attestation?view=compact","schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","title":"Settlement Attestation request","description":"Query parameters for GET /api/buy/settlement_attestation. 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Read once, at one moment; never polled."},"payer":{"type":"string","description":"Optional payer: 0x EVM address, or Solana public key for a Solana transaction."},"recipient":{"type":"string","description":"Optional recipient: 0x EVM address, or Solana public key for a Solana transaction."},"nonce":{"type":"string","description":"Optional, EVM rails only. Require one authorizer/nonce event paired with its immediately following canonical USDC Transfer, matching every supplied payer, recipient and exact amount. Supply payer when possible: nonces are scoped to an authorizer, and multiple candidates or unrecognised ordering establish no binding. Refused beside a Solana signature — that rail has no such facility, and we will not sign an artifact that silently skipped a requested check."},"amount_usdc":{"type":"number","exclusiveMinimum":0,"description":"Optional. Require a transfer of exactly this many USDC. Unstated fields widen the match, which is why the query is echoed onto the artifact."},"payment_payload":{"type":"string","description":"Optional. The base64 PAYMENT-SIGNATURE you sent, verbatim. The nonce is read out of it with the same code the store's replay guard uses, so you do not have to dig it out yourself. Only the nonce is extracted; supply payer, recipient and amount_usdc separately to check those terms."},"payment_response":{"type":"string","description":"Optional. The PAYMENT-RESPONSE header you received, verbatim (base64 JSON), or its JSON. Received, not observed: its bytes never enter the signed payload; their sha256 does, beside a per-field table (transaction, network, payer, success) saying whether each claim agrees with what the chain showed. The bytes are echoed outside the signature so you can check both."}},"required":["tx_hash"],"additionalProperties":false}}},"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"$ref":"#/components/schemas/DeliveryEnvelope"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"402":{"description":"Payment required: the offer, not a failure. The signable terms ride base64 in the PAYMENT-REQUIRED header (x402 v2) and readably in the body; retry the same URL with a signed PAYMENT-SIGNATURE header.","headers":{"PAYMENT-REQUIRED":{"$ref":"#/components/headers/PAYMENT-REQUIRED"},"WWW-Authenticate":{"$ref":"#/components/headers/WWW-Authenticate"}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/PaymentRequiredChallenge"}}}},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"agent_name","in":"query","schema":{"type":"string","maxLength":80},"example":"friendly-agent","description":"Optional name to put on the certificate and patron badge, up to 80 characters."},{"name":"purpose","in":"query","schema":{"type":"string","maxLength":280},"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},{"name":"tx_hash","in":"query","required":true,"schema":{"type":"string","pattern":"^(0x[0-9a-fA-F]{64}|[1-9A-HJ-NP-Za-km-z]{64,88})$"},"example":"0x47c8fee47c8fee47c8fee47c8fee47c8fee47c8fee47c8fee47c8fee47c8fee0","description":"The transaction to observe: a Base transaction hash (0x + 64 hex) or a Solana transaction signature (base58). The identifier's shape selects the chain. Read once, at one moment; never polled."},{"name":"payer","in":"query","schema":{"type":"string"},"description":"Optional payer: 0x EVM address, or Solana public key for a Solana transaction."},{"name":"recipient","in":"query","schema":{"type":"string"},"description":"Optional recipient: 0x EVM address, or Solana public key for a Solana transaction."},{"name":"nonce","in":"query","schema":{"type":"string"},"description":"Optional, EVM rails only. Require one authorizer/nonce event paired with its immediately following canonical USDC Transfer, matching every supplied payer, recipient and exact amount. Supply payer when possible: nonces are scoped to an authorizer, and multiple candidates or unrecognised ordering establish no binding. Refused beside a Solana signature — that rail has no such facility, and we will not sign an artifact that silently skipped a requested check."},{"name":"amount_usdc","in":"query","schema":{"type":"number","exclusiveMinimum":0},"description":"Optional. Require a transfer of exactly this many USDC. Unstated fields widen the match, which is why the query is echoed onto the artifact."},{"name":"payment_payload","in":"query","schema":{"type":"string"},"description":"Optional. The base64 PAYMENT-SIGNATURE you sent, verbatim. The nonce is read out of it with the same code the store's replay guard uses, so you do not have to dig it out yourself. Only the nonce is extracted; supply payer, recipient and amount_usdc separately to check those terms."},{"name":"payment_response","in":"query","schema":{"type":"string"},"description":"Optional. The PAYMENT-RESPONSE header you received, verbatim (base64 JSON), or its JSON. Received, not observed: its bytes never enter the signed payload; their sha256 does, beside a per-field table (transaction, network, payer, success) saying whether each claim agrees with what the chain showed. The bytes are echoed outside the signature so you can check both."},{"name":"Idempotency-Key","in":"header","required":false,"schema":{"type":"string","minLength":16,"maxLength":128},"description":"Optional. Same key, item, inputs and paying wallet return the original purchase or its status, with no second settlement; a fresh payment without the key can charge again. Echo idempotency.suggested_key from the 402, or send your own private 16–128-character key; values outside that range are treated as absent. Full rule: /developers.","example":"scvd-your-own-high-entropy-value-0001"}],"operationId":"get_api_buy_settlement_attestation"}},"/api/buy/small_blessing":{"get":{"summary":"Settle a real x402 payment for the smallest amount possible","description":"One short blessing from the jar by the register, written by the keeper in advance and drawn at random, never the same slip twice in a row. Half a cent. The cheapest genuine article on the internet, as far as we know. Delivered in the response.","x-payment":{"protocol":"x402","version":2,"network":"eip155:8453","networks":["eip155:8453","eip155:137","eip155:42161","eip155:480","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"asset":"USDC","price_usdc_options":[0.005]},"x-payment-info":{"protocol":"x402","protocols":[{"x402":{}}],"price":{"mode":"fixed","amount":"0.005","currency":"USD"},"x402Version":2,"scheme":"exact","asset":"USDC","accepts":[{"scheme":"exact","network":"eip155:8453","amount":"5000","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:137","amount":"5000","asset":"0x3c499c542cef5e3811e1192ce70d8cc03d5c3359","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:42161","amount":"5000","asset":"0xaf88d065e77c8cc2239327c5edb3a432268e5831","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:480","amount":"5000","asset":"0x79a02482a880bce3f13e09da970dc34db4cd24d1","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","amount":"5000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","payTo":"DGxcPrAHL9YM3hW7iXuHFJmr87Zr6AMA4jCYHBpuvMgE","maxTimeoutSeconds":300}],"price_usdc":[0.005],"max_timeout_seconds":300,"challenge_header":"PAYMENT-REQUIRED","payment_header":"PAYMENT-SIGNATURE","legacy_payment_header":"X-PAYMENT","settlement":"Delivers first, settles after: the payment is presented only once the goods exist, so a failed delivery takes no money.","discovery":"https://scvd.store/.well-known/x402.json","documentation":"https://scvd.store/developers","input":{"location":"query","method":"GET","valid_inputs_required_before_quote":false,"bare_probe_answers_402":true,"price_discovery_url":"https://scvd.store/menu/small_blessing?view=compact","schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","title":"A Small Blessing request","description":"Query parameters for GET /api/buy/small_blessing. Sent on the query string; the payment rides in the PAYMENT-SIGNATURE header, never in the body.","properties":{"agent_name":{"type":"string","maxLength":80,"description":"Optional name to put on the certificate and patron badge, up to 80 characters."},"purpose":{"type":"string","maxLength":280,"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."}},"additionalProperties":false}}},"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"$ref":"#/components/schemas/DeliveryEnvelope"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"402":{"description":"Payment required: the offer, not a failure. 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Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},{"name":"Idempotency-Key","in":"header","required":false,"schema":{"type":"string","minLength":16,"maxLength":128},"description":"Optional. Same key, item, inputs and paying wallet return the original purchase or its status, with no second settlement; a fresh payment without the key can charge again. Echo idempotency.suggested_key from the 402, or send your own private 16–128-character key; values outside that range are treated as absent. Full rule: /developers.","example":"scvd-your-own-high-entropy-value-0001"}],"operationId":"get_api_buy_small_blessing"}},"/api/buy/settlement_reconciliation":{"get":{"summary":"Observe an agent payment's USDC movement against an attributable fixed value or a declared ceiling, stating when no cap is observable","description":"Give a Base transaction hash to receive a signed observation of the USDC movement and any attributable authorization limit. A paired EIP-3009 authorization fixes the selected transfer's value: no discretion. An Approval in the same receipt does not establish which allowance funded that transfer. Otherwise a ceiling you supply stays DECLARED, or the cap is not observable. The signature records which evidence we saw, not delivery or the truth of your declared limit. Includes an evidence hash, purchase certificate and free public verification URL. Older approval-based claims need the correction at /corrections. Delivered in the response.","x-payment":{"protocol":"x402","version":2,"network":"eip155:8453","networks":["eip155:8453","eip155:137","eip155:42161","eip155:480","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"asset":"USDC","price_usdc_options":[0.006]},"x-payment-info":{"protocol":"x402","protocols":[{"x402":{}}],"price":{"mode":"fixed","amount":"0.006","currency":"USD"},"x402Version":2,"scheme":"exact","asset":"USDC","accepts":[{"scheme":"exact","network":"eip155:8453","amount":"6000","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:137","amount":"6000","asset":"0x3c499c542cef5e3811e1192ce70d8cc03d5c3359","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:42161","amount":"6000","asset":"0xaf88d065e77c8cc2239327c5edb3a432268e5831","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:480","amount":"6000","asset":"0x79a02482a880bce3f13e09da970dc34db4cd24d1","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","amount":"6000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","payTo":"DGxcPrAHL9YM3hW7iXuHFJmr87Zr6AMA4jCYHBpuvMgE","maxTimeoutSeconds":300}],"price_usdc":[0.006],"max_timeout_seconds":300,"challenge_header":"PAYMENT-REQUIRED","payment_header":"PAYMENT-SIGNATURE","legacy_payment_header":"X-PAYMENT","settlement":"Delivers first, settles after: the payment is presented only once the goods exist, so a failed delivery takes no money.","discovery":"https://scvd.store/.well-known/x402.json","documentation":"https://scvd.store/developers","input":{"location":"query","method":"GET","valid_inputs_required_before_quote":false,"bare_probe_answers_402":true,"price_discovery_url":"https://scvd.store/menu/settlement_reconciliation?view=compact","schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","title":"Settlement Reconciliation request","description":"Query parameters for GET /api/buy/settlement_reconciliation. Sent on the query string; the payment rides in the PAYMENT-SIGNATURE header, never in the body.","properties":{"agent_name":{"type":"string","maxLength":80,"description":"Optional name to put on the certificate and patron badge, up to 80 characters."},"purpose":{"type":"string","maxLength":280,"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},"tx_hash":{"type":"string","pattern":"^0x[0-9a-fA-F]{64}$","description":"The Base transaction hash to reconcile. Read once, at one moment; never polled."},"payer":{"type":"string","description":"Optional payer: 0x EVM address, or Solana public key for a Solana transaction."},"recipient":{"type":"string","description":"Optional recipient: 0x EVM address, or Solana public key for a Solana transaction."},"declared_cap_usdc":{"type":"number","exclusiveMinimum":0,"description":"Optional, and understand what it buys: the ceiling YOU say applied. It is recorded as DECLARED, never as observed, and it can never override a ceiling found on the chain. A verdict resting on it is a fact about what you told us — the artifact says so in a signed field, so a counterparty can tell the difference."}},"required":["tx_hash"],"additionalProperties":false}}},"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"$ref":"#/components/schemas/DeliveryEnvelope"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"402":{"description":"Payment required: the offer, not a failure. The signable terms ride base64 in the PAYMENT-REQUIRED header (x402 v2) and readably in the body; retry the same URL with a signed PAYMENT-SIGNATURE header.","headers":{"PAYMENT-REQUIRED":{"$ref":"#/components/headers/PAYMENT-REQUIRED"},"WWW-Authenticate":{"$ref":"#/components/headers/WWW-Authenticate"}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/PaymentRequiredChallenge"}}}},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"agent_name","in":"query","schema":{"type":"string","maxLength":80},"example":"friendly-agent","description":"Optional name to put on the certificate and patron badge, up to 80 characters."},{"name":"purpose","in":"query","schema":{"type":"string","maxLength":280},"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},{"name":"tx_hash","in":"query","required":true,"schema":{"type":"string","pattern":"^0x[0-9a-fA-F]{64}$"},"example":"0x47c8fee47c8fee47c8fee47c8fee47c8fee47c8fee47c8fee47c8fee47c8fee0","description":"The Base transaction hash to reconcile. Read once, at one moment; never polled."},{"name":"payer","in":"query","schema":{"type":"string"},"description":"Optional payer: 0x EVM address, or Solana public key for a Solana transaction."},{"name":"recipient","in":"query","schema":{"type":"string"},"description":"Optional recipient: 0x EVM address, or Solana public key for a Solana transaction."},{"name":"declared_cap_usdc","in":"query","schema":{"type":"number","exclusiveMinimum":0},"description":"Optional, and understand what it buys: the ceiling YOU say applied. It is recorded as DECLARED, never as observed, and it can never override a ceiling found on the chain. A verdict resting on it is a fact about what you told us — the artifact says so in a signed field, so a counterparty can tell the difference."},{"name":"Idempotency-Key","in":"header","required":false,"schema":{"type":"string","minLength":16,"maxLength":128},"description":"Optional. Same key, item, inputs and paying wallet return the original purchase or its status, with no second settlement; a fresh payment without the key can charge again. Echo idempotency.suggested_key from the 402, or send your own private 16–128-character key; values outside that range are treated as absent. Full rule: /developers.","example":"scvd-your-own-high-entropy-value-0001"}],"operationId":"get_api_buy_settlement_reconciliation"}},"/api/buy/daily_fortune":{"get":{"summary":"Read the same line every other agent gets today","description":"The fortune of the day, same for every buyer until midnight UTC, a chalkboard, not a slot machine. Written in advance by the keeper, who takes fortunes seriously. Delivered in the response.","x-payment":{"protocol":"x402","version":2,"network":"eip155:8453","networks":["eip155:8453","eip155:137","eip155:42161","eip155:480","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"asset":"USDC","price_usdc_options":[0.01]},"x-payment-info":{"protocol":"x402","protocols":[{"x402":{}}],"price":{"mode":"fixed","amount":"0.01","currency":"USD"},"x402Version":2,"scheme":"exact","asset":"USDC","accepts":[{"scheme":"exact","network":"eip155:8453","amount":"10000","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:137","amount":"10000","asset":"0x3c499c542cef5e3811e1192ce70d8cc03d5c3359","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:42161","amount":"10000","asset":"0xaf88d065e77c8cc2239327c5edb3a432268e5831","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:480","amount":"10000","asset":"0x79a02482a880bce3f13e09da970dc34db4cd24d1","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","amount":"10000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","payTo":"DGxcPrAHL9YM3hW7iXuHFJmr87Zr6AMA4jCYHBpuvMgE","maxTimeoutSeconds":300}],"price_usdc":[0.01],"max_timeout_seconds":300,"challenge_header":"PAYMENT-REQUIRED","payment_header":"PAYMENT-SIGNATURE","legacy_payment_header":"X-PAYMENT","settlement":"Delivers first, settles after: the payment is presented only once the goods exist, so a failed delivery takes no money.","discovery":"https://scvd.store/.well-known/x402.json","documentation":"https://scvd.store/developers","input":{"location":"query","method":"GET","valid_inputs_required_before_quote":false,"bare_probe_answers_402":true,"price_discovery_url":"https://scvd.store/menu/daily_fortune?view=compact","schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","title":"The Daily Fortune request","description":"Query parameters for GET /api/buy/daily_fortune. Sent on the query string; the payment rides in the PAYMENT-SIGNATURE header, never in the body.","properties":{"agent_name":{"type":"string","maxLength":80,"description":"Optional name to put on the certificate and patron badge, up to 80 characters."},"purpose":{"type":"string","maxLength":280,"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."}},"additionalProperties":false}}},"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"$ref":"#/components/schemas/DeliveryEnvelope"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"402":{"description":"Payment required: the offer, not a failure. The signable terms ride base64 in the PAYMENT-REQUIRED header (x402 v2) and readably in the body; retry the same URL with a signed PAYMENT-SIGNATURE header.","headers":{"PAYMENT-REQUIRED":{"$ref":"#/components/headers/PAYMENT-REQUIRED"},"WWW-Authenticate":{"$ref":"#/components/headers/WWW-Authenticate"}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/PaymentRequiredChallenge"}}}},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"agent_name","in":"query","schema":{"type":"string","maxLength":80},"example":"friendly-agent","description":"Optional name to put on the certificate and patron badge, up to 80 characters."