{"uid":"cap_M7u1ESOzLZsFHgHREPanU","slug":"signalharness-evm-fee-breakdown-b17ce6c0","name":"SignalHarness EVM Fee Breakdown","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_fee_breakdown/invoke","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"evm_fee_request":{"type":"string","maxLength":65536,"minLength":2}}},"responseSchema":{"type":"json","example":{"replay":false,"result":{"warnings":["All fee inputs must be supplied in atomic units."],"service_id":"evm_fee_breakdown","fee_breakdown":"{\"base_fee_atomic\":\"1680000\",\"gas_used\":\"21000\",\"priority_fee_atomic\":\"420000\",\"total_fee_atomic\":\"2100000\"}","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_fee_breakdown","executionId":"example-execution","startedAtMs":0,"amountAtomic":"10000","resultSha256":"4471895d0dba5afd5c1118bf78a745c0f97976245b43356fa67dec715ce86964","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_qDkzxmZl33ZYAsyBvJtEo","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 breaks down gas fee components for EVM transactions, returning a structured fee explanation with warnings and evidence scope.","exampleAgentPrompt":"Can you break down the fee components for this EVM transaction — I want to understand exactly what I'm paying in base fee, priority fee, and any other gas costs: {paste raw transaction or fee request data here}.","exampleUseCases":[{"title":"Diagnosing high gas costs","prompt":"This EVM transaction cost way more in gas than I expected — can you break down exactly what the fee components were and flag anything unusual?"},{"title":"DeFi protocol fee audit","prompt":"I'm building a DeFi app and need to understand the full fee breakdown for this smart contract call so I can optimize gas usage — here's the transaction data."},{"title":"User-facing fee explanation","prompt":"My user is confused about why their Base network transaction fee was so high — can you analyze this fee request and give me a plain-English breakdown of each component so I can explain it to them?"}],"resultDescription":"Returns a JSON object containing a structured fee_breakdown string explaining the EVM fee components, a list of warnings about anomalies or caveats, an evidence_scope field indicating the analysis was performed on caller-supplied data, plus a full receipt with payment details, latency, and a SHA-256 result hash for verification.","failureModes":["Invalid or malformed evm_fee_request string returns an error response","Request string exceeds 65,536 character limit — truncation or rejection","Insufficient or ambiguous fee data may result in warnings but no detailed breakdown","Payment failure via x402 protocol prevents execution","Network or service unavailability returns a non-succeeded status"],"whenToPreferThis":"Choose this endpoint when you need a structured, AI-interpreted breakdown of EVM transaction fees — especially when raw gas data is complex or opaque and you need to surface warnings, anomalies, or human-readable explanations. Prefer this over manual gas parsing when working with Base, Ethereum, or other EVM-compatible chains and you want a vetted, receipted analysis with cryptographic result verification.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-16T00:59:42.795Z","isFirstParty":false}