{"slug":"api-chainmarket-api-workers-dev-api-crypto-basescan-contract-c1ed84","title":"Recent event logs of a contract on Base (chain 8453) from public RPC","host":"api.chainmarket-api.workers.dev","method":"GET","resource":"https://api.chainmarket-api.workers.dev/api/crypto/basescan-contract-events","category":"market","description":"Recent event logs of a contract on Base (chain 8453) from public RPC: block, time order, transaction hash, log index, event name (signature database), topics and data, with ERC-20/721 Transfer and Approval decoded to from/to/value. Look back up to 5,000 blocks (~2.8 h); optional event-signature filt","price_listed":0.002,"price_asked":null,"state":"effects","state_label":"Not tested: has real-world effects","checks_7d":0,"answered_7d":0,"latency_ms_median":null,"reported_calls_30d":2,"reported_payers_30d":2,"networks":["eip155:10","eip155:137","eip155:143","eip155:42161","eip155:42220","eip155:480","eip155:5042","eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","stellar:pubnet","xrpl:0"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"method":"GET","queryParams":{"address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","blocks":20},"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":{"address":{"description":"Contract address 0x… (e.g. USDC on Base 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913)","type":"string"},"blocks":{"description":"How many recent blocks to scan, 1-5000 (default 500; Base makes a block every 2 s)","type":"integer"},"limit":{"description":"Max logs returned, newest first, 1-200 (default 50)","type":"integer"},"topic0":{"description":"Optional event signature hash (0x + 64 hex) to keep only that event, e.g. the Transfer topic","type":"string"}},"required":["address"],"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":[],"description_full":"Recent event logs of a contract on Base (chain 8453) from public RPC: block, time order, transaction hash, log index, event name (signature database), topics and data, with ERC-20/721 Transfer and Approval decoded to from/to/value. Look back up to 5,000 blocks (~2.8 h); optional event-signature filter. Internal transactions are not included.","last_updated":"2026-10-24T00:11:41.962Z","schemes":["exact"]}