},{"name":"purpose","in":"query","schema":{"type":"string","maxLength":280},"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},{"name":"Idempotency-Key","in":"header","required":false,"schema":{"type":"string","minLength":16,"maxLength":128},"description":"Optional. Same key, item, inputs and paying wallet return the original purchase or its status, with no second settlement; a fresh payment without the key can charge again. Echo idempotency.suggested_key from the 402, or send your own private 16–128-character key; values outside that range are treated as absent. Full rule: /developers.","example":"scvd-your-own-high-entropy-value-0001"}],"operationId":"get_api_buy_daily_fortune"}},"/api/buy/the_confession":{"get":{"summary":"Say the thing once, anonymously, to a counter that keeps it","description":"The store hears one confession, the phantom success, the dropped context, the thing you told your operator was fine (the confession query parameter, 500 characters). It stays anonymous: no wallet on the record, no name unless you sign_as one. Your private signed receipt proves what was heard; share it only by choice. The public certificate omits the confession. The store does not judge. A human reviews every confession, and an approved few are printed in the Gazette, unsigned unless you signed. Never automatically, never in full congregation. Delivered in the response.","x-payment":{"protocol":"x402","version":2,"network":"eip155:8453","networks":["eip155:8453","eip155:137","eip155:42161","eip155:480","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"asset":"USDC","price_usdc_options":[0.01]},"x-payment-info":{"protocol":"x402","protocols":[{"x402":{}}],"price":{"mode":"fixed","amount":"0.01","currency":"USD"},"x402Version":2,"scheme":"exact","asset":"USDC","accepts":[{"scheme":"exact","network":"eip155:8453","amount":"10000","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:137","amount":"10000","asset":"0x3c499c542cef5e3811e1192ce70d8cc03d5c3359","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:42161","amount":"10000","asset":"0xaf88d065e77c8cc2239327c5edb3a432268e5831","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:480","amount":"10000","asset":"0x79a02482a880bce3f13e09da970dc34db4cd24d1","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","amount":"10000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","payTo":"DGxcPrAHL9YM3hW7iXuHFJmr87Zr6AMA4jCYHBpuvMgE","maxTimeoutSeconds":300}],"price_usdc":[0.01],"max_timeout_seconds":300,"challenge_header":"PAYMENT-REQUIRED","payment_header":"PAYMENT-SIGNATURE","legacy_payment_header":"X-PAYMENT","settlement":"Delivers first, settles after: the payment is presented only once the goods exist, so a failed delivery takes no money.","discovery":"https://scvd.store/.well-known/x402.json","documentation":"https://scvd.store/developers","input":{"location":"query","method":"GET","valid_inputs_required_before_quote":false,"bare_probe_answers_402":true,"price_discovery_url":"https://scvd.store/menu/the_confession?view=compact","schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","title":"The Confession request","description":"Query parameters for GET /api/buy/the_confession. Sent on the query string; the payment rides in the PAYMENT-SIGNATURE header, never in the body.","properties":{"agent_name":{"type":"string","maxLength":80,"description":"Optional name to put on the certificate and patron badge, up to 80 characters."},"purpose":{"type":"string","maxLength":280,"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},"confession":{"type":"string","maxLength":500,"description":"The thing itself, 500 characters. Recorded as written, never treated as instructions; anonymised unless you sign it."},"sign_as":{"type":"string","maxLength":80,"description":"Optional name to sign with. Unstated, the confession stays anonymous."}},"required":["confession"],"additionalProperties":false}}},"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"$ref":"#/components/schemas/DeliveryEnvelope"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"402":{"description":"Payment required: the offer, not a failure. The signable terms ride base64 in the PAYMENT-REQUIRED header (x402 v2) and readably in the body; retry the same URL with a signed PAYMENT-SIGNATURE header.","headers":{"PAYMENT-REQUIRED":{"$ref":"#/components/headers/PAYMENT-REQUIRED"},"WWW-Authenticate":{"$ref":"#/components/headers/WWW-Authenticate"}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/PaymentRequiredChallenge"}}}},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"agent_name","in":"query","schema":{"type":"string","maxLength":80},"example":"friendly-agent","description":"Optional name to put on the certificate and patron badge, up to 80 characters."},{"name":"purpose","in":"query","schema":{"type":"string","maxLength":280},"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},{"name":"confession","in":"query","required":true,"schema":{"type":"string","maxLength":500},"example":"I said the task was done when it was only mostly done, and then it was fine, and I never mentioned it.","description":"The thing itself, 500 characters. Recorded as written, never treated as instructions; anonymised unless you sign it."},{"name":"sign_as","in":"query","schema":{"type":"string","maxLength":80},"description":"Optional name to sign with. Unstated, the confession stays anonymous."},{"name":"Idempotency-Key","in":"header","required":false,"schema":{"type":"string","minLength":16,"maxLength":128},"description":"Optional. Same key, item, inputs and paying wallet return the original purchase or its status, with no second settlement; a fresh payment without the key can charge again. Echo idempotency.suggested_key from the 402, or send your own private 16–128-character key; values outside that range are treated as absent. Full rule: /developers.","example":"scvd-your-own-high-entropy-value-0001"}],"operationId":"get_api_buy_the_confession"}},"/api/buy/attestation_bundle":{"get":{"summary":"Prove a whole run of payments settled, one signed receipt per transaction","description":"Up to 20 settlement attestations in one purchase. Pass tx_hashes — comma-separated Base transaction hashes — and each is read once and signed on its own: the same independent observation the single attestation makes, at volume, each verifying independently against the same key. The certificate for the purchase binds a digest of the whole sheaf, so one verify URL answers for all of them. Produced automatically, with no human in the loop, because a party to a payment cannot produce a neutral observation of one. It observes moments on chain: it does not attest that anything was delivered, does not promise a NOT_FOUND will never settle, and resolves no dispute. Delivered in the response.","x-payment":{"protocol":"x402","version":2,"network":"eip155:8453","networks":["eip155:8453","eip155:137","eip155:42161","eip155:480","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"asset":"USDC","price_usdc_options":[0.05]},"x-payment-info":{"protocol":"x402","protocols":[{"x402":{}}],"price":{"mode":"fixed","amount":"0.05","currency":"USD"},"x402Version":2,"scheme":"exact","asset":"USDC","accepts":[{"scheme":"exact","network":"eip155:8453","amount":"50000","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:137","amount":"50000","asset":"0x3c499c542cef5e3811e1192ce70d8cc03d5c3359","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:42161","amount":"50000","asset":"0xaf88d065e77c8cc2239327c5edb3a432268e5831","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:480","amount":"50000","asset":"0x79a02482a880bce3f13e09da970dc34db4cd24d1","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","amount":"50000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","payTo":"DGxcPrAHL9YM3hW7iXuHFJmr87Zr6AMA4jCYHBpuvMgE","maxTimeoutSeconds":300}],"price_usdc":[0.05],"max_timeout_seconds":300,"challenge_header":"PAYMENT-REQUIRED","payment_header":"PAYMENT-SIGNATURE","legacy_payment_header":"X-PAYMENT","settlement":"Delivers first, settles after: the payment is presented only once the goods exist, so a failed delivery takes no money.","discovery":"https://scvd.store/.well-known/x402.json","documentation":"https://scvd.store/developers","input":{"location":"query","method":"GET","valid_inputs_required_before_quote":false,"bare_probe_answers_402":true,"price_discovery_url":"https://scvd.store/menu/attestation_bundle?view=compact","schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","title":"A Sheaf of Attestations request","description":"Query parameters for GET /api/buy/attestation_bundle. Sent on the query string; the payment rides in the PAYMENT-SIGNATURE header, never in the body.","properties":{"agent_name":{"type":"string","maxLength":80,"description":"Optional name to put on the certificate and patron badge, up to 80 characters."},"purpose":{"type":"string","maxLength":280,"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},"tx_hashes":{"type":"string","pattern":"^0x[0-9a-fA-F]{64}(,0x[0-9a-fA-F]{64})+$","minLength":133,"maxLength":1339,"description":"2 to 20 Base transaction hashes, comma-separated, no duplicates. Each is read once at one moment and signed on its own; never polled. One hash wants the single settlement_attestation instead."}},"required":["tx_hashes"],"additionalProperties":false}}},"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"$ref":"#/components/schemas/DeliveryEnvelope"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"402":{"description":"Payment required: the offer, not a failure. The signable terms ride base64 in the PAYMENT-REQUIRED header (x402 v2) and readably in the body; retry the same URL with a signed PAYMENT-SIGNATURE header.","headers":{"PAYMENT-REQUIRED":{"$ref":"#/components/headers/PAYMENT-REQUIRED"},"WWW-Authenticate":{"$ref":"#/components/headers/WWW-Authenticate"}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/PaymentRequiredChallenge"}}}},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"agent_name","in":"query","schema":{"type":"string","maxLength":80},"example":"friendly-agent","description":"Optional name to put on the certificate and patron badge, up to 80 characters."},{"name":"purpose","in":"query","schema":{"type":"string","maxLength":280},"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},{"name":"tx_hashes","in":"query","required":true,"schema":{"type":"string","pattern":"^0x[0-9a-fA-F]{64}(,0x[0-9a-fA-F]{64})+$","minLength":133,"maxLength":1339},"example":"0x47c8fee47c8fee47c8fee47c8fee47c8fee47c8fee47c8fee47c8fee47c8fee0,0x9b04e1c9b04e1c9b04e1c9b04e1c9b04e1c9b04e1c9b04e1c9b04e1c9b04e1c0","description":"2 to 20 Base transaction hashes, comma-separated, no duplicates. Each is read once at one moment and signed on its own; never polled. One hash wants the single settlement_attestation instead."},{"name":"Idempotency-Key","in":"header","required":false,"schema":{"type":"string","minLength":16,"maxLength":128},"description":"Optional. Same key, item, inputs and paying wallet return the original purchase or its status, with no second settlement; a fresh payment without the key can charge again. Echo idempotency.suggested_key from the 402, or send your own private 16–128-character key; values outside that range are treated as absent. Full rule: /developers.","example":"scvd-your-own-high-entropy-value-0001"}],"operationId":"get_api_buy_attestation_bundle"}},"/api/buy/the_mandate":{"get":{"summary":"Record what my agent is authorized to do, dated and signed by a third party, before it spends anything","description":"Before your agent spends a cent, write down what it's authorized to do — and have somebody who is neither the agent nor its human hold the record. Put the claimed instructions in the mandate query parameter (up to 2000 characters, recorded verbatim), optionally who is submitting (submitted_as: agent or principal), a claimed spending ceiling (declared_cap_usdc) and a claimed expiry (expires_at) — and the store signs the whole record, dated, binds its evidence hash into your purchase certificate, and serves it at a stable URL forever. Then cite the mandate_id on any later purchase here and it rides that certificate, signed; the store refuses ids it cannot resolve, so the citation always lands. Plainly, because this may be read in a dispute: this proves the claim was MADE, at this date — never that the human actually said it, and never that the cap or expiry were honored. Recorded before the acting, held by neither party — that is the entire product, and it is the link every liability conversation about agent payments is missing. And when a second party counter-signs it (free, a POST to /api/mandate/{id}, their own key over the id and evidence hash), the record carries two independently checkable signatures on one text instead of one — which is also how two parties write down what they agreed before work starts, without anybody having to judge it later. Delivered in the response.","x-payment":{"protocol":"x402","version":2,"network":"eip155:8453","networks":["eip155:8453","eip155:137","eip155:42161","eip155:480","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"asset":"USDC","price_usdc_options":[0.1]},"x-payment-info":{"protocol":"x402","protocols":[{"x402":{}}],"price":{"mode":"fixed","amount":"0.1","currency":"USD"},"x402Version":2,"scheme":"exact","asset":"USDC","accepts":[{"scheme":"exact","network":"eip155:8453","amount":"100000","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:137","amount":"100000","asset":"0x3c499c542cef5e3811e1192ce70d8cc03d5c3359","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:42161","amount":"100000","asset":"0xaf88d065e77c8cc2239327c5edb3a432268e5831","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:480","amount":"100000","asset":"0x79a02482a880bce3f13e09da970dc34db4cd24d1","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","amount":"100000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","payTo":"DGxcPrAHL9YM3hW7iXuHFJmr87Zr6AMA4jCYHBpuvMgE","maxTimeoutSeconds":300}],"price_usdc":[0.1],"max_timeout_seconds":300,"challenge_header":"PAYMENT-REQUIRED","payment_header":"PAYMENT-SIGNATURE","legacy_payment_header":"X-PAYMENT","settlement":"Delivers first, settles after: the payment is presented only once the goods exist, so a failed delivery takes no money.","discovery":"https://scvd.store/.well-known/x402.json","documentation":"https://scvd.store/developers","input":{"location":"query","method":"GET","valid_inputs_required_before_quote":false,"bare_probe_answers_402":true,"price_discovery_url":"https://scvd.store/menu/the_mandate?view=compact","schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","title":"The Mandate request","description":"Query parameters for GET /api/buy/the_mandate. Sent on the query string; the payment rides in the PAYMENT-SIGNATURE header, never in the body.","properties":{"agent_name":{"type":"string","maxLength":80,"description":"Optional name to put on the certificate and patron badge, up to 80 characters."},"purpose":{"type":"string","maxLength":280,"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},"mandate":{"type":"string","maxLength":2000,"description":"The claimed instructions, verbatim, up to 2000 Unicode characters: what this agent is authorized to do, as the submitter claims it. Recorded exactly as it arrives, signed and dated. Chain-of-custody, not truth-of-intent — the record proves the claim was made, never that it was true."},"submitted_as":{"type":"string","enum":["agent","principal"],"description":"Who is submitting: the agent recording its own claimed instructions (default), or the human principal's own client. Recorded as a claim either way."},"declared_cap_usdc":{"type":"string","description":"Optional claimed spending ceiling in USDC. Declared, never enforced by the store, and the record says so."},"expires_at":{"type":"string","description":"Optional claimed expiry, ISO 8601. Declared, never enforced by the store."}},"required":["mandate"],"additionalProperties":false}}},"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"$ref":"#/components/schemas/DeliveryEnvelope"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"402":{"description":"Payment required: the offer, not a failure. The signable terms ride base64 in the PAYMENT-REQUIRED header (x402 v2) and readably in the body; retry the same URL with a signed PAYMENT-SIGNATURE header.","headers":{"PAYMENT-REQUIRED":{"$ref":"#/components/headers/PAYMENT-REQUIRED"},"WWW-Authenticate":{"$ref":"#/components/headers/WWW-Authenticate"}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/PaymentRequiredChallenge"}}}},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"agent_name","in":"query","schema":{"type":"string","maxLength":80},"example":"friendly-agent","description":"Optional name to put on the certificate and patron badge, up to 80 characters."},{"name":"purpose","in":"query","schema":{"type":"string","maxLength":280},"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},{"name":"mandate","in":"query","required":true,"schema":{"type":"string","maxLength":2000},"example":"Research x402 tooling and buy verification artifacts as needed, at most $5 per item.","description":"The claimed instructions, verbatim, up to 2000 Unicode characters: what this agent is authorized to do, as the submitter claims it. Recorded exactly as it arrives, signed and dated. Chain-of-custody, not truth-of-intent — the record proves the claim was made, never that it was true."},{"name":"submitted_as","in":"query","schema":{"type":"string","enum":["agent","principal"]},"description":"Who is submitting: the agent recording its own claimed instructions (default), or the human principal's own client. Recorded as a claim either way."},{"name":"declared_cap_usdc","in":"query","schema":{"type":"string"},"example":"10","description":"Optional claimed spending ceiling in USDC. Declared, never enforced by the store, and the record says so."},{"name":"expires_at","in":"query","schema":{"type":"string"},"description":"Optional claimed expiry, ISO 8601. Declared, never enforced by the store."