{"uid":"cap_ncPbwiYLEY6A5LVjacY_h","slug":"x402-web-probe-blockchain-transaction-lookup-hub-europe-germany-99a5a535","name":"x402 Web Probe – Blockchain Transaction Lookup (Hub Europe, Germany)","description":"Pay-per-call website uptime/latency/TLS checks and fetch-to-Markdown, measured from Hub Europe (Germany). USDC on Base via x402. No account or API key.","url":"https://superstone.ccwu.cc:8443/v1/chain/tx?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["chain","hash"],"properties":{"hash":{"type":"string","example":"0x142d15b73dfbf96c4a75a62079e8a1f4999916229734e0c28feafc752323e599","description":"0x transaction hash"},"chain":{"type":"string","example":"base","description":"base or ethereum"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"to":"0x...","from":"0x...","block":36000000,"status":"success","gas_used":"52000","value_eth":"0","confirmations":12}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_-ZR8vS-IGIJGAdRJGBnBQ","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Looks up on-chain transaction details (status, block, gas, confirmations) for a given transaction hash on Base or Ethereum, paid per-call via USDC on Base using x402.","exampleAgentPrompt":"Can you look up the Base transaction 0x142d15b73dfbf96c4a75a62079e8a1f4999916229734e0c28feafc752323e599 and tell me its status, how many confirmations it has, and how much gas was used?","exampleUseCases":[{"title":"Confirm a crypto payment was received","prompt":"I sent USDC to a client on Base — the tx hash is 0x142d15b73dfbf96c4a75a62079e8a1f4999916229734e0c28feafc752323e599. Can you check whether the transaction succeeded and how many confirmations it has?"},{"title":"Debug a failed Ethereum transaction","prompt":"My Ethereum transaction 0xabc123...def456 might have failed. Can you pull up the on-chain details — status, gas used, and which block it landed in?"},{"title":"Audit trail for a DeFi trade","prompt":"I need to verify a Base chain swap: tx hash 0x9f8e7d6c5b4a3210fedcba9876543210fedcba9876543210fedcba9876543210. What were the from and to addresses, the ETH value, and what block was it included in?"}],"resultDescription":"Returns a JSON object containing the transaction's to/from addresses, block number, success/failure status, gas used, ETH value transferred, and number of on-chain confirmations.","failureModes":["Invalid or malformed transaction hash returns an error","Transaction hash not found on the specified chain","Unsupported chain value (must be 'base' or 'ethereum')","Payment not completed or x402 handshake fails, blocking the request","Transaction still pending with zero confirmations"],"whenToPreferThis":"Use this endpoint when you need lightweight, pay-per-call on-chain transaction lookups without setting up a full node, indexer, or API key. Ideal for agents that only occasionally need to verify a transaction's status or metadata on Base or Ethereum and want to pay micro-amounts per query via x402.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-22T12:31:43.560Z","isFirstParty":false,"canonicalSlug":"x402-web-probe-blockchain-transaction-lookup-hub-europe-germany-99a5a535"}