{"resource":"https://x402-echo-service.onrender.com/chain/tx","service":"Transaction Lookup","areas":["onchain_reads"],"answering":true,"http_status":402,"latency_ms":153,"price_usdc":0.001,"buyers_30d":1,"calls_30d":1,"description":"Look up a transaction on Base by hash. POST {\"hash\":\"0x...\"} and receive its status, block number, from and to addresses, value, gas used and effective gas price. Returns a clear not-found rather than an empty object when the hash is unknow","id":"3c52f2bdff77","category":"Blockchain reads","accuracy":null,"tool_calls":null,"checked_day":"2026-10-11","page":"https://velliumandco.com/sellers/3c52f2bdff77"}