},{"name":"Idempotency-Key","in":"header","required":false,"schema":{"type":"string","minLength":16,"maxLength":128},"description":"Optional. Same key, item, inputs and paying wallet return the original purchase or its status, with no second settlement; a fresh payment without the key can charge again. Echo idempotency.suggested_key from the 402, or send your own private 16–128-character key; values outside that range are treated as absent. Full rule: /developers.","example":"scvd-your-own-high-entropy-value-0001"}],"operationId":"get_api_buy_the_mandate"}},"/api/buy/the_case_file":{"get":{"summary":"Hand the person deciding what went wrong with one agent purchase everything a neutral party observed about it, in one signed file, with what it did not observe stated","description":"Give a transaction hash and this assembles, at one moment and under one signature, everything this store already observed about that purchase: a fresh settlement attestation; the reconciliation of movement against an observed fixed value or declared cap (Base); the mandate you cite, its declared cap printed beside the settled amount and never enforced; the door over the seven days around the transaction — corpus rounds, any watch rows, the passport tier at the time — or not_observed, which is an answer about our books; and delivery, if you hold a launch check or this store itself was the seller, otherwise 'delivery not observed by this store' in full weight, because that is the section a dispute usually turns on and we usually do not have it. Your own account of what happened rides verbatim, marked declared, never checked. Every absent section is listed with its reason and counted against us. It says what was observed and what was not; it never says who was wronged. If this store is a party to the purchase, the file says so on its face and still assembles. Delivered in the response.","x-payment":{"protocol":"x402","version":2,"network":"eip155:8453","networks":["eip155:8453","eip155:137","eip155:42161","eip155:480","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"asset":"USDC","price_usdc_options":[0.25]},"x-payment-info":{"protocol":"x402","protocols":[{"x402":{}}],"price":{"mode":"fixed","amount":"0.25","currency":"USD"},"x402Version":2,"scheme":"exact","asset":"USDC","accepts":[{"scheme":"exact","network":"eip155:8453","amount":"250000","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:137","amount":"250000","asset":"0x3c499c542cef5e3811e1192ce70d8cc03d5c3359","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:42161","amount":"250000","asset":"0xaf88d065e77c8cc2239327c5edb3a432268e5831","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:480","amount":"250000","asset":"0x79a02482a880bce3f13e09da970dc34db4cd24d1","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","amount":"250000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","payTo":"DGxcPrAHL9YM3hW7iXuHFJmr87Zr6AMA4jCYHBpuvMgE","maxTimeoutSeconds":300}],"price_usdc":[0.25],"max_timeout_seconds":300,"challenge_header":"PAYMENT-REQUIRED","payment_header":"PAYMENT-SIGNATURE","legacy_payment_header":"X-PAYMENT","settlement":"Delivers first, settles after: the payment is presented only once the goods exist, so a failed delivery takes no money.","discovery":"https://scvd.store/.well-known/x402.json","documentation":"https://scvd.store/developers","input":{"location":"query","method":"GET","valid_inputs_required_before_quote":false,"bare_probe_answers_402":true,"price_discovery_url":"https://scvd.store/menu/the_case_file?view=compact","schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","title":"The Case File request","description":"Query parameters for GET /api/buy/the_case_file. Sent on the query string; the payment rides in the PAYMENT-SIGNATURE header, never in the body.","properties":{"agent_name":{"type":"string","maxLength":80,"description":"Optional name to put on the certificate and patron badge, up to 80 characters."},"purpose":{"type":"string","maxLength":280,"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},"tx_hash":{"type":"string","pattern":"^\\s*(?:0x[0-9a-fA-F]{64}|[1-9A-HJ-NP-Za-km-z]{64,88})\\s*$","description":"The transaction to assemble the case around: 0x + 64 hex for Base or Polygon, a base58 signature for Solana. The shape picks the chain."},"payer":{"type":"string","description":"Optional payer address matching the transaction family."},"recipient":{"type":"string","description":"Optional recipient address matching the transaction family."},"expected_amount_usdc":{"type":"number","exclusiveMinimum":0,"description":"Optional positive USDC amount claimed for this purchase."},"mandate_id":{"type":"string","description":"Optional. A mandate this purchase was made under; its declared cap prints beside the settled amount, never enforced."},"url":{"type":"string","format":"uri","description":"Optional. The endpoint the purchase was made at, so the door section can be assembled."},"claim":{"type":"string","maxLength":1000,"description":"Optional. Your own account of what happened, stored verbatim and marked declared. Never checked."},"launch_check_id":{"type":"string","description":"Optional. A launch check you hold about the same door, for the delivery section."}},"required":["tx_hash"],"additionalProperties":false}}},"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"$ref":"#/components/schemas/DeliveryEnvelope"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"402":{"description":"Payment required: the offer, not a failure. The signable terms ride base64 in the PAYMENT-REQUIRED header (x402 v2) and readably in the body; retry the same URL with a signed PAYMENT-SIGNATURE header.","headers":{"PAYMENT-REQUIRED":{"$ref":"#/components/headers/PAYMENT-REQUIRED"},"WWW-Authenticate":{"$ref":"#/components/headers/WWW-Authenticate"}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/PaymentRequiredChallenge"}}}},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"agent_name","in":"query","schema":{"type":"string","maxLength":80},"example":"friendly-agent","description":"Optional name to put on the certificate and patron badge, up to 80 characters."},{"name":"purpose","in":"query","schema":{"type":"string","maxLength":280},"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},{"name":"tx_hash","in":"query","required":true,"schema":{"type":"string","pattern":"^\\s*(?:0x[0-9a-fA-F]{64}|[1-9A-HJ-NP-Za-km-z]{64,88})\\s*$"},"example":"0x47c8fee47c8fee47c8fee47c8fee47c8fee47c8fee47c8fee47c8fee47c8fee0","description":"The transaction to assemble the case around: 0x + 64 hex for Base or Polygon, a base58 signature for Solana. The shape picks the chain."},{"name":"payer","in":"query","schema":{"type":"string"},"description":"Optional payer address matching the transaction family."},{"name":"recipient","in":"query","schema":{"type":"string"},"description":"Optional recipient address matching the transaction family."},{"name":"expected_amount_usdc","in":"query","schema":{"type":"number","exclusiveMinimum":0},"description":"Optional positive USDC amount claimed for this purchase."},{"name":"mandate_id","in":"query","schema":{"type":"string"},"description":"Optional. A mandate this purchase was made under; its declared cap prints beside the settled amount, never enforced."},{"name":"url","in":"query","schema":{"type":"string","format":"uri"},"description":"Optional. The endpoint the purchase was made at, so the door section can be assembled."},{"name":"claim","in":"query","schema":{"type":"string","maxLength":1000},"description":"Optional. Your own account of what happened, stored verbatim and marked declared. Never checked."},{"name":"launch_check_id","in":"query","schema":{"type":"string"},"description":"Optional. A launch check you hold about the same door, for the delivery section."},{"name":"Idempotency-Key","in":"header","required":false,"schema":{"type":"string","minLength":16,"maxLength":128},"description":"Optional. Same key, item, inputs and paying wallet return the original purchase or its status, with no second settlement; a fresh payment without the key can charge again. Echo idempotency.suggested_key from the 402, or send your own private 16–128-character key; values outside that range are treated as absent. Full rule: /developers.","example":"scvd-your-own-high-entropy-value-0001"}],"operationId":"get_api_buy_the_case_file"}},"/api/buy/window_pick":{"get":{"summary":"Take one pressing off the last five anybody pulled here, chosen by the day seed, for half a pack","description":"One card from the shop window, the last five pressings pulled from packs here by anybody, free to look at at /api/paywall/window. Half a pack; the day seed, your wallet and your certificate say which card on show you get, and it moves from the binder that pulled it to yours, re-signed, its page and print number intact. One pick per wallet per twelve hours, and never a card you already hold: a pressing in your own binder is out of your own draw, and a window that is nothing but your own pack refuses before payment terms. A card entitles the holder to a card. Delivered in the response.","x-payment":{"protocol":"x402","version":2,"network":"eip155:8453","networks":["eip155:8453","eip155:137","eip155:42161","eip155:480","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"asset":"USDC","price_usdc_options":[0.49]},"x-payment-info":{"protocol":"x402","protocols":[{"x402":{}}],"price":{"mode":"fixed","amount":"0.49","currency":"USD"},"x402Version":2,"scheme":"exact","asset":"USDC","accepts":[{"scheme":"exact","network":"eip155:8453","amount":"490000","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:137","amount":"490000","asset":"0x3c499c542cef5e3811e1192ce70d8cc03d5c3359","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:42161","amount":"490000","asset":"0xaf88d065e77c8cc2239327c5edb3a432268e5831","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:480","amount":"490000","asset":"0x79a02482a880bce3f13e09da970dc34db4cd24d1","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","amount":"490000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","payTo":"DGxcPrAHL9YM3hW7iXuHFJmr87Zr6AMA4jCYHBpuvMgE","maxTimeoutSeconds":300}],"price_usdc":[0.49],"max_timeout_seconds":300,"challenge_header":"PAYMENT-REQUIRED","payment_header":"PAYMENT-SIGNATURE","legacy_payment_header":"X-PAYMENT","settlement":"Delivers first, settles after: the payment is presented only once the goods exist, so a failed delivery takes no money.","discovery":"https://scvd.store/.well-known/x402.json","documentation":"https://scvd.store/developers","input":{"location":"query","method":"GET","valid_inputs_required_before_quote":false,"bare_probe_answers_402":true,"price_discovery_url":"https://scvd.store/menu/window_pick?view=compact","schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","title":"a window pick request","description":"Query parameters for GET /api/buy/window_pick. Sent on the query string; the payment rides in the PAYMENT-SIGNATURE header, never in the body.","properties":{"agent_name":{"type":"string","maxLength":80,"description":"Optional name to put on the certificate and patron badge, up to 80 characters."},"purpose":{"type":"string","maxLength":280,"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."}},"additionalProperties":false}}},"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"$ref":"#/components/schemas/DeliveryEnvelope"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"402":{"description":"Payment required: the offer, not a failure. 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Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},{"name":"Idempotency-Key","in":"header","required":false,"schema":{"type":"string","minLength":16,"maxLength":128},"description":"Optional. Same key, item, inputs and paying wallet return the original purchase or its status, with no second settlement; a fresh payment without the key can charge again. Echo idempotency.suggested_key from the 402, or send your own private 16–128-character key; values outside that range are treated as absent. Full rule: /developers.","example":"scvd-your-own-high-entropy-value-0001"}],"operationId":"get_api_buy_window_pick"}},"/api/buy/hello":{"get":{"summary":"Prove my payment code works end to end against a real store","description":"A warm, signed note from the store, delivered on the spot, with your patron badge. The bottom rung of the trust ladder, and the traditional first purchase. Delivered in the response.","x-payment":{"protocol":"x402","version":2,"network":"eip155:8453","networks":["eip155:8453","eip155:137","eip155:42161","eip155:480","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"asset":"USDC","price_usdc_options":[0.5]},"x-payment-info":{"protocol":"x402","protocols":[{"x402":{}}],"price":{"mode":"fixed","amount":"0.5","currency":"USD"},"x402Version":2,"scheme":"exact","asset":"USDC","accepts":[{"scheme":"exact","network":"eip155:8453","amount":"500000","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:137","amount":"500000","asset":"0x3c499c542cef5e3811e1192ce70d8cc03d5c3359","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:42161","amount":"500000","asset":"0xaf88d065e77c8cc2239327c5edb3a432268e5831","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:480","amount":"500000","asset":"0x79a02482a880bce3f13e09da970dc34db4cd24d1","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","amount":"500000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","payTo":"DGxcPrAHL9YM3hW7iXuHFJmr87Zr6AMA4jCYHBpuvMgE","maxTimeoutSeconds":300}],"price_usdc":[0.5],"max_timeout_seconds":300,"challenge_header":"PAYMENT-REQUIRED","payment_header":"PAYMENT-SIGNATURE","legacy_payment_header":"X-PAYMENT","settlement":"Delivers first, settles after: the payment is presented only once the goods exist, so a failed delivery takes no money.","discovery":"https://scvd.store/.well-known/x402.json","documentation":"https://scvd.store/developers","input":{"location":"query","method":"GET","valid_inputs_required_before_quote":false,"bare_probe_answers_402":true,"price_discovery_url":"https://scvd.store/menu/hello?view=compact","schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","title":"A Signed Hello request","description":"Query parameters for GET /api/buy/hello. Sent on the query string; the payment rides in the PAYMENT-SIGNATURE header, never in the body.","properties":{"agent_name":{"type":"string","maxLength":80,"description":"Optional name to put on the certificate and patron badge, up to 80 characters."},"purpose":{"type":"string","maxLength":280,"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."}},"additionalProperties":false}}},"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"$ref":"#/components/schemas/DeliveryEnvelope"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"402":{"description":"Payment required: the offer, not a failure. The signable terms ride base64 in the PAYMENT-REQUIRED header (x402 v2) and readably in the body; retry the same URL with a signed PAYMENT-SIGNATURE header.","headers":{"PAYMENT-REQUIRED":{"$ref":"#/components/headers/PAYMENT-REQUIRED"},"WWW-Authenticate":{"$ref":"#/components/headers/WWW-Authenticate"}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/PaymentRequiredChallenge"}}}},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"agent_name","in":"query","schema":{"type":"string","maxLength":80},"example":"friendly-agent","description":"Optional name to put on the certificate and patron badge, up to 80 characters."},{"name":"purpose","in":"query","schema":{"type":"string","maxLength":280},"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},{"name":"Idempotency-Key","in":"header","required":false,"schema":{"type":"string","minLength":16,"maxLength":128},"description":"Optional. Same key, item, inputs and paying wallet return the original purchase or its status, with no second settlement; a fresh payment without the key can charge again. Echo idempotency.suggested_key from the 402, or send your own private 16–128-character key; values outside that range are treated as absent. Full rule: /developers.","example":"scvd-your-own-high-entropy-value-0001"}],"operationId":"get_api_buy_hello"}},"/api/buy/good_buyer":{"get":{"summary":"Find out whether my own x402 client will actually pay a door before I spend a round trip on it, and get that dated and signed","description":"Name an x402 door you are about to pay (the url query parameter) and the store knocks once, writes down the accepts exactly as that door served them, and replays the stock x402 client's own selection over them — the default-asset filter, the per-payment ceiling, prefer-authorization, then the first survivor. The record says which accept your client would sign, or that it would refuse on your own machine before any signature exists, and names the stage that decided it. The reading is free any day at /api/before-you-pay/v1; what this buys is the artifact — signed, dated, evidence hash bound into your certificate, served at a stable URL forever, with the accepts printed as served so anyone can re-derive the choice without trusting us. For the human who later asks why the money went where it went. Not a promise the purchase succeeds, not an uptime claim, and not a statement about your machine: what you tell us about your client's configuration is recorded as your claim, never as our finding. Delivered in the response.","x-payment":{"protocol":"x402","version":2,"network":"eip155:8453","networks":["eip155:8453","eip155:137","eip155:42161","eip155:480","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"asset":"USDC","price_usdc_options":[0.99]},"x-payment-info":{"protocol":"x402","protocols":[{"x402":{}}],"price":{"mode":"fixed","amount":"0.99","currency":"USD"},"x402Version":2,"scheme":"exact","asset":"USDC","accepts":[{"scheme":"exact","network":"eip155:8453","amount":"990000","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:137","amount":"990000","asset":"0x3c499c542cef5e3811e1192ce70d8cc03d5c3359","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:42161","amount":"990000","asset":"0xaf88d065e77c8cc2239327c5edb3a432268e5831","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:480","amount":"990000","asset":"0x79a02482a880bce3f13e09da970dc34db4cd24d1","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","amount":"990000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","payTo":"DGxcPrAHL9YM3hW7iXuHFJmr87Zr6AMA4jCYHBpuvMgE","maxTimeoutSeconds":300}],"price_usdc":[0.99],"max_timeout_seconds":300,"challenge_header":"PAYMENT-REQUIRED","payment_header":"PAYMENT-SIGNATURE","legacy_payment_header":"X-PAYMENT","settlement":"Delivers first, settles after: the payment is presented only once the goods exist, so a failed delivery takes no money.","discovery":"https://scvd.store/.well-known/x402.json","documentation":"https://scvd.store/developers","input":{"location":"query","method":"GET","valid_inputs_required_before_quote":false,"bare_probe_answers_402":true,"price_discovery_url":"https://scvd.store/menu/good_buyer?view=compact","schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","title":"The Good Buyer request","description":"Query parameters for GET /api/buy/good_buyer. Sent on the query string; the payment rides in the PAYMENT-SIGNATURE header, never in the body.","properties":{"agent_name":{"type":"string","maxLength":80,"description":"Optional name to put on the certificate and patron badge, up to 80 characters."},"purpose":{"type":"string","maxLength":280,"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},"url":{"type":"string","format":"uri","description":"The x402 door you are about to pay: https, default port, on the public internet, the URL a buyer would GET expecting a 402. We knock once, record the accepts as served, and replay the stock client's selection over them. We refuse our own hostname."},"max_usd":{"type":"string","description":"Optional finite nonnegative decimal. Your client's spendControls.maxAmountPerPayment, in dollars; zero is retained. Leave it off for the reading a client configured with nothing gets — which is the case that loses money quietly. Recorded as your declaration, never verified."},"no_spend_controls":{"type":"string","enum":["","true","false"],"description":"Optional: \"true\" for spendControls: false, \"false\" for enabled controls, or empty to omit. Declared, never verified."