Write an on-chain attestation (Ethereum Attestation Service on Base) that binds a call you paid for to the bytes you received: the tool slug, sha256 of the JSON response, the settlement chain and transaction, the payer, the time served and the price, signed by this server's wallet. Give it the settlement transaction from the PAYMENT-RESPONSE (or Payment-Receipt) header of any settled call; the attestation UID and its public page on base.easscan.org come back.
| Network | Scheme | Amount | Pay To |
|---|---|---|---|
| Base | exact | $0.05 USDC | 0xaBF4...a9D0 |
| Polygon | exact | $0.05 USDC | 0xaBF4...a9D0 |
| Arbitrum One | exact | $0.05 USDC | 0xaBF4...a9D0 |
| eip155:143 | exact | 0.05 tokens | 0xaBF4...a9D0 |
| eip155:43114 | exact | 0.05 tokens | 0xaBF4...a9D0 |
| eip155:1329 | exact | 0.05 tokens | 0xaBF4...a9D0 |
| Optimism | exact | $0.05 USDC | 0xaBF4...a9D0 |
| eip155:4663 | exact | 0.05 tokens | 0xaBF4...a9D0 |
| Celo | exact | 0.05 tokens | 0xaBF4...a9D0 |