{"slug":"kya-lonestaroracle-xyz-check-a36a32","title":"KYA / counterparty check for a wallet (and optional name)","host":"kya.lonestaroracle.xyz","method":"GET","resource":"https://kya.lonestaroracle.xyz/check","category":"company","description":"KYA / counterparty check for a wallet (and optional name): OFAC + wallet risk + signed verdict","price_listed":0.1,"price_asked":0.1,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":630,"reported_calls_30d":1,"reported_payers_30d":1,"networks":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"method":"GET","queryParams":{"chain":"base","name":"OFAC","wallet":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"},"type":"http"},"output_schema":{"category":"compliance","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.","name":"KYACheck","properties":{"input":{"properties":{"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"properties":{"chain":{"default":"base","description":"EVM chain for on-chain risk: base, eth, arb, poly, bsc","title":"Chain","type":"string"},"name":{"description":"Optional agent, company or person name to screen against OFAC","title":"Name","type":"string"},"wallet":{"description":"Agent/counterparty wallet address (EVM 0x... or any OFAC-listed crypto address)","title":"Wallet","type":"string"}},"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"checked_at":"2026-09-24T17:00:00Z","ofac_name":null,"ofac_wallet":{"currency":"ETH","listed":true,"program":"CYBER2","sdn_name":"EXAMPLE ENTITY"},"reasons":["wallet is on the OFAC SDN list (EXAMPLE ENTITY, program CYBER2)"],"receipt":{"receipt":{"checked_at":"2026-09-24T17:00:00Z","service":"KYA Check","verdict":"BLOCK"},"signature":{"alg":"secp256k1-eip191","sig":"0x...","signer":"0x54aB6b8Ddbedc057F230D1b78E6cd4677d304E18"}},"verdict":"BLOCK","wallet_risk":{"chain":"base","risk_flags":["sanctioned"],"risk_label":"critical","risk_score":10}},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"tags":["kya","sanctions","ofac","compliance","wallet-risk"],"type":"object","version":"1.0.0"},"history":[{"day":"2026-09-25","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.1,"price_match":true,"latency_ms":630,"error":null}],"description_full":"KYA / counterparty check for a wallet (and optional name): OFAC + wallet risk + signed verdict","last_updated":"2026-09-25T11:24:42.122Z","schemes":["exact"]}