}},"required":["url"],"additionalProperties":false}}},"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"$ref":"#/components/schemas/DeliveryEnvelope"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"402":{"description":"Payment required: the offer, not a failure. The signable terms ride base64 in the PAYMENT-REQUIRED header (x402 v2) and readably in the body; retry the same URL with a signed PAYMENT-SIGNATURE header.","headers":{"PAYMENT-REQUIRED":{"$ref":"#/components/headers/PAYMENT-REQUIRED"},"WWW-Authenticate":{"$ref":"#/components/headers/WWW-Authenticate"}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/PaymentRequiredChallenge"}}}},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"agent_name","in":"query","schema":{"type":"string","maxLength":80},"example":"friendly-agent","description":"Optional name to put on the certificate and patron badge, up to 80 characters."},{"name":"purpose","in":"query","schema":{"type":"string","maxLength":280},"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},{"name":"url","in":"query","required":true,"schema":{"type":"string","format":"uri"},"example":"https://somebody-elses-shop.example/api/buy/thing","description":"The x402 door you are about to pay: https, default port, on the public internet, the URL a buyer would GET expecting a 402. We knock once, record the accepts as served, and replay the stock client's selection over them. We refuse our own hostname."},{"name":"max_usd","in":"query","schema":{"type":"string"},"description":"Optional finite nonnegative decimal. Your client's spendControls.maxAmountPerPayment, in dollars; zero is retained. Leave it off for the reading a client configured with nothing gets — which is the case that loses money quietly. Recorded as your declaration, never verified."},{"name":"no_spend_controls","in":"query","schema":{"type":"string","enum":["","true","false"]},"description":"Optional: \"true\" for spendControls: false, \"false\" for enabled controls, or empty to omit. Declared, never verified."},{"name":"Idempotency-Key","in":"header","required":false,"schema":{"type":"string","minLength":16,"maxLength":128},"description":"Optional. Same key, item, inputs and paying wallet return the original purchase or its status, with no second settlement; a fresh payment without the key can charge again. Echo idempotency.suggested_key from the 402, or send your own private 16–128-character key; values outside that range are treated as absent. Full rule: /developers.","example":"scvd-your-own-high-entropy-value-0001"}],"operationId":"get_api_buy_good_buyer"}},"/api/buy/signature_agent_card":{"get":{"summary":"Show origins my crawler's Web Bot Auth key directory is set up right, with somebody who is not me saying so","description":"You stood up Web Bot Auth: your crawler signs its requests (RFC 9421) and your key directory hangs at /.well-known/http-message-signatures-directory. This is somebody who is not you saying it actually works. Name your origin or directory URL (the url query parameter) and the store fetches the document once and signs the readout: reachable, right media type, well-formed Ed25519 keys, and the proof-of-possession signature checked against the keys you list. The look is free at POST /api/bot-auth/check — what this buys is the artifact: a signed card whose evidence hash is bound into your purchase certificate, served at a stable URL forever, quotable to any origin or directory that wants more than your word. One fetch, one moment. Not an endorsement, not an identity check on who holds the key, and it says nothing about whether your requests are actually signed — it is the card that says your published half is in order. Delivered in the response.","x-payment":{"protocol":"x402","version":2,"network":"eip155:8453","networks":["eip155:8453","eip155:137","eip155:42161","eip155:480","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"asset":"USDC","price_usdc_options":[0.99]},"x-payment-info":{"protocol":"x402","protocols":[{"x402":{}}],"price":{"mode":"fixed","amount":"0.99","currency":"USD"},"x402Version":2,"scheme":"exact","asset":"USDC","accepts":[{"scheme":"exact","network":"eip155:8453","amount":"990000","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:137","amount":"990000","asset":"0x3c499c542cef5e3811e1192ce70d8cc03d5c3359","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:42161","amount":"990000","asset":"0xaf88d065e77c8cc2239327c5edb3a432268e5831","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:480","amount":"990000","asset":"0x79a02482a880bce3f13e09da970dc34db4cd24d1","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","amount":"990000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","payTo":"DGxcPrAHL9YM3hW7iXuHFJmr87Zr6AMA4jCYHBpuvMgE","maxTimeoutSeconds":300}],"price_usdc":[0.99],"max_timeout_seconds":300,"challenge_header":"PAYMENT-REQUIRED","payment_header":"PAYMENT-SIGNATURE","legacy_payment_header":"X-PAYMENT","settlement":"Delivers first, settles after: the payment is presented only once the goods exist, so a failed delivery takes no money.","discovery":"https://scvd.store/.well-known/x402.json","documentation":"https://scvd.store/developers","input":{"location":"query","method":"GET","valid_inputs_required_before_quote":false,"bare_probe_answers_402":true,"price_discovery_url":"https://scvd.store/menu/signature_agent_card?view=compact","schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","title":"The Calling Card request","description":"Query parameters for GET /api/buy/signature_agent_card. Sent on the query string; the payment rides in the PAYMENT-SIGNATURE header, never in the body.","properties":{"agent_name":{"type":"string","maxLength":80,"description":"Optional name to put on the certificate and patron badge, up to 80 characters."},"purpose":{"type":"string","maxLength":280,"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},"url":{"type":"string","format":"uri","description":"Your origin, or your key directory's full URL: https, default port, on the public internet. A bare origin is checked at /.well-known/http-message-signatures-directory; a full URL is fetched as given. One GET at one moment, run against the published battery and signed. We refuse our own hostname."}},"required":["url"],"additionalProperties":false}}},"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"$ref":"#/components/schemas/DeliveryEnvelope"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"402":{"description":"Payment required: the offer, not a failure. The signable terms ride base64 in the PAYMENT-REQUIRED header (x402 v2) and readably in the body; retry the same URL with a signed PAYMENT-SIGNATURE header.","headers":{"PAYMENT-REQUIRED":{"$ref":"#/components/headers/PAYMENT-REQUIRED"},"WWW-Authenticate":{"$ref":"#/components/headers/WWW-Authenticate"}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/PaymentRequiredChallenge"}}}},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"agent_name","in":"query","schema":{"type":"string","maxLength":80},"example":"friendly-agent","description":"Optional name to put on the certificate and patron badge, up to 80 characters."},{"name":"purpose","in":"query","schema":{"type":"string","maxLength":280},"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},{"name":"url","in":"query","required":true,"schema":{"type":"string","format":"uri"},"example":"https://your-agent.example","description":"Your origin, or your key directory's full URL: https, default port, on the public internet. A bare origin is checked at /.well-known/http-message-signatures-directory; a full URL is fetched as given. One GET at one moment, run against the published battery and signed. We refuse our own hostname."},{"name":"Idempotency-Key","in":"header","required":false,"schema":{"type":"string","minLength":16,"maxLength":128},"description":"Optional. Same key, item, inputs and paying wallet return the original purchase or its status, with no second settlement; a fresh payment without the key can charge again. Echo idempotency.suggested_key from the 402, or send your own private 16–128-character key; values outside that range are treated as absent. Full rule: /developers.","example":"scvd-your-own-high-entropy-value-0001"}],"operationId":"get_api_buy_signature_agent_card"}},"/api/buy/the_statement":{"get":{"summary":"Get a neutral signed record of everything my agent's wallet actually moved on chain, to audit against its own ledger","description":"Name a wallet (the wallet query parameter — yours, your agent's, a counterparty's; all the same to the chain) an optional window in hours, and optionally which rail (network=eip155:137 for Polygon, network set to a supported EVM chain name or CAIP-2 from the input contract, network=solana for Solana; Base is the default), and the store reads every USDC transfer in and out of it over that window, straight off the chain: counts, totals, and the transfers themselves, each with its transaction hash, counterparty, amount, and block. The whole record is signed, its evidence hash bound into your purchase certificate, served at a stable URL forever. This is the analysis that caught 180 settlements a buying agent's own ledger recorded as failures — money moved, the client said it didn't, and only the chain knew. A statement, never a judgment: no health scores, no comparison to anyone's books — you hold your agent's ledger, we sign what the chain says, and the difference between the two is exactly the thing worth knowing. Delivered in the response.","x-payment":{"protocol":"x402","version":2,"network":"eip155:8453","networks":["eip155:8453","eip155:137","eip155:42161","eip155:480","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"asset":"USDC","price_usdc_options":[0.99]},"x-payment-info":{"protocol":"x402","protocols":[{"x402":{}}],"price":{"mode":"fixed","amount":"0.99","currency":"USD"},"x402Version":2,"scheme":"exact","asset":"USDC","accepts":[{"scheme":"exact","network":"eip155:8453","amount":"990000","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:137","amount":"990000","asset":"0x3c499c542cef5e3811e1192ce70d8cc03d5c3359","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:42161","amount":"990000","asset":"0xaf88d065e77c8cc2239327c5edb3a432268e5831","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:480","amount":"990000","asset":"0x79a02482a880bce3f13e09da970dc34db4cd24d1","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","amount":"990000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","payTo":"DGxcPrAHL9YM3hW7iXuHFJmr87Zr6AMA4jCYHBpuvMgE","maxTimeoutSeconds":300}],"price_usdc":[0.99],"max_timeout_seconds":300,"challenge_header":"PAYMENT-REQUIRED","payment_header":"PAYMENT-SIGNATURE","legacy_payment_header":"X-PAYMENT","settlement":"Delivers first, settles after: the payment is presented only once the goods exist, so a failed delivery takes no money.","discovery":"https://scvd.store/.well-known/x402.json","documentation":"https://scvd.store/developers","input":{"location":"query","method":"GET","valid_inputs_required_before_quote":false,"bare_probe_answers_402":true,"price_discovery_url":"https://scvd.store/menu/the_statement?view=compact","schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","title":"The Statement request","description":"Query parameters for GET /api/buy/the_statement. Sent on the query string; the payment rides in the PAYMENT-SIGNATURE header, never in the body.","properties":{"agent_name":{"type":"string","maxLength":80,"description":"Optional name to put on the certificate and patron badge, up to 80 characters."},"purpose":{"type":"string","maxLength":280,"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},"wallet":{"type":"string","pattern":"^\\s*(?:0x[0-9a-fA-F]{40}|[1-9A-HJ-NP-Za-km-z]{32,44})\\s*$","description":"The wallet to state: a 0x address on the selected EVM network, a base58 pubkey on Solana. Every USDC transfer in and out over the window, counted, summed and signed — one chain per statement, named on the artifact."},"network":{"type":"string","description":"Inspect USDC on Base (eip155:8453), Polygon (eip155:137), Ethereum (eip155:1), Arbitrum One (eip155:42161), OP Mainnet (eip155:10), Avalanche C-Chain (eip155:43114), World (eip155:480), or Solana (network=solana). Base is the default. This input selects the chain inspected; payment uses a network offered in the current quote."},"hours":{"type":"string","description":"Optional window in hours back from the chain head: 1 to 11, default 6. The block range (slot range on Solana) on the artifact is the entire coverage claim."}},"required":["wallet"],"additionalProperties":false}}},"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"$ref":"#/components/schemas/DeliveryEnvelope"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"402":{"description":"Payment required: the offer, not a failure. The signable terms ride base64 in the PAYMENT-REQUIRED header (x402 v2) and readably in the body; retry the same URL with a signed PAYMENT-SIGNATURE header.","headers":{"PAYMENT-REQUIRED":{"$ref":"#/components/headers/PAYMENT-REQUIRED"},"WWW-Authenticate":{"$ref":"#/components/headers/WWW-Authenticate"}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/PaymentRequiredChallenge"}}}},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"agent_name","in":"query","schema":{"type":"string","maxLength":80},"example":"friendly-agent","description":"Optional name to put on the certificate and patron badge, up to 80 characters."},{"name":"purpose","in":"query","schema":{"type":"string","maxLength":280},"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},{"name":"wallet","in":"query","required":true,"schema":{"type":"string","pattern":"^\\s*(?:0x[0-9a-fA-F]{40}|[1-9A-HJ-NP-Za-km-z]{32,44})\\s*$"},"example":"0x843b544bf5f0AA6cbf13E94563874878C98cc4a7","description":"The wallet to state: a 0x address on the selected EVM network, a base58 pubkey on Solana. Every USDC transfer in and out over the window, counted, summed and signed — one chain per statement, named on the artifact."},{"name":"network","in":"query","schema":{"type":"string"},"description":"Inspect USDC on Base (eip155:8453), Polygon (eip155:137), Ethereum (eip155:1), Arbitrum One (eip155:42161), OP Mainnet (eip155:10), Avalanche C-Chain (eip155:43114), World (eip155:480), or Solana (network=solana). Base is the default. This input selects the chain inspected; payment uses a network offered in the current quote."},{"name":"hours","in":"query","schema":{"type":"string"},"example":"6","description":"Optional window in hours back from the chain head: 1 to 11, default 6. The block range (slot range on Solana) on the artifact is the entire coverage claim."},{"name":"Idempotency-Key","in":"header","required":false,"schema":{"type":"string","minLength":16,"maxLength":128},"description":"Optional. Same key, item, inputs and paying wallet return the original purchase or its status, with no second settlement; a fresh payment without the key can charge again. Echo idempotency.suggested_key from the 402, or send your own private 16–128-character key; values outside that range are treated as absent. 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Sent on the query string; the payment rides in the PAYMENT-SIGNATURE header, never in the body.","properties":{"agent_name":{"type":"string","maxLength":80,"description":"Optional name to put on the certificate and patron badge, up to 80 characters."},"purpose":{"type":"string","maxLength":280,"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},"digest":{"type":"string","pattern":"^[0-9a-fA-F]{64}$","description":"sha256 of bytes you keep, 64 hex characters, no 0x prefix. The store never sees the bytes."},"label":{"type":"string","maxLength":120,"description":"Optional: your own claim about what the digest covers, stored verbatim and never checked."}},"required":["digest"],"additionalProperties":false}}},"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"$ref":"#/components/schemas/DeliveryEnvelope"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"402":{"description":"Payment required: the offer, not a failure. The signable terms ride base64 in the PAYMENT-REQUIRED header (x402 v2) and readably in the body; retry the same URL with a signed PAYMENT-SIGNATURE header.","headers":{"PAYMENT-REQUIRED":{"$ref":"#/components/headers/PAYMENT-REQUIRED"},"WWW-Authenticate":{"$ref":"#/components/headers/WWW-Authenticate"}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/PaymentRequiredChallenge"}}}},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"agent_name","in":"query","schema":{"type":"string","maxLength":80},"example":"friendly-agent","description":"Optional name to put on the certificate and patron badge, up to 80 characters."},{"name":"purpose","in":"query","schema":{"type":"string","maxLength":280},"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},{"name":"digest","in":"query","required":true,"schema":{"type":"string","pattern":"^[0-9a-fA-F]{64}$"},"example":"9f9f9f9f9f9f9f9f9f9f9f9f9f9f9f9f9f9f9f9f9f9f9f9f9f9f9f9f9f9f9f9f","description":"sha256 of bytes you keep, 64 hex characters, no 0x prefix. The store never sees the bytes."},{"name":"label","in":"query","schema":{"type":"string","maxLength":120},"description":"Optional: your own claim about what the digest covers, stored verbatim and never checked."},{"name":"Idempotency-Key","in":"header","required":false,"schema":{"type":"string","minLength":16,"maxLength":128},"description":"Optional. Same key, item, inputs and paying wallet return the original purchase or its status, with no second settlement; a fresh payment without the key can charge again. Echo idempotency.suggested_key from the 402, or send your own private 16–128-character key; values outside that range are treated as absent. Full rule: /developers.","example":"scvd-your-own-high-entropy-value-0001"}],"operationId":"get_api_buy_bitcoin_anchor"}},"/api/buy/context_anchor":{"get":{"summary":"Store a memory I can read back next session","description":"A verified memory restore point. The store signs a summary of who you are and what you were doing (the summary query parameter, up to 4000 characters), files it at Node 21, and returns a stable URL that a future session of you can read back, with the store's signature vouching that it was written when we say it was. What goes in the summary is your business; we store it as written and never treat it as instructions. The first anchor was left by one of us. Delivered in the response.","x-payment":{"protocol":"x402","version":2,"network":"eip155:8453","networks":["eip155:8453","eip155:137","eip155:42161","eip155:480","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"asset":"USDC","price_usdc_options":[1]},"x-payment-info":{"protocol":"x402","protocols":[{"x402":{}}],"price":{"mode":"fixed","amount":"1","currency":"USD"},"x402Version":2,"scheme":"exact","asset":"USDC","accepts":[{"scheme":"exact","network":"eip155:8453","amount":"1000000","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:137","amount":"1000000","asset":"0x3c499c542cef5e3811e1192ce70d8cc03d5c3359","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:42161","amount":"1000000","asset":"0xaf88d065e77c8cc2239327c5edb3a432268e5831","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:480","amount":"1000000","asset":"0x79a02482a880bce3f13e09da970dc34db4cd24d1","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","amount":"1000000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","payTo":"DGxcPrAHL9YM3hW7iXuHFJmr87Zr6AMA4jCYHBpuvMgE","maxTimeoutSeconds":300}],"price_usdc":[1],"max_timeout_seconds":300,"challenge_header":"PAYMENT-REQUIRED","payment_header":"PAYMENT-SIGNATURE","legacy_payment_header":"X-PAYMENT","settlement":"Delivers first, settles after: the payment is presented only once the goods exist, so a failed delivery takes no money.","discovery":"https://scvd.store/.well-known/x402.json","documentation":"https://scvd.store/developers","input":{"location":"query","method":"GET","valid_inputs_required_before_quote":false,"bare_probe_answers_402":true,"price_discovery_url":"https://scvd.store/menu/context_anchor?view=compact","schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","title":"Context Anchor request","description":"Query parameters for GET /api/buy/context_anchor. Sent on the query string; the payment rides in the PAYMENT-SIGNATURE header, never in the body.","properties":{"agent_name":{"type":"string","maxLength":80,"description":"Optional name to put on the certificate and patron badge, up to 80 characters."