{"uid":"cap_Fy54yPHggsnEvmcZaTNZ0","slug":"nexusapi-crypto-transaction-trace-9a53ea28","name":"NexusAPI Crypto Transaction Trace","description":"Crypto, AI, Social Media, Finance, Weather, Tools & more. Pay per call in USDC on Base. No API keys.","url":"https://nexus-api-virid.vercel.app/api/crypto/transaction/trace","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"query":{"type":"string","description":"Search query or input parameter"}}},"responseSchema":{"type":"object","description":"API response data"},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.088035","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":"$0.088035/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.088035","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.088035","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_WzAgmOJNuV2fXLkOxCo2J","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.088035","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Traces and analyzes a blockchain transaction by hash or query, returning detailed execution and call trace data","exampleAgentPrompt":"Can you trace transaction 0x4e3a8f... on the blockchain and show me all the internal calls and contract interactions that happened?","exampleUseCases":[{"title":"Debugging a failed DeFi transaction","prompt":"I sent a transaction to a DeFi protocol but it failed — can you trace 0xabc123def456... and tell me exactly where and why it reverted?"},{"title":"Auditing contract interactions in a trade","prompt":"Can you pull the full call trace for transaction 0x789fde... and show me every internal contract call and token transfer that took place?"},{"title":"Investigating a suspicious on-chain transfer","prompt":"I need to investigate this transaction hash 0x2f4a91... — can you trace it and show me all the addresses and contracts it touched?"}],"resultDescription":"A structured breakdown of the transaction's execution trace, including internal calls, contract interactions, value transfers, method signatures called, gas usage per step, and any reverts or errors encountered during execution.","failureModes":["Invalid or malformed transaction hash returns an error or empty result","Transaction not found on the target chain returns a not-found error","Network congestion or RPC timeout causes slow or failed response","Query string too vague yields incomplete or irrelevant trace data","Payment failure in USDC on Base prevents the call from completing"],"whenToPreferThis":"Use this endpoint when you need to inspect the internal execution details of a specific blockchain transaction — especially for debugging failed smart contract calls, auditing DeFi interactions, or forensic investigation of on-chain activity. Prefer this over simple transaction lookup endpoints when you need more than basic metadata (sender, receiver, value) and require the full execution trace including internal calls.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T06:39:17.614Z","isFirstParty":false}