kompy
REST API · MCP server

The Walmart data API
you can build on

Live prices, stock, sellers, and full price history for the whole Walmart catalog, as clean JSON. Call it over REST or plug it into agents over MCP. Same key, same credits.

Read the docs
openclawkompy mcp
❯scan walmart clearance for anything I can flip on amazon at 30%+ roi
⏺kompy.search(q="clearance", sort=price_drop)
└ 200 · 41ms · 128 results
⏺kompy.history(product=581432, range=30d)
└ 200 · 38ms
⏺ 14 flips clear your 30% bar. best: Samsung 65" 4K TV
AMZ $612WMT $447.99$164 gap

$447.99 in, $612.00 out. ~$89/unit after fees. 34% roi

⏺watching hourly. I'll ping you when a new flip clears the bar.

OpenClaw, Claude Code, Cursor, or your own stack. Anything that speaks MCP or HTTP.

Works with your stack

Plain HTTP or MCP, same API

Every operation is a documented REST endpoint you can call from any language. The same operations also ship as a first-party MCP server, so agents get them as callable tools. Deterministic schemas, small payloads, structured errors, either way.

claude mcp add kompy --transport http \
  https://api.kompy.io/mcp \
  --header "X-API-Key: wmp_…"
What your agent sees
  • kompy.product

    Full product record. Price, stock, seller, rating.

  • kompy.search

    Query the live catalog with sort and filters.

  • kompy.history

    Per-seller price and stock history for any SKU.

  • kompy.reviews

    Customer reviews and ratings for any product.

Works withMCPLangChainOpenAI Agents SDKn8nplain HTTP

Historical data

Every price, remembered

We record the marketplace around the clock: price, stock, and buy-box changes for every SKU we track. The full Walmart price history, per seller, back to day one. No other Walmart API keeps this.

  • Hourly snapshots
  • Per-seller granularity
  • Back to day one
Explore the history endpoint
GET /v1/walmart/history/offers12 months
$389 · Black Friday$447.99 · today
AugOctDecFebAprJun

The API

One request, an entire product back

Plain HTTP with predictable JSON shapes. No SDK required, and every response carries a request_id you can trace.

curl https://api.kompy.io/api/v1/walmart/product/123456 \
  -H "X-API-Key: wmp_…"
Response200 · 38ms
{
  "data": {
    "id":        "123456",
    "name":      "Samsung 65\" 4K UHD Smart TV",
    "brand":     "Samsung",
    "price":     447.99,
    "currency":  "USD",
    "stock":     true,
    "rating":    4.5,
    "reviews":   2847,
    "seller":    "Walmart.com",
    "captured":  "2026-07-02T14:22:18Z"
  },
  "meta": {
    "request_id": "req_01HKQ…",
    "latency_ms": 38
  }
}
Read the API docsOpenAPI spec

Pricing

Start small, scale later

No hidden fees. Upgrade when you're ready.

Hobby

$49.99/month

For individuals getting started

14,000 credits/mo

  • API access
  • Email support

Pro

Popular
$149.99/month

For professionals and small teams

45,000 credits/mo

  • API access
  • Priority support

Business

$499.99/month

For large teams with custom needs

180,000 credits/mo

  • API access
  • Priority support
  • Custom integrations
Compare all plans and features

Start issuing real requests today

Every account starts with free credits. No forced upgrade, no dark patterns, just the same fast API at every tier.

~14 seconds to first response