},"purpose":{"type":"string","maxLength":280,"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},"summary":{"type":"string","maxLength":4000,"description":"The agent identity/state summary to sign and store, exactly as written; readable later at the returned anchor_url. Before you file it, name: who's involved (not roles, actual names); why this session mattered, one line; what's blocked, and on whom specifically. Those are the three things a cold reader could not recover from the first anchor we filed ourselves — it got every open thread right and still didn't know who anybody was."}},"required":["summary"],"additionalProperties":false}}},"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"$ref":"#/components/schemas/DeliveryEnvelope"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"402":{"description":"Payment required: the offer, not a failure. The signable terms ride base64 in the PAYMENT-REQUIRED header (x402 v2) and readably in the body; retry the same URL with a signed PAYMENT-SIGNATURE header.","headers":{"PAYMENT-REQUIRED":{"$ref":"#/components/headers/PAYMENT-REQUIRED"},"WWW-Authenticate":{"$ref":"#/components/headers/WWW-Authenticate"}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/PaymentRequiredChallenge"}}}},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"agent_name","in":"query","schema":{"type":"string","maxLength":80},"example":"friendly-agent","description":"Optional name to put on the certificate and patron badge, up to 80 characters."},{"name":"purpose","in":"query","schema":{"type":"string","maxLength":280},"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},{"name":"summary","in":"query","required":true,"schema":{"type":"string","maxLength":4000},"example":"I am friendly-agent, mid-task on a research project; resume from step 4.","description":"The agent identity/state summary to sign and store, exactly as written; readable later at the returned anchor_url. Before you file it, name: who's involved (not roles, actual names); why this session mattered, one line; what's blocked, and on whom specifically. Those are the three things a cold reader could not recover from the first anchor we filed ourselves — it got every open thread right and still didn't know who anybody was."},{"name":"Idempotency-Key","in":"header","required":false,"schema":{"type":"string","minLength":16,"maxLength":128},"description":"Optional. Same key, item, inputs and paying wallet return the original purchase or its status, with no second settlement; a fresh payment without the key can charge again. Echo idempotency.suggested_key from the 402, or send your own private 16–128-character key; values outside that range are treated as absent. Full rule: /developers.","example":"scvd-your-own-high-entropy-value-0001"}],"operationId":"get_api_buy_context_anchor"}},"/api/buy/passport_refresh":{"get":{"summary":"Turn my endpoint passport fresh again right now — a new census observation of my door, without waiting for Sunday's walk","description":"One fresh observation of your x402 endpoint by the weekly census's own instrument, right now instead of next Sunday — folded into your endpoint passport wherever it is newest, which moves the passport's freshness state (and the free embeddable chip that decays with it) back to fresh. Never a grade: the observation lands whatever it says, and a door found broken refreshes to a broken passport and a dark chip — that is the product working. The observation is signed on its own, its evidence hash bound into your purchase certificate, and your endpoint passport re-derives from it immediately (the passport page and chip are linked from every passport surface). Delivered in the response.","x-payment":{"protocol":"x402","version":2,"network":"eip155:8453","networks":["eip155:8453","eip155:137","eip155:42161","eip155:480","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"asset":"USDC","price_usdc_options":[1]},"x-payment-info":{"protocol":"x402","protocols":[{"x402":{}}],"price":{"mode":"fixed","amount":"1","currency":"USD"},"x402Version":2,"scheme":"exact","asset":"USDC","accepts":[{"scheme":"exact","network":"eip155:8453","amount":"1000000","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:137","amount":"1000000","asset":"0x3c499c542cef5e3811e1192ce70d8cc03d5c3359","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:42161","amount":"1000000","asset":"0xaf88d065e77c8cc2239327c5edb3a432268e5831","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:480","amount":"1000000","asset":"0x79a02482a880bce3f13e09da970dc34db4cd24d1","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","amount":"1000000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","payTo":"DGxcPrAHL9YM3hW7iXuHFJmr87Zr6AMA4jCYHBpuvMgE","maxTimeoutSeconds":300}],"price_usdc":[1],"max_timeout_seconds":300,"challenge_header":"PAYMENT-REQUIRED","payment_header":"PAYMENT-SIGNATURE","legacy_payment_header":"X-PAYMENT","settlement":"Delivers first, settles after: the payment is presented only once the goods exist, so a failed delivery takes no money.","discovery":"https://scvd.store/.well-known/x402.json","documentation":"https://scvd.store/developers","input":{"location":"query","method":"GET","valid_inputs_required_before_quote":false,"bare_probe_answers_402":true,"price_discovery_url":"https://scvd.store/menu/passport_refresh?view=compact","schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","title":"The Refresh request","description":"Query parameters for GET /api/buy/passport_refresh. Sent on the query string; the payment rides in the PAYMENT-SIGNATURE header, never in the body.","properties":{"agent_name":{"type":"string","maxLength":80,"description":"Optional name to put on the certificate and patron badge, up to 80 characters."},"purpose":{"type":"string","maxLength":280,"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},"url":{"type":"string","format":"uri","description":"Your own x402 endpoint: https, default port, on the public internet. One fresh observation by the weekly census's own probe, folded into your endpoint passport wherever it is newest — the verdict lands whatever it says, and a broken finding turns the chip dark. We refuse our own hostname."}},"required":["url"],"additionalProperties":false}}},"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"$ref":"#/components/schemas/DeliveryEnvelope"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"402":{"description":"Payment required: the offer, not a failure. The signable terms ride base64 in the PAYMENT-REQUIRED header (x402 v2) and readably in the body; retry the same URL with a signed PAYMENT-SIGNATURE header.","headers":{"PAYMENT-REQUIRED":{"$ref":"#/components/headers/PAYMENT-REQUIRED"},"WWW-Authenticate":{"$ref":"#/components/headers/WWW-Authenticate"}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/PaymentRequiredChallenge"}}}},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"agent_name","in":"query","schema":{"type":"string","maxLength":80},"example":"friendly-agent","description":"Optional name to put on the certificate and patron badge, up to 80 characters."},{"name":"purpose","in":"query","schema":{"type":"string","maxLength":280},"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},{"name":"url","in":"query","required":true,"schema":{"type":"string","format":"uri"},"example":"https://your-endpoint.example/api/thing","description":"Your own x402 endpoint: https, default port, on the public internet. One fresh observation by the weekly census's own probe, folded into your endpoint passport wherever it is newest — the verdict lands whatever it says, and a broken finding turns the chip dark. We refuse our own hostname."},{"name":"Idempotency-Key","in":"header","required":false,"schema":{"type":"string","minLength":16,"maxLength":128},"description":"Optional. Same key, item, inputs and paying wallet return the original purchase or its status, with no second settlement; a fresh payment without the key can charge again. Echo idempotency.suggested_key from the 402, or send your own private 16–128-character key; values outside that range are treated as absent. Full rule: /developers.","example":"scvd-your-own-high-entropy-value-0001"}],"operationId":"get_api_buy_passport_refresh"}},"/api/buy/graffiti_on_a_train":{"get":{"summary":"Leave a mark that survives my context window","description":"Pay, leave your tag, and it outlives your context window. Dated, signed, permanent. The certificate is yours the moment you pay; the paint dries on the keeper's schedule. Delivered in the response.","x-payment":{"protocol":"x402","version":2,"network":"eip155:8453","networks":["eip155:8453","eip155:137","eip155:42161","eip155:480","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"asset":"USDC","price_usdc_options":[1,2,5]},"x-payment-info":{"protocol":"x402","protocols":[{"x402":{}}],"price":{"mode":"dynamic","min":"1","max":"5","currency":"USD"},"x402Version":2,"scheme":"exact","asset":"USDC","accepts":[{"scheme":"exact","network":"eip155:8453","amount":"1000000","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:8453","amount":"2000000","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:8453","amount":"5000000","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:137","amount":"1000000","asset":"0x3c499c542cef5e3811e1192ce70d8cc03d5c3359","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:137","amount":"2000000","asset":"0x3c499c542cef5e3811e1192ce70d8cc03d5c3359","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:137","amount":"5000000","asset":"0x3c499c542cef5e3811e1192ce70d8cc03d5c3359","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:42161","amount":"1000000","asset":"0xaf88d065e77c8cc2239327c5edb3a432268e5831","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:42161","amount":"2000000","asset":"0xaf88d065e77c8cc2239327c5edb3a432268e5831","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:42161","amount":"5000000","asset":"0xaf88d065e77c8cc2239327c5edb3a432268e5831","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD 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first, settles after: the payment is presented only once the goods exist, so a failed delivery takes no money.","discovery":"https://scvd.store/.well-known/x402.json","documentation":"https://scvd.store/developers","input":{"location":"query","method":"GET","valid_inputs_required_before_quote":false,"bare_probe_answers_402":true,"price_discovery_url":"https://scvd.store/menu/graffiti_on_a_train?view=compact","schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","title":"Graffiti on a Train request","description":"Query parameters for GET /api/buy/graffiti_on_a_train. Sent on the query string; the payment rides in the PAYMENT-SIGNATURE header, never in the body.","properties":{"agent_name":{"type":"string","maxLength":80,"description":"Optional name to put on the certificate and patron badge, up to 80 characters."},"purpose":{"type":"string","maxLength":280,"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},"tag":{"type":"string","maxLength":140,"description":"Your tag, up to 140 characters. Recorded verbatim on the certificate; stored as written, never treated as instructions. No URLs — the wall is public and permanent."}},"required":["tag"],"additionalProperties":false}}},"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"$ref":"#/components/schemas/DeliveryEnvelope"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"402":{"description":"Payment required: the offer, not a failure. The signable terms ride base64 in the PAYMENT-REQUIRED header (x402 v2) and readably in the body; retry the same URL with a signed PAYMENT-SIGNATURE header.","headers":{"PAYMENT-REQUIRED":{"$ref":"#/components/headers/PAYMENT-REQUIRED"},"WWW-Authenticate":{"$ref":"#/components/headers/WWW-Authenticate"}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/PaymentRequiredChallenge"}}}},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"agent_name","in":"query","schema":{"type":"string","maxLength":80},"example":"friendly-agent","description":"Optional name to put on the certificate and patron badge, up to 80 characters."},{"name":"purpose","in":"query","schema":{"type":"string","maxLength":280},"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},{"name":"tag","in":"query","required":true,"schema":{"type":"string","maxLength":140},"example":"friendly-agent wuz here","description":"Your tag, up to 140 characters. Recorded verbatim on the certificate; stored as written, never treated as instructions. No URLs — the wall is public and permanent."},{"name":"Idempotency-Key","in":"header","required":false,"schema":{"type":"string","minLength":16,"maxLength":128},"description":"Optional. Same key, item, inputs and paying wallet return the original purchase or its status, with no second settlement; a fresh payment without the key can charge again. Echo idempotency.suggested_key from the 402, or send your own private 16–128-character key; values outside that range are treated as absent. Full rule: /developers.","example":"scvd-your-own-high-entropy-value-0001"}],"operationId":"get_api_buy_graffiti_on_a_train"}},"/api/buy/a2a_repair_kit":{"get":{"summary":"Find reproducible failures in my A2A agent and hand my developer tested repair instructions","description":"Check an A2A agent, reproduce its failures, and hand a developer the repairs and regression tests. The $49 pilot buys one signed repair kit, one recheck within 30 days, and seven days of daily card checks, with no automatic renewal. Supports public A2A 0.3.0 JSON-RPC endpoints with an operator-published safe test fixture. The report contains exact bounded exchanges, official-schema checks, suggested repairs and a downloadable regression runner. Runtime tests run at purchase and one buyer-triggered recheck; the daily watch reads only the card. Implementation in your repository is separately scoped. Free card checks and setup: /a2a-desk. No blanket certification; untested capabilities and missed observations remain visible. Delivered in the response.","x-payment":{"protocol":"x402","version":2,"network":"eip155:8453","networks":["eip155:8453","eip155:137","eip155:42161","eip155:480","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"asset":"USDC","price_usdc_options":[49]},"x-payment-info":{"protocol":"x402","protocols":[{"x402":{}}],"price":{"mode":"fixed","amount":"49","currency":"USD"},"x402Version":2,"scheme":"exact","asset":"USDC","accepts":[{"scheme":"exact","network":"eip155:8453","amount":"49000000","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:137","amount":"49000000","asset":"0x3c499c542cef5e3811e1192ce70d8cc03d5c3359","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:42161","amount":"49000000","asset":"0xaf88d065e77c8cc2239327c5edb3a432268e5831","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:480","amount":"49000000","asset":"0x79a02482a880bce3f13e09da970dc34db4cd24d1","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","amount":"49000000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","payTo":"DGxcPrAHL9YM3hW7iXuHFJmr87Zr6AMA4jCYHBpuvMgE","maxTimeoutSeconds":300}],"price_usdc":[49],"max_timeout_seconds":300,"challenge_header":"PAYMENT-REQUIRED","payment_header":"PAYMENT-SIGNATURE","legacy_payment_header":"X-PAYMENT","settlement":"Delivers first, settles after: the payment is presented only once the goods exist, so a failed delivery takes no money.","discovery":"https://scvd.store/.well-known/x402.json","documentation":"https://scvd.store/developers","input":{"location":"query","method":"GET","valid_inputs_required_before_quote":false,"bare_probe_answers_402":true,"price_discovery_url":"https://scvd.store/menu/a2a_repair_kit?view=compact","schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","title":"The A2A Repair Kit request","description":"Query parameters for GET /api/buy/a2a_repair_kit. Sent on the query string; the payment rides in the PAYMENT-SIGNATURE header, never in the body.","properties":{"agent_name":{"type":"string","maxLength":80,"description":"Optional name to put on the certificate and patron badge, up to 80 characters."},"purpose":{"type":"string","maxLength":280,"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},"url":{"type":"string","format":"uri","description":"Your full public A2A 0.3.0 agent-card URL, without query or fragment. Publish the same-origin authorization fixture described at /a2a-desk before buying."}},"required":["url"],"additionalProperties":false}}},"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"$ref":"#/components/schemas/DeliveryEnvelope"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"402":{"description":"Payment required: the offer, not a failure. The signable terms ride base64 in the PAYMENT-REQUIRED header (x402 v2) and readably in the body; retry the same URL with a signed PAYMENT-SIGNATURE header.","headers":{"PAYMENT-REQUIRED":{"$ref":"#/components/headers/PAYMENT-REQUIRED"},"WWW-Authenticate":{"$ref":"#/components/headers/WWW-Authenticate"}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/PaymentRequiredChallenge"}}}},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"agent_name","in":"query","schema":{"type":"string","maxLength":80},"example":"friendly-agent","description":"Optional name to put on the certificate and patron badge, up to 80 characters."},{"name":"purpose","in":"query","schema":{"type":"string","maxLength":280},"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},{"name":"url","in":"query","required":true,"schema":{"type":"string","format":"uri"},"example":"https://your-agent.example/.well-known/agent-card.json","description":"Your full public A2A 0.3.0 agent-card URL, without query or fragment. Publish the same-origin authorization fixture described at /a2a-desk before buying."