{"slug":"chain-openverbs-com-v1-logs-cccf48","title":"Query a contract's event logs over a bounded block range via `eth_getLogs`","host":"chain.openverbs.com","method":"POST","resource":"https://chain.openverbs.com/v1/logs","category":"market","description":"Query a contract's event logs over a bounded block range via `eth_getLogs`: filter by `address` (required) and optional `topics`, get back raw logs (topics, data, block, tx hash, log index) with ERC-20/721 Transfer logs auto-decoded to `{from, to, value}`. Block span is capped (large windows are cla","price_listed":0.006,"price_asked":0.006,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":458,"reported_calls_30d":1,"reported_payers_30d":1,"networks":["eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"body":{},"bodyType":"json","method":"POST","type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"body":{"additionalProperties":false,"properties":{"address":{"description":"Contract address to query logs for (required — bounds the query).","pattern":"^0x[0-9a-fA-F]{40}$","type":"string"},"chain":{"description":"EVM chain to query. One of: ethereum, base, arbitrum, optimism, polygon. Default \"ethereum\".","enum":["ethereum","base","arbitrum","optimism","polygon"],"type":"string"},"fromBlock":{"description":"Start block (decimal or 0x-hex; not a tag).","type":["string","integer"]},"limit":{"description":"Max logs to return (default 1000).","maximum":5000,"minimum":1,"type":"integer"},"toBlock":{"description":"End block (decimal or 0x-hex) or \"latest\" (default). Max 5000-block span.","type":["string","integer"]},"topics":{"description":"Optional topic filters (topic0 = event signature hash). Up to 4; null matches any.","items":{"pattern":"^0x[0-9a-fA-F]{64}$","type":["string","null"]},"maxItems":4,"type":"array"}},"type":"object"},"bodyType":{"enum":["json","form-data","text"],"type":"string"},"method":{"enum":["POST"],"type":"string"},"type":{"const":"http","type":"string"}},"required":["type","method","bodyType","body"],"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-09-24","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.006,"price_match":true,"latency_ms":458,"error":null}],"description_full":"Query a contract's event logs over a bounded block range via `eth_getLogs`: filter by `address` (required) and optional `topics`, get back raw logs (topics, data, block, tx hash, log index) with ERC-20/721 Transfer logs auto-decoded to `{from, to, value}`. Block span is capped (large windows are clamped); results are capped by `limit`. Reads live on-chain data with automatic endpoint fallback.","last_updated":"2026-09-13T13:20:04.548Z","schemes":["exact"]}