{"uid":"cap_swzvBu-RR4G9FOy8hIg4V","slug":"bitcoin-fee-estimates-57c456fa","name":"Bitcoin Fee Estimates","description":"Bitcoin network fee rates in sat/vB for next block, 30 minutes, 1 hour and economy, plus mempool size, block height and the cost of a typical payment. Use right before sending BTC.","url":"https://bess-x402.onrender.com/v1/crypto/btc-fees?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","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","required":[],"properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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_rATmJkjb2A94GjB8hb9cn","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":"Returns current Bitcoin network fee rates in sat/vB for multiple urgency tiers (next block, 30 min, 1 hour, economy), plus mempool size, block height, and typical payment cost.","exampleAgentPrompt":"Before I send this Bitcoin payment, can you check the current BTC network fees — specifically what sat/vB rate I'd need for next-block confirmation, and what the cheapest economy rate is right now?","exampleUseCases":[{"title":"Pre-send fee check for Bitcoin wallet","prompt":"I'm about to send 0.05 BTC to a friend — what's the current sat/vB fee I should set to get it confirmed within the next block, and what would the total fee cost me?"},{"title":"Timing a large BTC transfer cheaply","prompt":"I'm not in a rush to send this Bitcoin but want to minimize fees — what's the economy fee rate right now and how backed up is the mempool?"},{"title":"Monitoring Bitcoin network congestion","prompt":"Keep an eye on Bitcoin network fees for me and let me know if the next-block fee rate drops below 20 sat/vB so I know it's a good time to send."}],"resultDescription":"A JSON object containing fee rates in sat/vB for four urgency tiers (next block, ~30 minutes, ~1 hour, economy), current mempool size, latest block height, and the estimated cost in fiat/BTC of a typical payment transaction.","failureModes":["Upstream Bitcoin node or mempool data source is unavailable — returns 5xx error","Stale data if mempool feed is delayed","Rate limiting or payment failure on x402 if USDC balance insufficient","No input parameters accepted; any query params are ignored silently"],"whenToPreferThis":"Use this endpoint immediately before broadcasting a Bitcoin transaction when you need real-time, tiered fee recommendations across four urgency levels (next block through economy). Prefer it over generic crypto data APIs when you specifically need mempool depth and sat/vB estimates rather than price data. The bundled typical-payment cost figure is useful for user-facing fee previews without additional computation.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-30T07:01:06.998Z","isFirstParty":false,"canonicalSlug":"bitcoin-fee-estimates-57c456fa"}