{"slug":"factline-dev-v1-payee-check-2de305","title":"x402 seller verification before paying","host":"factline.dev","method":"GET","resource":"https://factline.dev/v1/payee/check","category":"company","description":"x402 seller verification before paying: payTo wallet OFAC screen, domain, uptime. Use before an agent pays an x402 endpoint it has not used before: reads the seller's own 402 challenge, screens every payTo wallet against the OFAC list, checks the domain (age, setup), Factline's daily uptime probes a","price_listed":0.01,"price_asked":0.01,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":53,"reported_calls_30d":2,"reported_payers_30d":2,"networks":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"method":"GET","queryParams":{"url":"https://factline.dev/v1/kyb/check"},"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":{"company":{"description":"Optional company behind the seller: adds the register record and a sanctions screen of the company","type":"string"},"country":{"description":"Optional ISO country of that company, e.g. GB","type":"string"},"url":{"description":"The x402 endpoint (or origin) you are about to pay, e.g. https://factline.dev/v1/kyb/check","type":"string"},"wallet":{"description":"Optional payTo wallet address to screen (read from the endpoint's 402 when url is given)","type":"string"}},"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":"2026-10-18","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.01,"price_match":true,"latency_ms":53,"error":null}],"description_full":"x402 seller verification before paying: payTo wallet OFAC screen, domain, uptime. Use before an agent pays an x402 endpoint it has not used before: reads the seller's own 402 challenge, screens every payTo wallet against the OFAC list, checks the domain (age, setup), Factline's daily uptime probes and, with company, the register record and EU/UN/UK/US sanctions. Returns allow, review or deny, plus a trust-provider block (decision, score, evidence, ttl). Input: url, optional wallet, company,...","last_updated":"2026-10-12T01:06:12.567Z","schemes":["exact"]}