{"slug":"oraclepost-higgsfield-app-api-verify-40d9d5","title":"Is this Base address a contract or a wallet, and is it active?","host":"oraclepost.higgsfield.app","method":"GET","resource":"https://oraclepost.higgsfield.app/api/verify","category":"code","description":"Is this Base address a contract or a wallet, and is it active? Live read: code size (contract vs EOA), transaction count (nonce), ETH and USDC balance, at the latest block. Pass ?address=0x... . Useful before paying an unknown payTo. No third-party API, no cache.","price_listed":0.001,"price_asked":0.001,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":1842,"reported_calls_30d":1,"reported_payers_30d":1,"networks":["eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"method":"GET","queryParams":{"address":"EVM address on Base, 0x-prefixed"},"type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"properties":{"method":{"const":"GET"},"queryParams":{"properties":{"address":{"description":"EVM address on Base, 0x-prefixed","type":"string"}},"required":["address"],"type":"object"},"type":{"const":"http"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-09-24","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.001,"price_match":true,"latency_ms":1842,"error":null}],"description_full":"Is this Base address a contract or a wallet, and is it active? Live read: code size (contract vs EOA), transaction count (nonce), ETH and USDC balance, at the latest block. Pass ?address=0x... . Useful before paying an unknown payTo. No third-party API, no cache.","last_updated":"2026-09-16T19:46:20.785Z","schemes":["exact"]}