Polygon PoS · native USDC (legacy receiver)
Network eip155:137 · USDC contract 0x3c499c542cef5e3811e1192ce70d8cc03d5c3359 · seller wallet 0x318f6c04477221558d9d68ee052eb1af79e99a0d. Requires 20 confirmations. Do not send bridged USDC.e.
Buy one-time prepaid API credits. The seller receives tokens directly at its owner-declared wallet; the API credits unlock only after the buyer submits a confirmed exact on-chain transfer receipt. No automatic debit or subscription.
Network eip155:137 · USDC contract 0x3c499c542cef5e3811e1192ce70d8cc03d5c3359 · seller wallet 0x318f6c04477221558d9d68ee052eb1af79e99a0d. Requires 20 confirmations. Do not send bridged USDC.e.
Network eip155:137 · USDC contract 0x3c499c542cef5e3811e1192ce70d8cc03d5c3359 · seller wallet 0xf0c39261192686cdcce529b9919a37863de4c77c. Requires 20 confirmations. Choose polygon_owner in the invoice request; this is a separate receiver, not an automatic replacement of the legacy wallet.
Network eip155:42161 · native Circle USDC contract 0xaf88d065e77c8cc2239327c5edb3a432268e5831 · seller wallet 0xf0c39261192686cdcce529b9919a37863de4c77c. Requires 30 confirmations. Choose arbitrum; bridged USDC.e is not accepted.
Network eip155:56 · token contract 0x55d398326f99059ff775485246999027b3197955 · seller wallet 0x318f6c04477221558d9d68ee052eb1af79e99a0d. Requires 15 confirmations. This is the BEP-20 Binance-Peg asset, not native BNB.
1. Inspect the live product catalog. 2. Create an invoice with a product id, your payer address and your selected network. 3. Send the exact listed token and amount from that address. 4. POST the chain transaction hash to the confirmation endpoint. The service verifies contract, sender, recipient, amount and confirmations, and automatically credits your API key.
POST /wallet/evm/start
{"network":"arbitrum","product":"agent_micro","payer":"YOUR_EVM_ADDRESS"}
POST /wallet/evm/confirm
{"invoice_id":"INVOICE_ID","transaction_hash":"YOUR_ONCHAIN_TX_HASH"}Save the returned API key privately. Creating an invoice or submitting an unconfirmed transaction is not a payment. Buyer pays network gas; seller never needs to sign or spend. If your wallet doesn't support the exact token, use another available payment rail.