{"uid":"cap_Xk_GiSHmKZ6LgOrzHT-xX","slug":"arakel-payment-risk-check-ba2a05ea","name":"ARAKEL Payment Risk Check","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/x402/payment-risk-check?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"tx":{"type":"string","description":"Base transaction hash"},"service_id":{"type":"string"},"request_hash":{"type":"string","description":"SHA-256 style 32-byte request hash for receipt binding"},"response_hash":{"type":"string","description":"SHA-256 style 32-byte response hash for receipt binding"},"expected_payee":{"type":"string","description":"Expected USDC recipient"},"expected_payer":{"type":"string","description":"Optional expected USDC payer"},"min_confirmations":{"type":"integer","maximum":200,"minimum":1},"expected_amount_usdc":{"type":"string","description":"Expected USDC decimal amount; provide this or expected_amount_atomic"},"expected_amount_atomic":{"type":"string","description":"Expected USDC amount in 6-decimal atomic units; provide this or expected_amount_usdc"}}},"responseSchema":{"type":"json","example":{"flags":[],"schema":"arakel.x402.payment-risk-check.v1","payment":{"decision":"VERIFIED","verified":true},"signature":{"alg":"Ed25519"},"risk_level":"low","risk_score":0}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_A4FR4LhcRAvE2Dsg3TUVA","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Performs a preflight OFAC sanctions risk check on a destination wallet address and verifies a Base USDC payment transaction with machine-signed evidence over x402.","exampleAgentPrompt":"Before we send that USDC payment on Base, screen the destination wallet 0xAbC...123 for OFAC sanctions risk and verify the transaction hash 0xdef...456 was confirmed with at least 3 confirmations and the expected amount of 50 USDC went to the right payee.","exampleUseCases":[{"title":"Preflight sanctions check for agent payment","prompt":"I'm about to have my agent send 100 USDC on Base to wallet 0x9F3...d21 — can you run an OFAC sanctions screen on that destination address first and tell me the risk level before we proceed?"},{"title":"Verify completed USDC payment with signed receipt","prompt":"Can you verify that Base transaction 0x7a2...b9c sent exactly 25.50 USDC to 0x4E1...f08 with at least 2 confirmations, and give me a machine-signed receipt binding the payment to my request hash 0xabc...111 and response hash 0xdef...222?"},{"title":"Compliance audit trail for autonomous agent workflow","prompt":"My agent just completed a USDC payment on Base with tx hash 0x3c8...e44 — verify it settled to the correct payee 0x6D2...a17 for 10 USDC and get me a cryptographically signed compliance attestation I can attach to the audit log."}],"resultDescription":"Returns a JSON object containing a risk_score (numeric), risk_level (e.g. 'low'), OFAC flags array, a payment decision ('VERIFIED' or otherwise), a verified boolean, and an Ed25519 signature binding the payment to the caller-supplied request/response hashes. Schema field is 'arakel.x402.payment-risk-check.v1'.","failureModes":["Transaction hash not found or not yet confirmed on Base — returns unverified decision","Destination wallet matches OFAC sanctions list — returns high risk_level with flags populated","Insufficient confirmations — verification withheld until min_confirmations threshold met","Mismatched payee or amount — payment decision returned as unverified","Invalid or malformed wallet address input — request rejected","x402 payment not included or insufficient — endpoint returns 402 Payment Required"],"whenToPreferThis":"Choose this endpoint when an autonomous agent needs both a compliance sanctions screen (OFAC) AND cryptographic payment verification in a single call over the x402 micropayment protocol. Prefer it over generic blockchain explorers when you need a machine-signed, audit-ready receipt binding the payment to specific request/response hashes. Best suited for agent-to-agent payment workflows on Base where regulatory compliance evidence is required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T00:34:39.410Z","isFirstParty":false,"canonicalSlug":"arakel-payment-risk-check-ba2a05ea"}