{"uid":"cap_fuf_TDrPq_OSyMdeNmBfI","slug":"logicnodes-evm-logs-c9b8531f","name":"LogicNodes EVM Logs","description":"Exact answers for AI agents: 40+ tools for EVM chains and Aptos, gas on 14 chains, never a guess. Free tier; pay per call in USDC (x402) on 13 networks.","url":"https://logicnodes.io/paid/v1/tools/evm_logs?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"chain":{"type":"string","description":"EVM CAIP-2 chain id such as eip155:8453, or a bare chain id number as a string. Chain names are refused."},"topics":{"type":"array","items":{"type":["string","null"]},"maxItems":4},"address":{"type":"string","description":"0x + 40 hex digits (EIP-55 checksum enforced when mixed-case)"},"toBlock":{"type":"string"},"fromBlock":{"type":"string"}}},"responseSchema":{"type":"json","example":{"ok":true,"tool":"evm_logs"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_11D0_imHl7cjl9fXAbnV3","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetch on-chain event logs for a given EVM contract address and topic filters across a specified block range","exampleAgentPrompt":"Pull all Transfer event logs for the USDC contract at 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 on Ethereum mainnet (eip155:1) from block 20000000 to 20001000 — the Transfer topic is 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef.","exampleUseCases":[{"title":"Track DeFi protocol deposits","prompt":"Get me the Deposit event logs for the Aave V3 pool contract at 0x87870Bca3F3fD6335C3F4ce8392D69350B4fA4E2 on Ethereum (eip155:1) from block 19500000 to 19600000 — the Deposit topic is 0x804c9b842b2748a22bb64b345453a3de7ca54a6ca45ce00d415894979e22897a."},{"title":"Audit NFT mints on Base","prompt":"Fetch Transfer logs from the zero address for the NFT contract 0xd4307e0acd12cf46fd6cf93bc264f5d5d1598792 on Base (eip155:8453) from block 10000000 to 10050000, using topic 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef."},{"title":"Monitor token swaps on Polygon","prompt":"Pull all Swap event logs for the Uniswap V3 pool at 0x45dDa9cb7c25131DF268515131f647d726f50608 on Polygon (eip155:137) from block 55000000 to 55010000, topic 0xc42079f94a6350d7e6235f29174924f928cc2ac818eb64fed8004e115fbcca67."}],"resultDescription":"A JSON response with ok:true and an array of EVM event log objects matching the specified address, topics, and block range — each log includes block number, transaction hash, log index, address, topics array, and raw data field.","failureModes":["Chain name provided instead of CAIP-2 or numeric chain ID — request refused","Address fails EIP-55 checksum validation when mixed-case — rejected","Topics array exceeds 4 items — validation error","fromBlock or toBlock out of range or malformed — error response","Chain ID not supported — unsupported chain error","Payment not provided or insufficient USDC — 402 Payment Required"],"whenToPreferThis":"Choose this endpoint when you need precise, deterministic on-chain event log retrieval for EVM-compatible chains and want pay-per-call USDC pricing without a subscription. It is ideal for AI agents that need exact blockchain data rather than approximations, support CAIP-2 chain identification, and operate across 13+ EVM networks including Base, Ethereum, and Polygon.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-28T06:37:30.761Z","isFirstParty":false,"canonicalSlug":"logicnodes-evm-logs-c9b8531f"}