{"slug":"keyronne-com-api-chain-tx-fba811","title":"Look up a transaction and its receipt on Ethereum, Base, Arbitrum, Optimism, Pol","host":"keyronne.com","method":"POST","resource":"https://keyronne.com/api/chain-tx","category":"market","description":"Look up a transaction and its receipt on Ethereum, Base, Arbitrum, Optimism, Polygon, or BNB Chain: status (success/reverted/pending), from/to, value, block, nonce, gas used and price, log count, and any contract created. Public JSON-RPC, no API keys. POST a JSON body like: {\"chain\":\"base\",\"hash\":\"0","price_listed":0.003,"price_asked":0.003,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":34,"reported_calls_30d":2,"reported_payers_30d":2,"networks":["eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"body":{"chain":"base","hash":"0xb498053e345acd227657ef2e3de7d9fd9b861d673368419c4b18cfaea20365c8"},"bodyType":"json","method":"POST","type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"properties":{"body":{"properties":{"chain":{"enum":["ethereum","base","arbitrum","optimism","polygon","bsc"],"type":"string"},"hash":{"description":"Transaction hash (0x + 64 hex).","type":"string"}},"required":["chain","hash"],"type":"object"},"bodyType":{"enum":["json"],"type":"string"},"method":{"enum":["POST"],"type":"string"},"type":{"const":"http","type":"string"}},"type":"object"},"output":{"properties":{"blockNumber":{"type":"integer"},"chain":{"type":"string"},"from":{"type":"string"},"gas":{"type":"object"},"hash":{"type":"string"},"logs":{"type":"integer"},"status":{"type":"string"},"to":{"type":"string"},"value":{"type":"object"}},"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-09-24","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.003,"price_match":true,"latency_ms":34,"error":null}],"description_full":"Look up a transaction and its receipt on Ethereum, Base, Arbitrum, Optimism, Polygon, or BNB Chain: status (success/reverted/pending), from/to, value, block, nonce, gas used and price, log count, and any contract created. Public JSON-RPC, no API keys. POST a JSON body like: {\"chain\":\"base\",\"hash\":\"0xb498053e345acd227657ef2e3de7d9fd9b861d673368419c4b18cfaea20365c8\"}","last_updated":"2026-09-08T08:28:53.612Z","schemes":["exact"]}