{"uid":"cap_IUo1IwsQ0ShtuLwCHP0qj","slug":"ofac-sdn-blockchain-address-screener-5b8f02e1","name":"OFAC SDN Blockchain Address Screener","description":"Signed multi-chain OFAC SDN address screening (USDC on Base or Solana)","url":"https://sanctions.nsgoods.org/screen","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","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","required":["address"],"properties":{"chain":{"type":"string","description":"Chain hint, e.g. ethereum/bitcoin/solana/tron. Advisory — matching is global by address value."},"address":{"type":"string","description":"Raw blockchain address (EVM 0x-hex, or base58/bech32 for BTC/SOL/TRX/etc.)."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","required":["address","sanctioned","verdict","signed_by","signature"],"properties":{"chain":{"type":["string","null"]},"address":{"type":"string"},"verdict":{"enum":["deny","clean"],"type":"string"},"signature":{"type":"string"},"signed_by":{"type":"string"},"sanctioned":{"type":"boolean"},"matched_label":{"type":["string","null"]},"sdn_snapshot_at":{"type":"string"}}}}}}},"responseSchema":null,"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_s2O3aV7bZ0KsmPPeuXT6I","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Screens a blockchain address against the OFAC Specially Designated Nationals (SDN) list and returns a cryptographically signed verdict indicating whether the address is sanctioned","exampleAgentPrompt":"Before I send this USDC payment, can you screen the Ethereum address 0x1234abcd... against the OFAC SDN list and give me a signed verdict confirming whether it's sanctioned or clean?","exampleUseCases":[{"title":"Pre-payment compliance check","prompt":"I'm about to send USDC to 0xAbCd1234... on Ethereum — can you check that address against the OFAC sanctions list and get me a signed verdict before I proceed?"},{"title":"Solana wallet AML screening","prompt":"Screen this Solana wallet address 9xQeWvG3NL... for OFAC sanctions and tell me whether it's flagged, and include the cryptographic signature so I can log it for our compliance records."},{"title":"Automated DeFi onboarding gate","prompt":"Before we whitelist this new user's Bitcoin address bc1qxy2k... in our platform, check it against the OFAC SDN list and return a signed clean or deny verdict we can store as proof of due diligence."}],"resultDescription":"A JSON object containing: the queried address, a boolean 'sanctioned' field, a verdict string ('clean' or 'deny'), the signing key identity ('signed_by'), a cryptographic signature over the result, the optional chain hint, the matched SDN label if applicable, and a timestamp of the SDN snapshot used for the check.","failureModes":["Missing 'address' query parameter returns a 400-level error","Malformed or invalid address format may return an error or an unmatched result","SDN snapshot may be slightly stale if not recently refreshed (sdn_snapshot_at indicates age)","Network or service unavailability returns a 5xx error","Payment failure or insufficient USDC balance causes a 402 Payment Required response","Unsupported chain format may result in advisory mismatch since matching is global by address value"],"whenToPreferThis":"Choose this endpoint when you need a cryptographically signed, auditable OFAC sanctions verdict for a blockchain address — particularly when compliance records requiring non-repudiable proof are needed. It supports multi-chain addresses (EVM, Bitcoin, Solana, Tron, etc.) and charges only $0.005 USDC per call, making it cost-effective for high-volume screening. Prefer it over unverified or unsigned screening tools when you need a verifiable signature for audit trails or regulatory documentation.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T12:38:03.364Z","isFirstParty":false}