• Gasless JPYC payments

  Shop pays

  OpenPay usage fee

  1%minimum 2 JPYC

  OpenPay covers the customer’s gas (payment QR, register and order links)

• Mobile orders

  Shop pays

  Mobile order fee

  1%pre-orders 3%

  Orders paid on the order page. Pre-orders can add it to the customer’s total

• JPYC tips

  Sender pays

  Gas equivalent

  about 2 JPYC

  The sender adds it. No fee to receive

• JPYC digital goods and APIs

  Buyer pays

  x402 fee

  1%minimum 1 JPYC

  Added to the price by the buyer, including mobile orders an AI agent pays over x402

• Move sales to another wallet

  Shop pays

  Fee

  2 JPYCper transfer

  When moving to another wallet of your own. Added on top of the amount (JPYC on Polygon)

The sale amount less the usage fee lands directly in your wallet (we never hold funds). Customers pay network fees for standard payments. See the Terms for details.

See per-feature pricing and examples

• Are payments truly gas-free?

  Yes. In gasless mode, customers don’t need POL or ETH — they pay with just their JPYC or USDC balance. The cost depends on the method. For JPYC gasless payments, where OpenPay covers the gas, the store pays 1% of the payment with a 2 JPYC minimum. When the shop’s device pays the actual gas, the OpenPay usage fee is 0 (JPYC on Polygon, Kaia and Avalanche only; by design, 1 wei = 0.000000000000000001 JPYC is added to the customer’s payment per transfer and sent to OpenPay). With USDC gasless, the gas is paid in USDC (the shop chooses whether to add it to the customer’s total or cover it), and a compatible wallet is required. Payments from a different chain are not gasless. See the pricing page for tips and other details.

• What are JPYC and USDC?

  JPYC is an electronic payment instrument issued by JPYC Inc., a funds transfer service provider, and can be redeemed at JPYC EX at 1 JPYC = 1 JPY. USDC is a US dollar-pegged stablecoin issued by Circle (1 USDC ≈ 1 USD). OpenPay does not issue, redeem, buy, sell, exchange or manage either one; it provides the tools shops use to receive them.

• Can I receive both JPYC and USDC?

  Both are supported: JPYC for JPY-denominated receipts, USDC for Web3 or international customers. JPYC supports Polygon / Kaia / Avalanche / Ethereum (standard mode only on Ethereum); USDC supports Base / Arbitrum / Optimism / Polygon / Ethereum / Avalanche / Arc. Choose in the QR builder; Circle CCTP V2 handles other source chains (for destinations other than Arc, Circle's transfer fee [up to 0.1% of the payment; up to 0.001 USDC for payments under 1 USDC] is deducted from what the shop receives rather than added for the sender, and no OpenPay fee applies; payments into Arc are forwarded by Circle; the sender pays Circle's forwarding fee on top and OpenPay collects nothing; paying out of Arc to other chains is not supported). Arc is standard-only: gas is paid in USDC, so no separate token is needed.

• What if the customer has no wallet?

  Recommend MetaMask or Rabby on desktop, and Myna Wallet / HashPort Wallet / MetaMask Mobile on phones. Multiple wallets are detected automatically.

• How do I convert JPYC / USDC to JPY?

  JPYC can be redeemed for 1 yen at JPYC EX; USDC can be sold via SBI VC Trade and other Japanese exchanges. Links are on the Receive page.

• Where is transaction history stored?

  History stays in browser LocalStorage, not on OpenPay servers. Export CSV or verify recorded transaction hashes on Etherscan / Polygonscan.

• Can I use OpenPay for business invoices such as development or maintenance fees?

  Yes. Beyond in-store QR payments, you can request development fees, production fees, or monthly maintenance fees. Send a payment link with the amount and funds settle directly to your wallet, with accounting CSV and e-receipts for your records.

• Can I offer a discount only to customers paying in JPYC?

  You can set one with the discount on the register and payment QR. Whether you may do so depends on your merchant agreements, such as those for cards. See the guide for details.