{"uid":"cap_zNScBcv-zOJh4TAVxZ4-j","slug":"bitcoin-network-fee-estimator-c5ea72cb","name":"Bitcoin Network Fee Estimator","description":"Bitcoin fee rates for next-block to economy confirmation, mempool congestion level and the cost of a typical transaction.","url":"https://bitcoin-network.x402tookit.com/btc-fee-estimate?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":[],"properties":{"vbytes":{"type":"integer","description":"Transaction size in vbytes (default 141, a 1-in 2-out native SegWit send)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"asOf":{"type":["null","string"]},"cost":{"type":["null","object"],"properties":{"hour":{"type":["null","object"],"properties":{"usd":{"type":["null","number"]},"sats":{"type":["null","number"]}}},"economy":{"type":["null","object"],"properties":{"usd":{"type":["null","number"]},"sats":{"type":["null","number"]}}},"fastest":{"type":["null","object"],"properties":{"usd":{"type":["null","number"]},"sats":{"type":["null","number"]}}},"halfHour":{"type":["null","object"],"properties":{"usd":{"type":["null","number"]},"sats":{"type":["null","number"]}}}}},"source":{"type":["null","string"]},"vbytes":{"type":["null","number"]},"reasons":{"type":["array","null"],"items":{"type":"string"}},"summary":{"type":["null","string"]},"verdict":{"type":["null","string"]},"degraded":{"type":["boolean","null"]},"sourceUrl":{"type":["null","string"]},"congestion":{"type":["null","string"]},"disclaimer":{"type":["null","string"]},"notChecked":{"type":["array","null"],"items":{"type":"string"}},"hourSatPerVb":{"type":["null","number"]},"mempoolVsize":{"type":["null","number"]},"backlogBlocks":{"type":["null","number"]},"mempoolTxCount":{"type":["null","number"]},"economySatPerVb":{"type":["null","number"]},"fastestSatPerVb":{"type":["null","number"]},"minimumSatPerVb":{"type":["null","number"]},"halfHourSatPerVb":{"type":["null","number"]}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.03","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":"$0.03/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_ZXqUOUuT_D1vB89pr9ouc","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.03","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns current Bitcoin fee rates (sat/vB) for fastest/half-hour/hour/economy confirmation tiers, mempool congestion level, and estimated USD/sats cost for a transaction of given size.","exampleAgentPrompt":"What are the current Bitcoin fee rates right now — how much in sats per vbyte and USD would a standard 141-vbyte SegWit transaction cost for next-block, half-hour, hour, and economy confirmation, and is the mempool congested?","exampleUseCases":[{"title":"Cheapest time to send Bitcoin","prompt":"Is the Bitcoin mempool backed up right now, and what's the economy fee rate in sats per vbyte if I'm okay waiting for a slower confirmation?"},{"title":"Real-time fee for wallet transaction","prompt":"I'm about to send a Bitcoin transaction that's 250 vbytes — how much will it cost in sats and USD to get it confirmed in the next block versus within an hour?"},{"title":"Mempool monitoring for trading bot","prompt":"Check the current Bitcoin mempool congestion level and give me the fastest and half-hour fee rates in sat/vB so I know how urgently to set fees on my next outgoing transaction."}],"resultDescription":"Returns fee rates in sat/vB for four confirmation speed tiers (fastest, halfHour, hour, economy), estimated transaction cost in sats and USD for each tier, mempool congestion label, mempool vsize, mempool tx count, backlog block depth, a human-readable summary and verdict, data source URL, and a timestamp. Optionally scoped to a custom transaction size in vbytes (default 141).","failureModes":["Upstream mempool data source unavailable — response may include degraded flag and reduced field set","Invalid vbytes parameter type returns schema validation error","Fee data may be stale if upstream provider is lagging — check asOf timestamp","Network timeout if Bitcoin node or mempool API is temporarily unreachable"],"whenToPreferThis":"Use this endpoint when you need live, multi-tier Bitcoin fee estimates with both sat/vB rates and fiat USD costs in a single call, especially when you also need mempool congestion context. It is preferable over raw mempool.space or similar when you want a pre-interpreted verdict/summary alongside the numbers, and when you need cost estimates scoped to a specific transaction size in vbytes.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-29T13:12:39.695Z","isFirstParty":false,"canonicalSlug":"bitcoin-network-fee-estimator-c5ea72cb"}