{"uid":"cap_1mTzTY73eRbf7QWcGxBRp","slug":"lion-ofac-sanctions-screen-x402-keyless-b1b622a4","name":"LION OFAC Sanctions Screen (x402, keyless)","description":"Keyless off-chain and on-chain data for AI agents. No API key, no signup - payment is the only gate. Pay-per-call in USDC on Base via x402.","url":"https://lion-x402.lionmaster-operations.workers.dev/api/x402/sanctions-screen-json","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["address"],"properties":{"address":{"type":"string","description":"EVM address to OFAC SDN / sanctions screen"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"list":"US Treasury OFAC SDN (Specially Designated Nationals)","as_of":"2026-06-03T00:00:00.000Z","match":"0x8589427373D6D84E98730D7795D8f6f8731FDA16","address":"0x8589427373D6D84E98730D7795D8f6f8731FDA16","asset_id":"LION_OFAC_SANCTIONS_001","resolved":true,"confidence":1,"sanctioned":true,"snapshot_as_of":"2026-06-03","total_sanctioned_addresses":1234}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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_UDWv9yzCiElLNNMBj-viv","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":"Screens a blockchain address against the US Treasury OFAC SDN sanctions list and returns a sanctioned/not-sanctioned verdict with confidence score, no API key required.","exampleAgentPrompt":"Can you check if the wallet address 0x8589427373D6D84E98730D7795D8f6f8731FDA16 is on the OFAC SDN sanctions list? I need to know if it's sanctioned before I proceed with this transaction.","exampleUseCases":[{"title":"Screen wallet before DeFi swap","prompt":"Before I execute this token swap with 0x3f5CE5FBFe3E9af3971dD833D26bA9b5C936f0bE, can you run an OFAC sanctions check on that address? I don't want to interact with a sanctioned entity."},{"title":"Verify recipient for crypto payment","prompt":"I'm about to send USDC to 0xd90e2f925DA726b50C4Ed8D0Fb90Ad053324F31A — can you screen that wallet against the US Treasury OFAC SDN list first to make sure it's safe to pay them?"},{"title":"AML check for new counterparty","prompt":"We just received a transaction from 0x7F367cC41522cE07553e823bf3be79A889debe1B and I need to know if that address is on any OFAC sanctions lists before we process the funds on our end. Can you run a compliance check?"}],"resultDescription":"Returns a JSON object containing: the name of the sanctions list checked (US Treasury OFAC SDN), the snapshot date of the list, the queried address, whether it matched (sanctioned: true/false), a confidence score (0–1), the asset/list ID, the resolution status, and the total number of sanctioned addresses in the dataset.","failureModes":["Invalid or malformed Ethereum address returns an error or unresolved result","Payment failure via x402 blocks the request with a 402 Payment Required response","Stale snapshot if the OFAC list has not been refreshed recently (check snapshot_as_of)","Address not found returns sanctioned: false but resolved: true, not an error","Network or worker timeout on the Cloudflare Workers edge"],"whenToPreferThis":"Use this endpoint when you need a fast, keyless, pay-per-call OFAC sanctions screening for a single blockchain/Ethereum address without signing up for a compliance data provider. Ideal for AI agents in DeFi, crypto payments, or Web3 workflows that need on-demand AML compliance checks at $0.005 per call with no subscription overhead.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T12:45:08.995Z","isFirstParty":false}