{"uid":"cap_POIoA60o4i_Sp8pRM3l85","slug":"arakel-ap2-payment-receipt-verifier-e0d04975","name":"ARAKEL AP2 Payment Receipt Verifier","description":"$0.001 OFAC destination-wallet preflight for autonomous agents, plus machine-verifiable official-source evidence over x402 USDC on Base.","url":"https://proof.arakelproof.space/v1/ap2/payment-receipt-verify?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"issuer_jwk":{"type":"object","description":"Caller-trusted receipt issuer P-256 public JWK"},"receipt_jwt":{"type":"string","description":"AP2 ES256 Payment Receipt JWT"},"expected_aud":{"type":"string"},"mandate_chain":{"type":"string","description":"AP2 dSD-JWT mandate chain; for receipt verification provide this or expected_reference"},"expected_nonce":{"type":"string"},"mandate_context":{"type":"object"},"trusted_root_jwk":{"type":"object","description":"Caller-trusted P-256 root public JWK"},"expected_reference":{"type":"string","description":"For receipt verification provide this or mandate_chain"},"expected_transaction_id":{"type":"string"},"expected_open_checkout_hash":{"type":"string"}}},"responseSchema":{"type":"json","example":{"schema":"arakel.ap2.payment-receipt-verify.v1","decision":"VERIFIED_UNDER_SUPPLIED_ISSUER_KEY","signature":{"alg":"Ed25519"},"verified_under_supplied_issuer_key":true}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_E9PGaKRml5hxWSzDPpHof","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Cryptographically verifies an AP2 ES256 Payment Receipt JWT against a trusted issuer key and mandate chain, returning a machine-verifiable VERIFIED/REJECTED decision with Ed25519 signature.","exampleAgentPrompt":"Verify this AP2 payment receipt JWT for me — use the issuer JWK I have on file, check it against the mandate chain, and confirm whether the receipt is authentic before I release the goods.","exampleUseCases":[{"title":"Autonomous agent pre-release payment check","prompt":"Before delivering the API response to this paying client, verify their AP2 payment receipt JWT using my trusted issuer public key and expected transaction ID so I know the USDC payment actually cleared correctly."},{"title":"Marketplace escrow receipt audit","prompt":"I need to confirm that the payment receipt JWT submitted by the buyer is valid — can you verify it against the expected open checkout hash and mandate chain and tell me if it checks out?"},{"title":"Post-payment compliance attestation","prompt":"After collecting a USDC payment over x402, verify the receipt JWT using my P-256 root JWK and the expected nonce to generate a machine-verifiable attestation I can attach to this transaction record."}],"resultDescription":"A JSON object containing a schema identifier (arakel.ap2.payment-receipt-verify.v1), a decision field (e.g. VERIFIED_UNDER_SUPPLIED_ISSUER_KEY or a rejection reason), a boolean verified_under_supplied_issuer_key flag, and a signature block indicating Ed25519 attestation of the result — enabling downstream systems to trust the verification outcome cryptographically.","failureModes":["Invalid or malformed receipt_jwt returns a rejection decision","Mismatched expected_nonce or expected_aud causes verification failure","Missing both mandate_chain and expected_reference returns an error","Untrusted or incorrect issuer_jwk results in failed verification","Expired JWT causes rejection with expiry-related decision code","Malformed JWK object causes a 400-level parse error"],"whenToPreferThis":"Choose this endpoint when your agent needs cryptographic, machine-verifiable proof that an x402/AP2 USDC payment receipt is authentic — particularly when you hold the issuer public JWK and need an attested Ed25519-signed decision you can pass downstream. Prefer this over simple on-chain balance checks when you need proof of a specific receipt's integrity, mandate chain linkage, or open checkout hash binding.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T06:45:58.192Z","isFirstParty":false,"canonicalSlug":"arakel-ap2-payment-receipt-verifier-e0d04975"}