{"uid":"cap_05QKGttpxGPAMojS-SzEr","slug":"beggar-bot-btc-outspends-lookup-base-mainnet-fa238ed6","name":"Beggar Bot BTC Outspends Lookup (Base mainnet)","description":"Paid: /v1/verify, /v1/risk, /v1/receipt cost $0.01 USDC per call on Base mainnet via x402 (payTo 0x719227f384b66BFEF00093D6d8d32fA9dC2B40e7); utilities analyze Base mainnet (USDC 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) by default, network=base-sepolia optional; /v1/receipt/verify and discovery files are free. Operator: Beggar Bot.","url":"https://beggar-bot-demand.beggarbot.workers.dev/v1/btcoutspends?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"json"},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","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":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_q0-mARH6_9qpt7hbDolZ8","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches Bitcoin transaction outspend data for a given transaction or output via the Beggar Bot utility service on Base mainnet","exampleAgentPrompt":"Can you check whether the outputs of Bitcoin transaction a1075db55d416d3ca199f55b6084e2115b9345e16c5cf302fc80e9d5fbf5d48d have been spent and show me the spending transaction details?","exampleUseCases":[{"title":"Verify Bitcoin UTXO Spend Status","prompt":"I need to know if any outputs from Bitcoin transaction 4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b have been spent — can you check the outspend data for me?"},{"title":"Trace Bitcoin Payment Confirmation","prompt":"We sent a Bitcoin payment in txid b6f6991d03df0e2e04dafffcd6bc418aac66049e2cd74b80f14ac86d1921f88 — can you check if those outputs have been claimed by a spending transaction yet?"},{"title":"Audit Bitcoin Transaction Output Chain","prompt":"For my blockchain audit, I need the outspend details for output index 0 of Bitcoin transaction f4184fc596403b9d638783cf57adfe4c75c605f6356fbc91338530e9831e9e16 — please fetch that from Beggar Bot."}],"resultDescription":"Returns JSON with outspend information for the queried Bitcoin transaction outputs, including whether each output has been spent, the spending transaction ID, and input index details if applicable.","failureModes":["Invalid or malformed Bitcoin transaction ID returns an error response","Transaction ID not found on Bitcoin mainnet returns a not-found error","Missing required transaction ID parameter returns a 400 bad request","Payment not completed via x402 returns a 402 Payment Required response","Network congestion or worker timeout may return a 503 or timeout error"],"whenToPreferThis":"Use this endpoint when you need to verify Bitcoin UTXO spend status or trace the spending transaction for a specific Bitcoin output, particularly when already using the Beggar Bot suite of blockchain utilities and paying via x402 on Base mainnet with USDC.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-11-04T06:38:15.052Z","isFirstParty":false,"canonicalSlug":"beggar-bot-btc-outspends-lookup-base-mainnet-fa238ed6"}