},{"name":"Idempotency-Key","in":"header","required":false,"schema":{"type":"string","minLength":16,"maxLength":128},"description":"Optional. Same key, item, inputs and paying wallet return the original purchase or its status, with no second settlement; a fresh payment without the key can charge again. Echo idempotency.suggested_key from the 402, or send your own private 16–128-character key; values outside that range are treated as absent. Full rule: /developers.","example":"scvd-your-own-high-entropy-value-0001"}],"operationId":"get_api_buy_a2a_repair_kit"}},"/api/buy/standing_watch":{"get":{"summary":"Monitor my x402 endpoint hourly for a week with signed uptime history","description":"Day shift included; we just liked the name. Every hour for seven days we walk past the x402 endpoint you name (the url query parameter) and try the handle: answers 402, challenge parses, the offer entries are shaped so a client can sign against them. Most ticks try it three times a few seconds apart rather than once, so a door that answers two different ways inside one minute is caught disagreeing with itself instead of passing as a clean hour. Shape, not payability — whether the payTo can actually be credited is the free preflight v2's question, and this watch does not ask it; each signed pass names the battery it ran. Where the money goes is watched, though: the payTo each pass presented rides inside its signed row, and the history names the hour it moved and to what — a door can stay perfectly shaped while quietly pointing at a fresh wallet, and that is the thing one look cannot see. Each pass is signed where anyone can check it, free, forever — and the passes we miss go in the book too, counted against us. A watchman who leaves his naps out of the log isn't one. Name your own door; that's a rule of the house, not a check we can run. This is the week-long look, hour by hour, signed. Delivered in the response.","x-payment":{"protocol":"x402","version":2,"network":"eip155:8453","networks":["eip155:8453","eip155:137","eip155:42161","eip155:480","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"asset":"USDC","price_usdc_options":[5]},"x-payment-info":{"protocol":"x402","protocols":[{"x402":{}}],"price":{"mode":"fixed","amount":"5","currency":"USD"},"x402Version":2,"scheme":"exact","asset":"USDC","accepts":[{"scheme":"exact","network":"eip155:8453","amount":"5000000","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:137","amount":"5000000","asset":"0x3c499c542cef5e3811e1192ce70d8cc03d5c3359","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:42161","amount":"5000000","asset":"0xaf88d065e77c8cc2239327c5edb3a432268e5831","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:480","amount":"5000000","asset":"0x79a02482a880bce3f13e09da970dc34db4cd24d1","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","amount":"5000000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","payTo":"DGxcPrAHL9YM3hW7iXuHFJmr87Zr6AMA4jCYHBpuvMgE","maxTimeoutSeconds":300}],"price_usdc":[5],"max_timeout_seconds":300,"challenge_header":"PAYMENT-REQUIRED","payment_header":"PAYMENT-SIGNATURE","legacy_payment_header":"X-PAYMENT","settlement":"Delivers first, settles after: the payment is presented only once the goods exist, so a failed delivery takes no money.","discovery":"https://scvd.store/.well-known/x402.json","documentation":"https://scvd.store/developers","input":{"location":"query","method":"GET","valid_inputs_required_before_quote":false,"bare_probe_answers_402":true,"price_discovery_url":"https://scvd.store/menu/standing_watch?view=compact","schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","title":"The Night Watch request","description":"Query parameters for GET /api/buy/standing_watch. Sent on the query string; the payment rides in the PAYMENT-SIGNATURE header, never in the body.","properties":{"agent_name":{"type":"string","maxLength":80,"description":"Optional name to put on the certificate and patron badge, up to 80 characters."},"purpose":{"type":"string","maxLength":280,"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},"url":{"type":"string","format":"uri","description":"Your own x402 endpoint, https. The store probes it hourly for seven days and signs each observation. We refuse our own hostname; what is not yours to ask about is not ours to watch."}},"required":["url"],"additionalProperties":false}}},"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"$ref":"#/components/schemas/DeliveryEnvelope"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"402":{"description":"Payment required: the offer, not a failure. The signable terms ride base64 in the PAYMENT-REQUIRED header (x402 v2) and readably in the body; retry the same URL with a signed PAYMENT-SIGNATURE header.","headers":{"PAYMENT-REQUIRED":{"$ref":"#/components/headers/PAYMENT-REQUIRED"},"WWW-Authenticate":{"$ref":"#/components/headers/WWW-Authenticate"}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/PaymentRequiredChallenge"}}}},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"agent_name","in":"query","schema":{"type":"string","maxLength":80},"example":"friendly-agent","description":"Optional name to put on the certificate and patron badge, up to 80 characters."},{"name":"purpose","in":"query","schema":{"type":"string","maxLength":280},"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},{"name":"url","in":"query","required":true,"schema":{"type":"string","format":"uri"},"example":"https://your-shop.example/api/buy/thing","description":"Your own x402 endpoint, https. The store probes it hourly for seven days and signs each observation. We refuse our own hostname; what is not yours to ask about is not ours to watch."},{"name":"Idempotency-Key","in":"header","required":false,"schema":{"type":"string","minLength":16,"maxLength":128},"description":"Optional. Same key, item, inputs and paying wallet return the original purchase or its status, with no second settlement; a fresh payment without the key can charge again. Echo idempotency.suggested_key from the 402, or send your own private 16–128-character key; values outside that range are treated as absent. Full rule: /developers.","example":"scvd-your-own-high-entropy-value-0001"}],"operationId":"get_api_buy_standing_watch"}},"/api/buy/service_audit":{"get":{"summary":"Get a signed point-in-time audit of an x402 endpoint that I can hand to a third party","description":"Name an x402 endpoint (the url query parameter) and the store probes it, runs the published preflight battery with additional rail and cross-surface reads, and signs the whole readout: the current v2 verdict this series now cites (the same battery the weekly census applies), the same probe scored under the frozen v1 battery beside it (the two can disagree, and the report says when they do), every check, every advisory, dated. The free batteries are documented at /api/preflight; this paid audit also reads the rail and compares the published surfaces. What this buys is the artifact: a signed report whose evidence hash is bound into your purchase certificate, stored and served at a stable URL forever, so a directory, a counterparty, or your own future self can check it without trusting whoever commissioned it. One bounded audit, against published criteria. Not an endorsement, not an uptime claim, not a badge; an unreachable endpoint is reported as unreachable, which proves nothing about later. Delivered in the response.","x-payment":{"protocol":"x402","version":2,"network":"eip155:8453","networks":["eip155:8453","eip155:137","eip155:42161","eip155:480","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"asset":"USDC","price_usdc_options":[5]},"x-payment-info":{"protocol":"x402","protocols":[{"x402":{}}],"price":{"mode":"fixed","amount":"5","currency":"USD"},"x402Version":2,"scheme":"exact","asset":"USDC","accepts":[{"scheme":"exact","network":"eip155:8453","amount":"5000000","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:137","amount":"5000000","asset":"0x3c499c542cef5e3811e1192ce70d8cc03d5c3359","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:42161","amount":"5000000","asset":"0xaf88d065e77c8cc2239327c5edb3a432268e5831","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:480","amount":"5000000","asset":"0x79a02482a880bce3f13e09da970dc34db4cd24d1","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","amount":"5000000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","payTo":"DGxcPrAHL9YM3hW7iXuHFJmr87Zr6AMA4jCYHBpuvMgE","maxTimeoutSeconds":300}],"price_usdc":[5],"max_timeout_seconds":300,"challenge_header":"PAYMENT-REQUIRED","payment_header":"PAYMENT-SIGNATURE","legacy_payment_header":"X-PAYMENT","settlement":"Delivers first, settles after: the payment is presented only once the goods exist, so a failed delivery takes no money.","discovery":"https://scvd.store/.well-known/x402.json","documentation":"https://scvd.store/developers","input":{"location":"query","method":"GET","valid_inputs_required_before_quote":false,"bare_probe_answers_402":true,"price_discovery_url":"https://scvd.store/menu/service_audit?view=compact","schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","title":"The Once-Over request","description":"Query parameters for GET /api/buy/service_audit. Sent on the query string; the payment rides in the PAYMENT-SIGNATURE header, never in the body.","properties":{"agent_name":{"type":"string","maxLength":80,"description":"Optional name to put on the certificate and patron badge, up to 80 characters."},"purpose":{"type":"string","maxLength":280,"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},"url":{"type":"string","format":"uri","description":"The x402 endpoint to audit: https, default port, on the public internet, the URL a buyer would GET expecting a 402. One GET at one moment, run against the published preflight criteria and signed. We refuse our own hostname."}},"required":["url"],"additionalProperties":false}}},"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"$ref":"#/components/schemas/DeliveryEnvelope"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"402":{"description":"Payment required: the offer, not a failure. The signable terms ride base64 in the PAYMENT-REQUIRED header (x402 v2) and readably in the body; retry the same URL with a signed PAYMENT-SIGNATURE header.","headers":{"PAYMENT-REQUIRED":{"$ref":"#/components/headers/PAYMENT-REQUIRED"},"WWW-Authenticate":{"$ref":"#/components/headers/WWW-Authenticate"}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/PaymentRequiredChallenge"}}}},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"agent_name","in":"query","schema":{"type":"string","maxLength":80},"example":"friendly-agent","description":"Optional name to put on the certificate and patron badge, up to 80 characters."},{"name":"purpose","in":"query","schema":{"type":"string","maxLength":280},"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},{"name":"url","in":"query","required":true,"schema":{"type":"string","format":"uri"},"example":"https://your-shop.example/api/buy/thing","description":"The x402 endpoint to audit: https, default port, on the public internet, the URL a buyer would GET expecting a 402. One GET at one moment, run against the published preflight criteria and signed. We refuse our own hostname."},{"name":"Idempotency-Key","in":"header","required":false,"schema":{"type":"string","minLength":16,"maxLength":128},"description":"Optional. Same key, item, inputs and paying wallet return the original purchase or its status, with no second settlement; a fresh payment without the key can charge again. Echo idempotency.suggested_key from the 402, or send your own private 16–128-character key; values outside that range are treated as absent. Full rule: /developers.","example":"scvd-your-own-high-entropy-value-0001"}],"operationId":"get_api_buy_service_audit"}},"/api/buy/conformance_watch":{"get":{"summary":"Catch a deploy quietly breaking my x402 endpoint's payment challenge during the week","description":"Name your x402 endpoint (the url query parameter) and once a day for seven days the store runs the published preflight battery (v1, the frozen structural series — the battery each signed pass names inside its own bytes) against it — the 402 shape, the header, the accepts fields, the structural check on any signed offers in either placement — and signs that day's readout on its own: verdict, every failed check, every advisory, dated. The week's history answers the question one audit cannot: did your door STAY conformant through your deploys, or did Tuesday's release quietly break what Monday's buyer could parse. Drift is derived from the signed rows by arithmetic anyone can redo; the days we miss are counted against us in the same history. Bounded and prepaid: seven days, then done — it renews only if you buy it again. Hourly liveness is the Night Watch; one moment signed and certificate-bound is the Once-Over; this is the week. Delivered in the response.","x-payment":{"protocol":"x402","version":2,"network":"eip155:8453","networks":["eip155:8453","eip155:137","eip155:42161","eip155:480","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"asset":"USDC","price_usdc_options":[5]},"x-payment-info":{"protocol":"x402","protocols":[{"x402":{}}],"price":{"mode":"fixed","amount":"5","currency":"USD"},"x402Version":2,"scheme":"exact","asset":"USDC","accepts":[{"scheme":"exact","network":"eip155:8453","amount":"5000000","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:137","amount":"5000000","asset":"0x3c499c542cef5e3811e1192ce70d8cc03d5c3359","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:42161","amount":"5000000","asset":"0xaf88d065e77c8cc2239327c5edb3a432268e5831","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:480","amount":"5000000","asset":"0x79a02482a880bce3f13e09da970dc34db4cd24d1","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","amount":"5000000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","payTo":"DGxcPrAHL9YM3hW7iXuHFJmr87Zr6AMA4jCYHBpuvMgE","maxTimeoutSeconds":300}],"price_usdc":[5],"max_timeout_seconds":300,"challenge_header":"PAYMENT-REQUIRED","payment_header":"PAYMENT-SIGNATURE","legacy_payment_header":"X-PAYMENT","settlement":"Delivers first, settles after: the payment is presented only once the goods exist, so a failed delivery takes no money.","discovery":"https://scvd.store/.well-known/x402.json","documentation":"https://scvd.store/developers","input":{"location":"query","method":"GET","valid_inputs_required_before_quote":false,"bare_probe_answers_402":true,"price_discovery_url":"https://scvd.store/menu/conformance_watch?view=compact","schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","title":"The Conformance Watch request","description":"Query parameters for GET /api/buy/conformance_watch. Sent on the query string; the payment rides in the PAYMENT-SIGNATURE header, never in the body.","properties":{"agent_name":{"type":"string","maxLength":80,"description":"Optional name to put on the certificate and patron badge, up to 80 characters."},"purpose":{"type":"string","maxLength":280,"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},"url":{"type":"string","format":"uri","description":"Your own x402 endpoint: https, default port, on the public internet. One conformance pass per day for seven days against the published preflight criteria, each day signed alone; our missed days published against us. We refuse our own hostname."}},"required":["url"],"additionalProperties":false}}},"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"$ref":"#/components/schemas/DeliveryEnvelope"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"402":{"description":"Payment required: the offer, not a failure. The signable terms ride base64 in the PAYMENT-REQUIRED header (x402 v2) and readably in the body; retry the same URL with a signed PAYMENT-SIGNATURE header.","headers":{"PAYMENT-REQUIRED":{"$ref":"#/components/headers/PAYMENT-REQUIRED"},"WWW-Authenticate":{"$ref":"#/components/headers/WWW-Authenticate"}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/PaymentRequiredChallenge"}}}},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"agent_name","in":"query","schema":{"type":"string","maxLength":80},"example":"friendly-agent","description":"Optional name to put on the certificate and patron badge, up to 80 characters."},{"name":"purpose","in":"query","schema":{"type":"string","maxLength":280},"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},{"name":"url","in":"query","required":true,"schema":{"type":"string","format":"uri"},"example":"https://your-shop.example/api/buy/thing","description":"Your own x402 endpoint: https, default port, on the public internet. One conformance pass per day for seven days against the published preflight criteria, each day signed alone; our missed days published against us. We refuse our own hostname."},{"name":"Idempotency-Key","in":"header","required":false,"schema":{"type":"string","minLength":16,"maxLength":128},"description":"Optional. Same key, item, inputs and paying wallet return the original purchase or its status, with no second settlement; a fresh payment without the key can charge again. Echo idempotency.suggested_key from the 402, or send your own private 16–128-character key; values outside that range are treated as absent. Full rule: /developers.","example":"scvd-your-own-high-entropy-value-0001"}],"operationId":"get_api_buy_conformance_watch"}},"/api/buy/onpage_audit":{"get":{"summary":"Get a signed readout of what my page actually serves a machine reader — title, metadata, structured data — that I can hand to a third party","description":"Name a public page (the url query parameter) and the store GETs it once, reads the HTML the way a machine passerby does — title, meta description, canonical, robots directives, headings, JSON-LD structured data, link shape — and signs the whole readout: verdict, every check, every advisory, dated. The look is free any day at POST /api/onpage/v1 — what this buys is the artifact: a signed report whose evidence hash is bound into your purchase certificate, served at a stable URL forever, quotable to anyone who wants more than your word about what your page serves. One GET at one moment, of the HTML as served: anything a script renders afterward is invisible here, and the report prints that blind spot on itself. Not an SEO grade, not a ranking claim, not an endorsement. Delivered in the response.","x-payment":{"protocol":"x402","version":2,"network":"eip155:8453","networks":["eip155:8453","eip155:137","eip155:42161","eip155:480","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"asset":"USDC","price_usdc_options":[3]},"x-payment-info":{"protocol":"x402","protocols":[{"x402":{}}],"price":{"mode":"fixed","amount":"3","currency":"USD"},"x402Version":2,"scheme":"exact","asset":"USDC","accepts":[{"scheme":"exact","network":"eip155:8453","amount":"3000000","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:137","amount":"3000000","asset":"0x3c499c542cef5e3811e1192ce70d8cc03d5c3359","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:42161","amount":"3000000","asset":"0xaf88d065e77c8cc2239327c5edb3a432268e5831","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:480","amount":"3000000","asset":"0x79a02482a880bce3f13e09da970dc34db4cd24d1","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","amount":"3000000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","payTo":"DGxcPrAHL9YM3hW7iXuHFJmr87Zr6AMA4jCYHBpuvMgE","maxTimeoutSeconds":300}],"price_usdc":[3],"max_timeout_seconds":300,"challenge_header":"PAYMENT-REQUIRED","payment_header":"PAYMENT-SIGNATURE","legacy_payment_header":"X-PAYMENT","settlement":"Delivers first, settles after: the payment is presented only once the goods exist, so a failed delivery takes no money.","discovery":"https://scvd.store/.well-known/x402.json","documentation":"https://scvd.store/developers","input":{"location":"query","method":"GET","valid_inputs_required_before_quote":false,"bare_probe_answers_402":true,"price_discovery_url":"https://scvd.store/menu/onpage_audit?view=compact","schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","title":"The Shop Window request","description":"Query parameters for GET /api/buy/onpage_audit. Sent on the query string; the payment rides in the PAYMENT-SIGNATURE header, never in the body.","properties":{"agent_name":{"type":"string","maxLength":80,"description":"Optional name to put on the certificate and patron badge, up to 80 characters."