{"uid":"cap_pMXNL0wHFhAzQj5UwujmG","slug":"kyacheck-ofac-wallet-risk-screening-0a1d08a8","name":"KYACheck – OFAC & Wallet Risk Screening","description":"KYA / counterparty check for a wallet (and optional name): OFAC + wallet risk + signed verdict","url":"https://kya.lonestaroracle.xyz/check?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"name":"KYACheck","tags":["kya","sanctions","ofac","compliance","wallet-risk"],"type":"object","version":"1.0.0","category":"compliance","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{"name":{"type":"string","title":"Name","description":"Optional agent, company or person name to screen against OFAC"},"chain":{"type":"string","title":"Chain","default":"base","description":"EVM chain for on-chain risk: base, eth, arb, poly, bsc"},"wallet":{"type":"string","title":"Wallet","description":"Agent/counterparty wallet address (EVM 0x... or any OFAC-listed crypto address)"}}}}},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"reasons":["wallet is on the OFAC SDN list (EXAMPLE ENTITY, program CYBER2)"],"receipt":{"receipt":{"service":"KYA Check","verdict":"BLOCK","checked_at":"2026-09-24T17:00:00Z"},"signature":{"alg":"secp256k1-eip191","sig":"0x...","signer":"0x54aB6b8Ddbedc057F230D1b78E6cd4677d304E18"}},"verdict":"BLOCK","ofac_name":null,"checked_at":"2026-09-24T17:00:00Z","ofac_wallet":{"listed":true,"program":"CYBER2","currency":"ETH","sdn_name":"EXAMPLE ENTITY"},"wallet_risk":{"chain":"base","risk_flags":["sanctioned"],"risk_label":"critical","risk_score":10}}}}},"description":"Know-your-agent (KYA) / counterparty check, made agent-callable. Before your agent pays, hires or trusts another agent, one x402 call screens that agent's wallet against the US Treasury OFAC SDN list - including the ~500 crypto addresses OFAC publishes, matched exactly - optionally screens its name/entity against the SDN and alternate-names lists, scores the wallet's on-chain risk (GoPlus address-security flags such as sanctioned, mixer, phishing, money laundering), and returns PASS / REVIEW / BLOCK with plain-language reasons. The verdict is signed as an LSO Receipt (secp256k1 / EIP-191) so the result can be verified independently and passed on-chain: ethers.verifyMessage must recover LSO's published signer. Compliance is checked off-chain; the verified result travels. $0.10 in USDC on Base or Solana via x402. Sources: OFAC SDN (refreshed daily), GoPlus, public RPC."},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.1","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":"$0.1/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_oKmTlenMqRKQBd1ZiGcdS","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.1","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Screens an EVM wallet address (and optional entity name) against the OFAC SDN list and on-chain risk signals, returning a signed PASS/REVIEW/BLOCK verdict with plain-language reasons","exampleAgentPrompt":"Before I pay this agent, can you run a KYA compliance check on their wallet 0xAbC123...789 on Base and also screen the name 'Acme Trading LLC' against OFAC — I need a signed PASS/BLOCK verdict before I proceed?","exampleUseCases":[{"title":"Pre-payment agent wallet screening","prompt":"Before sending that 500 USDC payment, screen the receiving agent's wallet 0xDEAD...BEEF on Base against OFAC and any on-chain risk flags — I only want to proceed if it comes back PASS."},{"title":"Onboarding a new vendor entity","prompt":"I'm about to onboard a vendor called 'Nova Logistics Ltd' — can you run their name through OFAC SDN screening and also check their wallet address 0x1234...ABCD on Ethereum for sanctions or mixer flags?"},{"title":"Autonomous agent trust verification","prompt":"My orchestration agent wants to hire a sub-agent whose wallet is 0x9999...FFFF on Arbitrum — run a KYA check on it and give me the signed verdict so I have an auditable record of the compliance check."}],"resultDescription":"Returns a JSON object containing: a verdict string (PASS, REVIEW, or BLOCK), plain-language reasons array, OFAC wallet match details (listed flag, SDN name, program, currency), OFAC name match result, on-chain wallet risk assessment (risk score 0–10, risk label, risk flags such as sanctioned/mixer/phishing), checked_at timestamp, and a cryptographically signed receipt (secp256k1/EIP-191 signature with signer address) providing an auditable, tamper-evident compliance record.","failureModes":["Invalid or malformed wallet address (0x... format required) returns an error","Unsupported chain value returns an error — must be one of base, eth, arb, poly, bsc","Missing wallet query parameter — wallet is required even if name is optional","Network or upstream OFAC data fetch failure may return a 5xx error","Payment failure (x402 protocol) if insufficient USDC balance — call will not be processed","Rate limiting or abuse detection may result in rejection"],"whenToPreferThis":"Choose this endpoint when an AI agent or automated workflow needs a single-call, machine-readable compliance verdict before executing a payment, hiring a sub-agent, or onboarding a counterparty. It uniquely combines OFAC SDN exact-match wallet screening (~500 crypto addresses), name/entity screening against SDN and alternate-names lists, and on-chain risk scoring (GoPlus flags), all in one response with a cryptographically signed receipt — making it suitable for auditable agentic workflows. Prefer it over manual OFAC lookup tools when you need a programmatic, signed, structured verdict rather than a human-readable web interface.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T00:30:27.911Z","isFirstParty":false,"canonicalSlug":"kyacheck-ofac-wallet-risk-screening-0a1d08a8"}