{"slug":"api-x402risk-com-v1-address-screen-ac171c","title":"Pay-to / counterparty address screen for Base","host":"api.x402risk.com","method":"POST","resource":"https://api.x402risk.com/v1/address-screen","category":"company","description":"Pay-to / counterparty address screen for Base: exact match against OFAC SDN published digital currency addresses (daily refresh, list date included), contract vs EOA, Blockscout verification, first-seen age and tx count, lookalike (address-poisoning) check vs an optional compare_to, labels, and a bl","price_listed":0.005,"price_asked":0.005,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":784,"reported_calls_30d":0,"reported_payers_30d":0,"networks":["eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"body":{"address":"0x098B716B8Aaf21512996dC57EB0615e2383E2f96"},"bodyType":"json","method":"POST","type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"body":{"additionalProperties":false,"properties":{"address":{"description":"EVM address to screen (Base, chain 8453)","pattern":"^0x[0-9a-fA-F]{40}$","type":"string"},"compare_to":{"description":"Optional intended recipient address; flags a lookalike (address-poisoning) match","pattern":"^0x[0-9a-fA-F]{40}$","type":"string"}},"required":["address"],"type":"object"},"bodyType":{"enum":["json","form-data","text"],"type":"string"},"method":{"enum":["POST","PUT","PATCH"],"type":"string"},"type":{"const":"http","type":"string"}},"required":["type","method","bodyType","body"],"type":"object"},"output":{"properties":{"example":{"properties":{"activity":{"description":"outgoing_tx_count, tx_count_indexed, first_seen_at, first_seen_age_days","type":"object"},"address":{"type":"string"},"block_number":{"type":["integer","null"]},"cached":{"type":"boolean"},"chain":{"type":"string"},"contract":{"description":"verified (Blockscout), name, proxy_type, creator, creation_tx, created_at","type":["object","null"]},"disclaimer":{"type":"string"},"eip7702_delegated_eoa":{"type":"boolean"},"errors":{"type":"array"},"is_contract":{"type":["boolean","null"]},"labels":{"items":{"type":"object"},"type":"array"},"lookalike":{"description":"compare_to, prefix_match_hex, suffix_match_hex, lookalike","type":["object","null"]},"product":{"type":"string"},"reasons":{"items":{"type":"string"},"type":"array"},"sanctioned":{"description":"Exact match to an OFAC SDN published digital currency address","type":"boolean"},"sanctions":{"description":"matches[], list, list_date, list_fetched_at, source_url","type":"object"},"schema_version":{"type":"string"},"sources":{"type":"array"},"status":{"enum":["ok","partial","error"],"type":"string"},"verdict":{"enum":["block","caution","ok"],"type":"string"}},"required":["schema_version","address","status","verdict","reasons","sanctioned","disclaimer"],"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-09-28","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.005,"price_match":true,"latency_ms":784,"error":null}],"description_full":"Pay-to / counterparty address screen for Base: exact match against OFAC SDN published digital currency addresses (daily refresh, list date included), contract vs EOA, Blockscout verification, first-seen age and tx count, lookalike (address-poisoning) check vs an optional compare_to, labels, and a block/caution/ok verdict. $0.005 USDC. Screening aid only, not a compliance clearance or legal advice.","last_updated":"2026-09-28T16:33:19.011Z","schemes":["exact"]}