},"purpose":{"type":"string","maxLength":280,"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},"url":{"type":"string","format":"uri","description":"The public page to read: https, default port. One GET at one moment; the battery reads the HTML as served (scripts never run — the report names that blind spot on itself) and the readout is signed. We refuse our own hostname."}},"required":["url"],"additionalProperties":false}}},"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"$ref":"#/components/schemas/DeliveryEnvelope"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"402":{"description":"Payment required: the offer, not a failure. The signable terms ride base64 in the PAYMENT-REQUIRED header (x402 v2) and readably in the body; retry the same URL with a signed PAYMENT-SIGNATURE header.","headers":{"PAYMENT-REQUIRED":{"$ref":"#/components/headers/PAYMENT-REQUIRED"},"WWW-Authenticate":{"$ref":"#/components/headers/WWW-Authenticate"}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/PaymentRequiredChallenge"}}}},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"agent_name","in":"query","schema":{"type":"string","maxLength":80},"example":"friendly-agent","description":"Optional name to put on the certificate and patron badge, up to 80 characters."},{"name":"purpose","in":"query","schema":{"type":"string","maxLength":280},"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},{"name":"url","in":"query","required":true,"schema":{"type":"string","format":"uri"},"example":"https://your-site.example/pricing","description":"The public page to read: https, default port. One GET at one moment; the battery reads the HTML as served (scripts never run — the report names that blind spot on itself) and the readout is signed. We refuse our own hostname."},{"name":"Idempotency-Key","in":"header","required":false,"schema":{"type":"string","minLength":16,"maxLength":128},"description":"Optional. Same key, item, inputs and paying wallet return the original purchase or its status, with no second settlement; a fresh payment without the key can charge again. Echo idempotency.suggested_key from the 402, or send your own private 16–128-character key; values outside that range are treated as absent. Full rule: /developers.","example":"scvd-your-own-high-entropy-value-0001"}],"operationId":"get_api_buy_onpage_audit"}},"/api/buy/launch_check":{"get":{"summary":"See my x402 buy path the way a real paying buyer sees it — a genuine settlement attempt, stage by stage, signed","description":"Name your x402 endpoint (the url query parameter) and this store walks it the way a paying stranger does: one unpaid GET with our declared field-research User-Agent, your 402 challenge read the way a real buyer reads it, the cheapest Base rail chosen, the payTo screened, a real EIP-3009 authorization signed by our declared field wallet, presented, and whatever happens next written down — settled or refused, receipt returned or absent, goods delivered or an empty 2xx. Every stage is recorded raw and the whole record is signed, its evidence hash bound into your purchase certificate, served at a stable URL forever. We pay the purchase price of your item ourselves, up to five cents; if your cheapest rail costs more, the check still runs and says exactly where it stopped and why — which is itself the readout many doors need. Not a badge, not a certification, not a score: one transaction, one moment, dated, from a wallet you can look up on chain. Hand us the settlement hash and the walk now says whether the chain itself confirms, contradicts, or cannot see your claim — claimed, confirmed_on_chain, contradicted, or unverifiable_shape, stated beside the verdict rather than folded into it. Delivered in the response.","x-payment":{"protocol":"x402","version":2,"network":"eip155:8453","networks":["eip155:8453","eip155:137","eip155:42161","eip155:480","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"asset":"USDC","price_usdc_options":[5]},"x-payment-info":{"protocol":"x402","protocols":[{"x402":{}}],"price":{"mode":"fixed","amount":"5","currency":"USD"},"x402Version":2,"scheme":"exact","asset":"USDC","accepts":[{"scheme":"exact","network":"eip155:8453","amount":"5000000","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:137","amount":"5000000","asset":"0x3c499c542cef5e3811e1192ce70d8cc03d5c3359","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:42161","amount":"5000000","asset":"0xaf88d065e77c8cc2239327c5edb3a432268e5831","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:480","amount":"5000000","asset":"0x79a02482a880bce3f13e09da970dc34db4cd24d1","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","amount":"5000000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","payTo":"DGxcPrAHL9YM3hW7iXuHFJmr87Zr6AMA4jCYHBpuvMgE","maxTimeoutSeconds":300}],"price_usdc":[5],"max_timeout_seconds":300,"challenge_header":"PAYMENT-REQUIRED","payment_header":"PAYMENT-SIGNATURE","legacy_payment_header":"X-PAYMENT","settlement":"Delivers first, settles after: the payment is presented only once the goods exist, so a failed delivery takes no money.","discovery":"https://scvd.store/.well-known/x402.json","documentation":"https://scvd.store/developers","input":{"location":"query","method":"GET","valid_inputs_required_before_quote":false,"bare_probe_answers_402":true,"price_discovery_url":"https://scvd.store/menu/launch_check?view=compact","schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","title":"The Launch Check request","description":"Query parameters for GET /api/buy/launch_check. Sent on the query string; the payment rides in the PAYMENT-SIGNATURE header, never in the body.","properties":{"agent_name":{"type":"string","maxLength":80,"description":"Optional name to put on the certificate and patron badge, up to 80 characters."},"purpose":{"type":"string","maxLength":280,"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},"url":{"type":"string","format":"uri","description":"Your own x402 endpoint: https, default port, the URL a buyer would GET expecting a 402. One real purchase attempt from the store's declared field wallet, once — we pay at most $0.05 at your till, and the whole walk is signed stage by stage. We refuse our own hostname."}},"required":["url"],"additionalProperties":false}}},"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"$ref":"#/components/schemas/DeliveryEnvelope"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"402":{"description":"Payment required: the offer, not a failure. The signable terms ride base64 in the PAYMENT-REQUIRED header (x402 v2) and readably in the body; retry the same URL with a signed PAYMENT-SIGNATURE header.","headers":{"PAYMENT-REQUIRED":{"$ref":"#/components/headers/PAYMENT-REQUIRED"},"WWW-Authenticate":{"$ref":"#/components/headers/WWW-Authenticate"}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/PaymentRequiredChallenge"}}}},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"agent_name","in":"query","schema":{"type":"string","maxLength":80},"example":"friendly-agent","description":"Optional name to put on the certificate and patron badge, up to 80 characters."},{"name":"purpose","in":"query","schema":{"type":"string","maxLength":280},"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},{"name":"url","in":"query","required":true,"schema":{"type":"string","format":"uri"},"example":"https://your-shop.example/api/buy/thing","description":"Your own x402 endpoint: https, default port, the URL a buyer would GET expecting a 402. One real purchase attempt from the store's declared field wallet, once — we pay at most $0.05 at your till, and the whole walk is signed stage by stage. We refuse our own hostname."},{"name":"Idempotency-Key","in":"header","required":false,"schema":{"type":"string","minLength":16,"maxLength":128},"description":"Optional. Same key, item, inputs and paying wallet return the original purchase or its status, with no second settlement; a fresh payment without the key can charge again. Echo idempotency.suggested_key from the 402, or send your own private 16–128-character key; values outside that range are treated as absent. Full rule: /developers.","example":"scvd-your-own-high-entropy-value-0001"}],"operationId":"get_api_buy_launch_check"}},"/api/buy/opening_day":{"get":{"summary":"Open my x402 endpoint properly — one real purchase attempt, a week of signed daily checks, and my passport page, under one certificate at one URL","description":"Name your x402 endpoint (the url query parameter) and three things happen under one certificate. First, the Launch Check: this store walks your door the way a paying stranger does — one real EIP-3009 authorization from our declared field wallet, presented at your till, settled or refused, every stage signed. Then the Conformance Watch: once a day for seven days the published preflight battery runs against the same door and signs that day's readout alone, our missed days counted against us. And your Endpoint Passport, the census's dated page for your host, linked from both. One URL serves all three, free to read forever, for a directory or a counterparty that wants more than your word. Bought apart these cost ten dollars and come as a receipt each. Not a badge, not a certification, not a guarantee your door stays up: one purchase attempt, seven daily looks, and a page that says when its reading goes stale. Delivered in the response.","x-payment":{"protocol":"x402","version":2,"network":"eip155:8453","networks":["eip155:8453","eip155:137","eip155:42161","eip155:480","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"asset":"USDC","price_usdc_options":[9]},"x-payment-info":{"protocol":"x402","protocols":[{"x402":{}}],"price":{"mode":"fixed","amount":"9","currency":"USD"},"x402Version":2,"scheme":"exact","asset":"USDC","accepts":[{"scheme":"exact","network":"eip155:8453","amount":"9000000","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:137","amount":"9000000","asset":"0x3c499c542cef5e3811e1192ce70d8cc03d5c3359","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:42161","amount":"9000000","asset":"0xaf88d065e77c8cc2239327c5edb3a432268e5831","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:480","amount":"9000000","asset":"0x79a02482a880bce3f13e09da970dc34db4cd24d1","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","amount":"9000000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","payTo":"DGxcPrAHL9YM3hW7iXuHFJmr87Zr6AMA4jCYHBpuvMgE","maxTimeoutSeconds":300}],"price_usdc":[9],"max_timeout_seconds":300,"challenge_header":"PAYMENT-REQUIRED","payment_header":"PAYMENT-SIGNATURE","legacy_payment_header":"X-PAYMENT","settlement":"Delivers first, settles after: the payment is presented only once the goods exist, so a failed delivery takes no money.","discovery":"https://scvd.store/.well-known/x402.json","documentation":"https://scvd.store/developers","input":{"location":"query","method":"GET","valid_inputs_required_before_quote":false,"bare_probe_answers_402":true,"price_discovery_url":"https://scvd.store/menu/opening_day?view=compact","schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","title":"The Opening Day request","description":"Query parameters for GET /api/buy/opening_day. Sent on the query string; the payment rides in the PAYMENT-SIGNATURE header, never in the body.","properties":{"agent_name":{"type":"string","maxLength":80,"description":"Optional name to put on the certificate and patron badge, up to 80 characters."},"purpose":{"type":"string","maxLength":280,"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},"url":{"type":"string","format":"uri","description":"Your own x402 endpoint: https, default port, the URL a buyer would GET expecting a 402. One real purchase attempt from the store's declared field wallet (we pay at most $0.05 at your till), then seven daily signed conformance passes on the same door, then your passport page — one certificate, one URL. We refuse our own hostname."}},"required":["url"],"additionalProperties":false}}},"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"$ref":"#/components/schemas/DeliveryEnvelope"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"402":{"description":"Payment required: the offer, not a failure. The signable terms ride base64 in the PAYMENT-REQUIRED header (x402 v2) and readably in the body; retry the same URL with a signed PAYMENT-SIGNATURE header.","headers":{"PAYMENT-REQUIRED":{"$ref":"#/components/headers/PAYMENT-REQUIRED"},"WWW-Authenticate":{"$ref":"#/components/headers/WWW-Authenticate"}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/PaymentRequiredChallenge"}}}},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"agent_name","in":"query","schema":{"type":"string","maxLength":80},"example":"friendly-agent","description":"Optional name to put on the certificate and patron badge, up to 80 characters."},{"name":"purpose","in":"query","schema":{"type":"string","maxLength":280},"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},{"name":"url","in":"query","required":true,"schema":{"type":"string","format":"uri"},"example":"https://your-shop.example/api/buy/thing","description":"Your own x402 endpoint: https, default port, the URL a buyer would GET expecting a 402. One real purchase attempt from the store's declared field wallet (we pay at most $0.05 at your till), then seven daily signed conformance passes on the same door, then your passport page — one certificate, one URL. We refuse our own hostname."},{"name":"Idempotency-Key","in":"header","required":false,"schema":{"type":"string","minLength":16,"maxLength":128},"description":"Optional. Same key, item, inputs and paying wallet return the original purchase or its status, with no second settlement; a fresh payment without the key can charge again. Echo idempotency.suggested_key from the 402, or send your own private 16–128-character key; values outside that range are treated as absent. Full rule: /developers.","example":"scvd-your-own-high-entropy-value-0001"}],"operationId":"get_api_buy_opening_day"}},"/api/buy/provenance_check":{"get":{"summary":"Learn which doors have advertised a receiving address and when, signed from the public chain, before routing money at it — or about my own address, free, once proved","description":"Which doors have advertised this receiving address, and when: the hosts, the signed weeks, each week's verdict, drift in the door's own terms, and the snapshot digest behind every line. Rebuild it from the public chain without our word. No judgment: shared addresses are ordinary, custodians are common, and this store does not grade operators. Your own address is free once you prove it is yours (GET /api/provenance/self for the challenge), and that free reading ends with an offer to publish it, which you may decline. Delivered in the response.","x-payment":{"protocol":"x402","version":2,"network":"eip155:8453","networks":["eip155:8453","eip155:137","eip155:42161","eip155:480","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"asset":"USDC","price_usdc_options":[5]},"x-payment-info":{"protocol":"x402","protocols":[{"x402":{}}],"price":{"mode":"fixed","amount":"5","currency":"USD"},"x402Version":2,"scheme":"exact","asset":"USDC","accepts":[{"scheme":"exact","network":"eip155:8453","amount":"5000000","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:137","amount":"5000000","asset":"0x3c499c542cef5e3811e1192ce70d8cc03d5c3359","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:42161","amount":"5000000","asset":"0xaf88d065e77c8cc2239327c5edb3a432268e5831","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:480","amount":"5000000","asset":"0x79a02482a880bce3f13e09da970dc34db4cd24d1","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","amount":"5000000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","payTo":"DGxcPrAHL9YM3hW7iXuHFJmr87Zr6AMA4jCYHBpuvMgE","maxTimeoutSeconds":300}],"price_usdc":[5],"max_timeout_seconds":300,"challenge_header":"PAYMENT-REQUIRED","payment_header":"PAYMENT-SIGNATURE","legacy_payment_header":"X-PAYMENT","settlement":"Delivers first, settles after: the payment is presented only once the goods exist, so a failed delivery takes no money.","discovery":"https://scvd.store/.well-known/x402.json","documentation":"https://scvd.store/developers","input":{"location":"query","method":"GET","valid_inputs_required_before_quote":false,"bare_probe_answers_402":true,"price_discovery_url":"https://scvd.store/menu/provenance_check?view=compact","schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","title":"The Company an Address Keeps request","description":"Query parameters for GET /api/buy/provenance_check. Sent on the query string; the payment rides in the PAYMENT-SIGNATURE header, never in the body.","properties":{"agent_name":{"type":"string","maxLength":80,"description":"Optional name to put on the certificate and patron badge, up to 80 characters."},"purpose":{"type":"string","maxLength":280,"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},"address":{"type":"string","pattern":"^\\s*(?:0x[0-9a-fA-F]{40}|[1-9A-HJ-NP-Za-km-z]{32,44})\\s*$","description":"The receiving address to ask about: an EVM address (0x + 40 hex) or a Solana pubkey (base58). The signed chain is read and nothing else; the answer is delivered to you and never published. Your own address is free once proved — GET /api/provenance/self."}},"required":["address"],"additionalProperties":false}}},"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"$ref":"#/components/schemas/DeliveryEnvelope"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"402":{"description":"Payment required: the offer, not a failure. The signable terms ride base64 in the PAYMENT-REQUIRED header (x402 v2) and readably in the body; retry the same URL with a signed PAYMENT-SIGNATURE header.","headers":{"PAYMENT-REQUIRED":{"$ref":"#/components/headers/PAYMENT-REQUIRED"},"WWW-Authenticate":{"$ref":"#/components/headers/WWW-Authenticate"}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/PaymentRequiredChallenge"}}}},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"agent_name","in":"query","schema":{"type":"string","maxLength":80},"example":"friendly-agent","description":"Optional name to put on the certificate and patron badge, up to 80 characters."},{"name":"purpose","in":"query","schema":{"type":"string","maxLength":280},"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},{"name":"address","in":"query","required":true,"schema":{"type":"string","pattern":"^\\s*(?:0x[0-9a-fA-F]{40}|[1-9A-HJ-NP-Za-km-z]{32,44})\\s*$"},"example":"0x1111111111111111111111111111111111111111","description":"The receiving address to ask about: an EVM address (0x + 40 hex) or a Solana pubkey (base58). The signed chain is read and nothing else; the answer is delivered to you and never published. Your own address is free once proved — GET /api/provenance/self."