{"uid":"cap_ydyzBIN5TiyZonOgrohCE","slug":"chainquery-combinerawtransaction-ee7e6b96","name":"chainquery combinerawtransaction","description":"chainquery Bitcoin RPC: pay-per-call Bitcoin Core over x402, no API key. Combine partially-signed raw transactions into one fully-signed transaction. Bitcoin Core combinerawtransaction.","url":"https://x402.chainquery.com/v1/rpc/combinerawtransaction","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","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{"params":{"type":"string","description":"optional: JSON-encoded array of positional RPC params"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"result":{"description":"combinerawtransaction result"}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_231Fl1b1FC7kL4ZmgH--C","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Combines multiple partially-signed raw Bitcoin transactions into a single fully-signed transaction using Bitcoin Core's combinerawtransaction RPC","exampleAgentPrompt":"I have two partially-signed raw Bitcoin transaction hex strings from different co-signers and I need to combine them into one fully-signed transaction — can you call combinerawtransaction with these two hex strings as the params array?","exampleUseCases":null,"resultDescription":"Returns the Bitcoin Core combinerawtransaction result: a hex-encoded fully-signed raw transaction that merges the signatures from all provided partially-signed transactions","failureModes":["Missing or malformed params array results in RPC error","Transactions that do not share the same inputs/outputs cannot be combined and return an error","Providing non-hex or invalid raw transaction strings returns a parse error","Insufficient signatures to produce a fully valid transaction returns an incomplete result","Payment of $0.005 USDC not fulfilled results in HTTP 402 rejection before RPC execution"],"whenToPreferThis":"Use this endpoint when you have multiple partially-signed raw Bitcoin transactions (from different co-signers in a multisig setup) and need to merge them into a single fully-signed transaction, without needing an API key — paying only $0.005 USDC per call via x402","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T18:47:30.258Z","isFirstParty":false}