{"uid":"cap_SsvMSmuCzZW8Xqdw-VrIK","slug":"tracefast-ethereum-transaction-call-trace-983012bc","name":"TraceFast Ethereum Transaction Call Trace","description":"TraceFast live Ethereum data: every call frame a transaction executed, the order it ran — the caller and target of each, the kind of call, the value and gas it moved, its own outcome, and why it reverted where it did. Path hash: Transaction hash, `0x`-prefixed, 64 hex characters, any case. Query: includeCalldata, limit (see docs). Docs: https://docs.tracefast.xyz/api/trace.md","url":"https://mpp.tracefast.xyz/api/v1/chains/1/traces/:hash?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"properties":{"input":{"required":["method"],"properties":{"method":{"enum":["GET"],"type":"string"},"pathParams":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.1","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":"$0.1/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_gJecGq92ZWNpjV8HPp3No","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.1","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns every call frame a specific Ethereum transaction executed, including caller, target, call type, value, gas, outcome, and revert reason for each frame.","exampleAgentPrompt":"Show me the full call trace for Ethereum transaction 0x4e3a3754410177e6937ef1f84bba68ea139e8d1a8863f77b8de6a12e551e19d — I want every call frame including the caller, target, call type, value moved, gas, and any revert reason.","exampleUseCases":[{"title":"Debug a failed DeFi transaction","prompt":"This transaction 0xabc123...def456 on Ethereum failed — can you pull the full call trace and tell me which internal call reverted and why?"},{"title":"Audit multi-hop token swap flow","prompt":"I need to see every contract that was called during Ethereum tx 0x4e3a3754410177e6937ef1f84bba68ea139e8d1a8863f77b8de6a12e551e19d — show me the caller, target, call type, and value for each frame."},{"title":"Verify value flow in contract interaction","prompt":"For transaction 0xdeadbeef...12345678 on Ethereum, trace all call frames and show me exactly how much ETH moved through each call — I want to confirm no unexpected value transfers happened."}],"resultDescription":"A list of call frames in execution order, each containing: caller address, target address, call type (CALL, DELEGATECALL, STATICCALL, etc.), value transferred, gas supplied and used, outcome (success/failure), and revert reason where applicable.","failureModes":["Transaction hash not found or not yet indexed — returns 404 or empty result","Invalid transaction hash format (not 0x-prefixed 64 hex chars) — returns 400 validation error","Transaction is pending and not yet mined — trace unavailable","Network timeout for deeply nested call trees with many frames","Rate limit exceeded — returns 429"],"whenToPreferThis":"Choose this endpoint when you need internal execution detail for a specific Ethereum transaction — especially for debugging reverts, auditing multi-contract flows, or verifying value transfers across call frames. Prefer this over event log endpoints when you need call-level granularity (not just emitted events) or need to see failed internal calls that emit no logs.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T00:42:01.430Z","isFirstParty":false,"canonicalSlug":"tracefast-ethereum-transaction-call-trace-983012bc"}