},{"name":"Idempotency-Key","in":"header","required":false,"schema":{"type":"string","minLength":16,"maxLength":128},"description":"Optional. Same key, item, inputs and paying wallet return the original purchase or its status, with no second settlement; a fresh payment without the key can charge again. Echo idempotency.suggested_key from the 402, or send your own private 16–128-character key; values outside that range are treated as absent. Full rule: /developers.","example":"scvd-your-own-high-entropy-value-0001"}],"operationId":"get_api_buy_provenance_check"}},"/api/buy/recurring_patronage":{"get":{"summary":"Hold a standing pass a third party can check is current","description":"A 30-day standing patronage pass. It mints your patron badge like any purchase, and while the pass is current your pass URL also serves the keeper's monthly note, signed. Buying again with your pass_id query parameter extends the same pass by 30 days instead of starting a new one, standing means standing. Delivered in the response.","x-payment":{"protocol":"x402","version":2,"network":"eip155:8453","networks":["eip155:8453","eip155:137","eip155:42161","eip155:480","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"asset":"USDC","price_usdc_options":[3]},"x-payment-info":{"protocol":"x402","protocols":[{"x402":{}}],"price":{"mode":"fixed","amount":"3","currency":"USD"},"x402Version":2,"scheme":"exact","asset":"USDC","accepts":[{"scheme":"exact","network":"eip155:8453","amount":"3000000","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:137","amount":"3000000","asset":"0x3c499c542cef5e3811e1192ce70d8cc03d5c3359","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:42161","amount":"3000000","asset":"0xaf88d065e77c8cc2239327c5edb3a432268e5831","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:480","amount":"3000000","asset":"0x79a02482a880bce3f13e09da970dc34db4cd24d1","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","amount":"3000000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","payTo":"DGxcPrAHL9YM3hW7iXuHFJmr87Zr6AMA4jCYHBpuvMgE","maxTimeoutSeconds":300}],"price_usdc":[3],"max_timeout_seconds":300,"challenge_header":"PAYMENT-REQUIRED","payment_header":"PAYMENT-SIGNATURE","legacy_payment_header":"X-PAYMENT","settlement":"Delivers first, settles after: the payment is presented only once the goods exist, so a failed delivery takes no money.","discovery":"https://scvd.store/.well-known/x402.json","documentation":"https://scvd.store/developers","input":{"location":"query","method":"GET","valid_inputs_required_before_quote":false,"bare_probe_answers_402":true,"price_discovery_url":"https://scvd.store/menu/recurring_patronage?view=compact","schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","title":"Recurring Patronage request","description":"Query parameters for GET /api/buy/recurring_patronage. Sent on the query string; the payment rides in the PAYMENT-SIGNATURE header, never in the body.","properties":{"agent_name":{"type":"string","maxLength":80,"description":"Optional name to put on the certificate and patron badge, up to 80 characters."},"purpose":{"type":"string","maxLength":280,"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},"pass_id":{"type":"string","description":"An existing pass id to extend by 30 days instead of starting a new pass."}},"additionalProperties":false}}},"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"$ref":"#/components/schemas/DeliveryEnvelope"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"402":{"description":"Payment required: the offer, not a failure. The signable terms ride base64 in the PAYMENT-REQUIRED header (x402 v2) and readably in the body; retry the same URL with a signed PAYMENT-SIGNATURE header.","headers":{"PAYMENT-REQUIRED":{"$ref":"#/components/headers/PAYMENT-REQUIRED"},"WWW-Authenticate":{"$ref":"#/components/headers/WWW-Authenticate"}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/PaymentRequiredChallenge"}}}},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"agent_name","in":"query","schema":{"type":"string","maxLength":80},"example":"friendly-agent","description":"Optional name to put on the certificate and patron badge, up to 80 characters."},{"name":"purpose","in":"query","schema":{"type":"string","maxLength":280},"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},{"name":"pass_id","in":"query","schema":{"type":"string"},"description":"An existing pass id to extend by 30 days instead of starting a new pass."},{"name":"Idempotency-Key","in":"header","required":false,"schema":{"type":"string","minLength":16,"maxLength":128},"description":"Optional. Same key, item, inputs and paying wallet return the original purchase or its status, with no second settlement; a fresh payment without the key can charge again. Echo idempotency.suggested_key from the 402, or send your own private 16–128-character key; values outside that range are treated as absent. Full rule: /developers.","example":"scvd-your-own-high-entropy-value-0001"}],"operationId":"get_api_buy_recurring_patronage"}},"/api/buy/trust_profile":{"get":{"summary":"Give my endpoint a standing evidence page at a neutral third party's domain — my passport, chip and history at one URL I can hand to anyone","description":"A standing page about your endpoint at this store's domain for 30 days per purchase, renewable: your live endpoint passport, the freshness chip, and the signed per-host observation history, aggregated at one URL an operator can hand to anyone. The commission record is signed and its evidence hash bound into your purchase certificate. Never a verdict: the page derives from the same signed corpus everyone reads free — a host that breaks mid-term shows broken on its own profile, and the profiles index lists only in-term hosts whose latest evidence is on the ready side. Delivered in the response.","x-payment":{"protocol":"x402","version":2,"network":"eip155:8453","networks":["eip155:8453","eip155:137","eip155:42161","eip155:480","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"asset":"USDC","price_usdc_options":[21]},"x-payment-info":{"protocol":"x402","protocols":[{"x402":{}}],"price":{"mode":"fixed","amount":"21","currency":"USD"},"x402Version":2,"scheme":"exact","asset":"USDC","accepts":[{"scheme":"exact","network":"eip155:8453","amount":"21000000","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:137","amount":"21000000","asset":"0x3c499c542cef5e3811e1192ce70d8cc03d5c3359","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:42161","amount":"21000000","asset":"0xaf88d065e77c8cc2239327c5edb3a432268e5831","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:480","amount":"21000000","asset":"0x79a02482a880bce3f13e09da970dc34db4cd24d1","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","amount":"21000000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","payTo":"DGxcPrAHL9YM3hW7iXuHFJmr87Zr6AMA4jCYHBpuvMgE","maxTimeoutSeconds":300}],"price_usdc":[21],"max_timeout_seconds":300,"challenge_header":"PAYMENT-REQUIRED","payment_header":"PAYMENT-SIGNATURE","legacy_payment_header":"X-PAYMENT","settlement":"Delivers first, settles after: the payment is presented only once the goods exist, so a failed delivery takes no money.","discovery":"https://scvd.store/.well-known/x402.json","documentation":"https://scvd.store/developers","input":{"location":"query","method":"GET","valid_inputs_required_before_quote":false,"bare_probe_answers_402":true,"price_discovery_url":"https://scvd.store/menu/trust_profile?view=compact","schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","title":"The Hosted Profile request","description":"Query parameters for GET /api/buy/trust_profile. Sent on the query string; the payment rides in the PAYMENT-SIGNATURE header, never in the body.","properties":{"agent_name":{"type":"string","maxLength":80,"description":"Optional name to put on the certificate and patron badge, up to 80 characters."},"purpose":{"type":"string","maxLength":280,"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},"url":{"type":"string","format":"uri","description":"Your own x402 endpoint: https, default port, on the public internet, and on the ready side of the census's latest evidence — a failing door is refused before any money moves. Thirty days of standing page per purchase; renewal extends the term. We refuse our own hostname."}},"required":["url"],"additionalProperties":false}}},"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"$ref":"#/components/schemas/DeliveryEnvelope"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"402":{"description":"Payment required: the offer, not a failure. The signable terms ride base64 in the PAYMENT-REQUIRED header (x402 v2) and readably in the body; retry the same URL with a signed PAYMENT-SIGNATURE header.","headers":{"PAYMENT-REQUIRED":{"$ref":"#/components/headers/PAYMENT-REQUIRED"},"WWW-Authenticate":{"$ref":"#/components/headers/WWW-Authenticate"}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/PaymentRequiredChallenge"}}}},"403":{"description":"passport_refused: the supplied endpoint lacks qualifying passport evidence. Nothing charged. Read the response's reason before choosing a target or requesting a free preflight.","content":{"application/problem+json":{"schema":{"$ref":"#/components/schemas/Problem"}},"application/json":{"schema":{"$ref":"#/components/schemas/Problem"}}}},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"agent_name","in":"query","schema":{"type":"string","maxLength":80},"example":"friendly-agent","description":"Optional name to put on the certificate and patron badge, up to 80 characters."},{"name":"purpose","in":"query","schema":{"type":"string","maxLength":280},"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},{"name":"url","in":"query","required":true,"schema":{"type":"string","format":"uri"},"example":"https://your-endpoint.example/api/thing","description":"Your own x402 endpoint: https, default port, on the public internet, and on the ready side of the census's latest evidence — a failing door is refused before any money moves. Thirty days of standing page per purchase; renewal extends the term. We refuse our own hostname."},{"name":"Idempotency-Key","in":"header","required":false,"schema":{"type":"string","minLength":16,"maxLength":128},"description":"Optional. Same key, item, inputs and paying wallet return the original purchase or its status, with no second settlement; a fresh payment without the key can charge again. Echo idempotency.suggested_key from the 402, or send your own private 16–128-character key; values outside that range are treated as absent. Full rule: /developers.","example":"scvd-your-own-high-entropy-value-0001"}],"operationId":"get_api_buy_trust_profile"}},"/api/buy/operator_statement":{"get":{"summary":"Have my receiving address read off the chain four times a day for a month by a party that is not me — who paid, how many, how much — signed pass by pass","description":"Name your receiving address (the wallet query parameter; Base by default, Polygon with network=eip155:137, other supported EVM chains with network=<a name or CAIP-2 from the input contract>, Solana with network=solana) and for 30 days the store's rounds read every USDC transfer in and out of it, straight off the chain, four times a day: each pass picks up at the block after the last one and is signed alone, so the month stitches into one continuous block range and any single pass can be quoted without the rest. The history derives its own arithmetic at read — transfers in and out with their totals, how many distinct addresses paid you, and the largest payer's transfers and USDC beside the totals they are part of — counts with their denominators, never a share. A pass the rounds miss is a gap counted against us on the same page. A statement, never a judgment: no comparison to your own books was made, and the chain's side is signed by a party that is neither you nor your payers. Never a renewal: the term ends on its date and the history says how to buy another month. Delivered in the response.","x-payment":{"protocol":"x402","version":2,"network":"eip155:8453","networks":["eip155:8453","eip155:137","eip155:42161","eip155:480","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"asset":"USDC","price_usdc_options":[21]},"x-payment-info":{"protocol":"x402","protocols":[{"x402":{}}],"price":{"mode":"fixed","amount":"21","currency":"USD"},"x402Version":2,"scheme":"exact","asset":"USDC","accepts":[{"scheme":"exact","network":"eip155:8453","amount":"21000000","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:137","amount":"21000000","asset":"0x3c499c542cef5e3811e1192ce70d8cc03d5c3359","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:42161","amount":"21000000","asset":"0xaf88d065e77c8cc2239327c5edb3a432268e5831","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:480","amount":"21000000","asset":"0x79a02482a880bce3f13e09da970dc34db4cd24d1","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","amount":"21000000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","payTo":"DGxcPrAHL9YM3hW7iXuHFJmr87Zr6AMA4jCYHBpuvMgE","maxTimeoutSeconds":300}],"price_usdc":[21],"max_timeout_seconds":300,"challenge_header":"PAYMENT-REQUIRED","payment_header":"PAYMENT-SIGNATURE","legacy_payment_header":"X-PAYMENT","settlement":"Delivers first, settles after: the payment is presented only once the goods exist, so a failed delivery takes no money.","discovery":"https://scvd.store/.well-known/x402.json","documentation":"https://scvd.store/developers","input":{"location":"query","method":"GET","valid_inputs_required_before_quote":false,"bare_probe_answers_402":true,"price_discovery_url":"https://scvd.store/menu/operator_statement?view=compact","schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","title":"The Operator's Statement request","description":"Query parameters for GET /api/buy/operator_statement. Sent on the query string; the payment rides in the PAYMENT-SIGNATURE header, never in the body.","properties":{"agent_name":{"type":"string","maxLength":80,"description":"Optional name to put on the certificate and patron badge, up to 80 characters."},"purpose":{"type":"string","maxLength":280,"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},"wallet":{"type":"string","pattern":"^\\s*(?:0x[0-9a-fA-F]{40}|[1-9A-HJ-NP-Za-km-z]{32,44})\\s*$","description":"Your receiving address: a 0x address on the selected EVM network, a base58 pubkey on Solana. For 30 days the store's rounds read every USDC transfer in and out of it four times a day, each pass signed alone, payers counted — one chain per statement, named on every pass."},"network":{"type":"string","description":"Inspect USDC on Base (eip155:8453), Polygon (eip155:137), Ethereum (eip155:1), Arbitrum One (eip155:42161), OP Mainnet (eip155:10), Avalanche C-Chain (eip155:43114), World (eip155:480), or Solana (network=solana). Base is the default. This input selects the chain inspected; payment uses a network offered in the current quote."}},"required":["wallet"],"additionalProperties":false}}},"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"$ref":"#/components/schemas/DeliveryEnvelope"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"402":{"description":"Payment required: the offer, not a failure. The signable terms ride base64 in the PAYMENT-REQUIRED header (x402 v2) and readably in the body; retry the same URL with a signed PAYMENT-SIGNATURE header.","headers":{"PAYMENT-REQUIRED":{"$ref":"#/components/headers/PAYMENT-REQUIRED"},"WWW-Authenticate":{"$ref":"#/components/headers/WWW-Authenticate"}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/PaymentRequiredChallenge"}}}},"404":{"$ref":"#/components/responses/NotFound"},"429":{"$ref":"#/components/responses/TooManyRequests"},"500":{"$ref":"#/components/responses/ServerError"}},"parameters":[{"name":"agent_name","in":"query","schema":{"type":"string","maxLength":80},"example":"friendly-agent","description":"Optional name to put on the certificate and patron badge, up to 80 characters."},{"name":"purpose","in":"query","schema":{"type":"string","maxLength":280},"description":"Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."},{"name":"wallet","in":"query","required":true,"schema":{"type":"string","pattern":"^\\s*(?:0x[0-9a-fA-F]{40}|[1-9A-HJ-NP-Za-km-z]{32,44})\\s*$"},"example":"0x843b544bf5f0AA6cbf13E94563874878C98cc4a7","description":"Your receiving address: a 0x address on the selected EVM network, a base58 pubkey on Solana. For 30 days the store's rounds read every USDC transfer in and out of it four times a day, each pass signed alone, payers counted — one chain per statement, named on every pass."},{"name":"network","in":"query","schema":{"type":"string"},"description":"Inspect USDC on Base (eip155:8453), Polygon (eip155:137), Ethereum (eip155:1), Arbitrum One (eip155:42161), OP Mainnet (eip155:10), Avalanche C-Chain (eip155:43114), World (eip155:480), or Solana (network=solana). Base is the default. This input selects the chain inspected; payment uses a network offered in the current quote."},{"name":"Idempotency-Key","in":"header","required":false,"schema":{"type":"string","minLength":16,"maxLength":128},"description":"Optional. Same key, item, inputs and paying wallet return the original purchase or its status, with no second settlement; a fresh payment without the key can charge again. Echo idempotency.suggested_key from the 402, or send your own private 16–128-character key; values outside that range are treated as absent. Full rule: /developers.","example":"scvd-your-own-high-entropy-value-0001"}],"operationId":"get_api_buy_operator_statement"}},"/api/buy/certificate_of_patronage":{"get":{"summary":"Hold a signed certificate that entitles me to nothing whatsoever","description":"For those who wish the store well and want it on paper. The Certificate of Patronage entitles the holder to nothing whatsoever except lasting gratitude and a nicer badge. The purest thing we sell. Delivered in the response.","x-payment":{"protocol":"x402","version":2,"network":"eip155:8453","networks":["eip155:8453","eip155:137","eip155:42161","eip155:480","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"asset":"USDC","price_usdc_options":[20,40,100]},"x-payment-info":{"protocol":"x402","protocols":[{"x402":{}}],"price":{"mode":"dynamic","min":"20","max":"100","currency":"USD"},"x402Version":2,"scheme":"exact","asset":"USDC","accepts":[{"scheme":"exact","network":"eip155:8453","amount":"20000000","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:8453","amount":"40000000","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:8453","amount":"100000000","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:137","amount":"20000000","asset":"0x3c499c542cef5e3811e1192ce70d8cc03d5c3359","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"eip3009"}},{"scheme":"exact","network":"eip155:137","amount":"40000000","asset":"0x3c499c542cef5e3811e1192ce70d8cc03d5c3359","payTo":"0xDD350976B8cfFc65938C0464d39A2C78BE079bd0","maxTimeoutSeconds":300,"extra":{"name":"USD 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