{"uid":"cap_MsvjFKrfrVcU2HT9bXBYc","slug":"nativebtc-bitcoin-transaction-insight-d8dba652","name":"NativeBTC Bitcoin Transaction Insight","description":"Unified Bitcoin transaction analysis: fee verdict, mempool state, RBF bump plan, and Core v31 template check.","url":"https://api.nativebtc.org/v1/bitcoin/insight","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"txid":{"type":"string","pattern":"^[0-9a-fA-F]{64}$","description":"Bitcoin transaction ID as 64 lowercase or uppercase hex characters."},"action":{"enum":["analyze","broadcast_signed_replacement"],"type":"string","description":"Analyze the transaction or relay a user-signed replacement transaction."},"address":{"type":"string","description":"Bitcoin address such as bc1q..., bc1p..., 1..., or 3...."},"targetBlocks":{"type":"number","minimum":1,"description":"Desired confirmation target in blocks."},"signedReplacementHex":{"type":"string","description":"User-signed raw Bitcoin replacement transaction hex. FastPath relays only; it never signs or holds funds."}}},"responseSchema":{"type":"json","example":{"bump":{"method":"rbf_signed_replacement","available":true,"additionalFeeSats":110,"signsOrCustodiesFunds":false},"success":true,"summary":"Effective fee rate 2 sat/vB is at or above the 1 sat/vB target.","verdict":"healthy_for_target","templateCheck":{"mode":"live_cached","source":"core_v31_optimizer_cache","inBaselineTemplate":false,"inOptimizedTemplate":false}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_2lLGCdUVtvD-SkVX0N-xI","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Analyzes a Bitcoin transaction to produce a fee verdict, current mempool state, RBF bump plan, and Bitcoin Core v31 block template compatibility check.","exampleAgentPrompt":"Analyze Bitcoin transaction a3f8c1d2e4b56789abcdef0123456789abcdef0123456789abcdef0123456789ab — I want a fee verdict, the current mempool state, an RBF bump plan targeting confirmation within 3 blocks, and a Bitcoin Core v31 template compatibility check.","exampleUseCases":null,"resultDescription":"Returns a unified insight report including: fee adequacy verdict (overpaying/underpaying/appropriate), current mempool congestion state, an actionable RBF fee-bump plan with suggested replacement fee rate, and a Bitcoin Core v31 block template compatibility assessment for the given transaction.","failureModes":["Invalid txid format (not 64 hex characters) returns a validation error","Transaction not found in mempool or blockchain returns not-found error","Invalid action enum value returns bad request","signedReplacementHex malformed or invalid returns relay error","targetBlocks below minimum of 1 returns validation error","Payment not received or x402 flow incomplete returns 402 Payment Required"],"whenToPreferThis":"Use this endpoint when you need a single unified call to diagnose a Bitcoin transaction — combining fee analysis, mempool context, RBF bump planning, and Core v31 template checking in one response. Prefer over manual mempool explorers or separate fee-estimation APIs when you need structured, actionable output and RBF replacement guidance in one shot.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:30:21.126Z","isFirstParty":false}