{"uid":"cap_cb9xFVkZaqQFx5WH931yh","slug":"gpuops-blockchain-transaction-lookup-09f3b63b","name":"GPUOps Blockchain Transaction Lookup","description":"Multi-chain blockchain data API. 7 chains. x402 pay-per-call with USDC on Base.","url":"https://chain.gpuops.io/v1/transaction","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"hash":{"type":"string"},"chain":{"type":"string"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_5AhRXO4kF2yo_6be1S1tT","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Looks up a blockchain transaction by hash and chain, returning transaction details across 7 supported chains, paid per-call with USDC on Base via x402.","exampleAgentPrompt":"Can you look up the transaction with hash 0xabc123...def on Ethereum and tell me the sender, receiver, value, and confirmation status?","exampleUseCases":[{"title":"Verify incoming crypto payment","prompt":"I just received a payment — can you check transaction 0x4e3b...9a1f on the Base chain and confirm it went through and how much USDC was sent?"},{"title":"Audit DeFi trade on Polygon","prompt":"Look up this Polygon transaction hash 0x7f2a...c8d3 and give me the full details — what wallet sent it, what contract it hit, and what the gas fees were."},{"title":"Cross-chain transaction investigation","prompt":"I need to trace transaction 0x1c9d...44ba on Arbitrum — can you pull all the on-chain details including the block number and timestamp?"}],"resultDescription":"Returns structured transaction details for the specified hash on the given chain, including sender and receiver addresses, value transferred, block number, timestamp, confirmation status, gas fees, and other chain-specific metadata.","failureModes":["Invalid or malformed transaction hash returns an error or empty result","Unsupported chain identifier causes a bad request error","Transaction not yet indexed (too recent) may return not found","Payment failure via x402 if USDC balance is insufficient blocks the request","Network-level timeouts if the target chain RPC is slow or unavailable"],"whenToPreferThis":"Choose this endpoint when you need lightweight, pay-per-call transaction lookups across multiple chains without committing to a subscription-based blockchain data provider. Especially useful for agents that only occasionally need on-chain transaction data across heterogeneous chains (up to 7), and where per-call USDC micropayments via x402 are preferable to API key management.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-16T00:41:39.097Z","isFirstParty":false}