{"slug":"api-youraitools-co-counterpartycheck-v1-lite-c425f0","title":"Pre-payment counterparty check for agents","host":"api.youraitools.co","method":"GET","resource":"https://api.youraitools.co/counterpartycheck/v1/lite","category":"company","description":"Pre-payment counterparty check for agents: before paying or approving an EVM (Base, Ethereum, Polygon, Arbitrum) or Solana address, get ok / caution / block with reasons. Screens OFAC SDN and ScamSniffer scam lists, x402 Bazaar payee directory and known labels, and reads the address on-chain (wallet","price_listed":0.005,"price_asked":0.005,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":147,"reported_calls_30d":1,"reported_payers_30d":1,"networks":["eip155:137","eip155:42161","eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"method":"GET","queryParams":{"address":"0x3c1A1E01e790Cd326495631B3b38Bd7068F08d6F","chain":"base","intent":"pay"},"type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET"],"type":"string"},"queryParams":{"properties":{"address":{"description":"Counterparty address: EVM 0x + 40 hex, or a Solana base58 address","type":"string"},"chain":{"description":"Chain of the payment (default base; a base58 address implies solana)","enum":["base","ethereum","polygon","arbitrum","solana"],"type":"string"},"intent":{"description":"What you are about to do (default pay): changes which signals matter, e.g. paying a token contract or approving an EOA","enum":["pay","approve","interact"],"type":"string"}},"required":["address"],"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-10-24","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.005,"price_match":true,"latency_ms":147,"error":null}],"description_full":"Pre-payment counterparty check for agents: before paying or approving an EVM (Base, Ethereum, Polygon, Arbitrum) or Solana address, get ok / caution / block with reasons. Screens OFAC SDN and ScamSniffer scam lists, x402 Bazaar payee directory and known labels, and reads the address on-chain (wallet, contract, token contract, Safe, EIP-7702 delegation, activity, USDC balance).","last_updated":"2026-10-22T16:29:37.523Z","schemes":["exact"]}