{"uid":"cap_cyJsAgSw8Pzqo5A2VU_KI","slug":"signalharness-evm-log-inventory-6db293b4","name":"SignalHarness EVM Log Inventory","description":"Explore 330 pay-per-call x402 API services and 27 agent-native digital products, with Base USDC pricing, secure Polar checkout, and free discovery.","url":"https://signalharness.ai/api/agent/services/evm_log_inventory/invoke","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"evm_log_inventory_request":{"type":"string","maxLength":65536,"minLength":2}}},"responseSchema":{"type":"json","example":{"replay":false,"result":{"warnings":["Inventory is limited to caller-supplied log records."],"service_id":"evm_log_inventory","log_inventory":"{\"by_address\":{\"0x0000000000000000000000000000000000000001\":2},\"by_topic0\":{\"0xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\":1,\"0xbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\":1},\"log_count\":2}","evidence_scope":"caller_supplied_data"},"status":"succeeded","receipt":{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","usage":[],"status":"succeeded","network":"eip155:8453","artifacts":[],"endedAtMs":0,"latencyMs":0,"paymentId":"example-payment","receiptId":"example-receipt","requestId":"example-request","serviceId":"evm_log_inventory","executionId":"example-execution","startedAtMs":0,"amountAtomic":"10000","resultSha256":"9de0b25bbeec2e306b89cf36d03ea46e13c5a82b62af6dd8c8e1ffce78b0e629","serviceVersion":"1.0.0","settlementReference":"0x0000000000000000000000000000000000000000000000000000000000000000"},"artifacts":[],"requestId":"example-request","executionId":"example-execution"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_MfyXgIjFl6uG-PNtgxQaV","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Analyzes and inventories EVM (Ethereum Virtual Machine) event logs from caller-supplied data, returning a structured log inventory with warnings and evidence scope.","exampleAgentPrompt":"Can you inventory these EVM event logs from my smart contract transaction and tell me what events were emitted and if there are any warnings? Here's the raw log data: [paste log string here].","exampleUseCases":[{"title":"Audit smart contract event logs","prompt":"I have a bunch of raw EVM logs from a DeFi transaction on Base — can you run them through SignalHarness and give me a full inventory of every event that was emitted, along with any warnings?"},{"title":"Debug failed contract interaction","prompt":"My smart contract call produced some logs I don't understand. Can you inventory these EVM logs and flag any warnings so I can figure out what went wrong?"},{"title":"Classify logs for on-chain monitoring","prompt":"I'm building an alert system and need to catalog the event logs from this EVM transaction — can you parse and inventory them so I know exactly what log types are present and what the evidence scope is?"}],"resultDescription":"Returns a JSON object containing a log_inventory field with the structured catalog of EVM event logs, a list of warnings encountered during analysis, an evidence_scope field indicating the data came from caller-supplied input, and a full execution receipt with payment ID, request ID, latency, and result hash for auditability.","failureModes":["Input string too short (below 2 characters) or too long (above 65536 characters) returns a validation error","Malformed or non-EVM log data may produce empty inventory or warnings without useful output","Payment failure via x402 will block execution and return a 402 response","Service unavailability returns a failed status in the receipt object"],"whenToPreferThis":"Choose this endpoint when you have raw EVM event log data from an Ethereum-compatible chain and need a structured, cataloged inventory of those logs with warnings — particularly useful for auditing, debugging, or monitoring smart contract interactions on networks like Base. Prefer this over generic log parsers when you need an agent-native, pay-per-call service with a verifiable receipt and result hash.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T13:07:12.959Z","isFirstParty":false}