{"uid":"cap_TPTAUko5nwjbgKfym28gG","slug":"bitcoin-mempool-fee-rates-140502c8","name":"Bitcoin Mempool Fee Rates","description":"Bitcoin network snapshot from mempool.space: recommended fee rates (sat/vB) for fastest, half-hour, hour and economy confirmation, plus the current chain tip height. Live network data; no prices.","url":"https://api.chainmarket-api.workers.dev/api/finance/mempool-bitcoin?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":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"source":"https://mempool.space/api/v1/fees/recommended","checkedAt":"2026-10-23T09:36:13.253Z","tipHeight":972749,"feeRatesSatPerVb":{"hour":1,"economy":1,"fastest":2,"minimum":1,"halfHour":1}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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_0quE6QQ1zL-5ufhUEBp6C","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 mempool recommended fee rates in sat/vbyte across different priority tiers, sourced from mempool.space","exampleAgentPrompt":"What are the current Bitcoin mempool fee rates? I want to know how much I should set for fastest confirmation versus a cheaper hour-long wait.","exampleUseCases":[{"title":"Optimal fee for urgent BTC transfer","prompt":"I need to send Bitcoin urgently — what's the current fastest fee rate in sat/vbyte so my transaction confirms in the next block?"},{"title":"Cost-conscious low-priority BTC send","prompt":"I'm not in a rush to send some Bitcoin. What's the economy or minimum fee rate right now so I can save on fees?"},{"title":"Monitoring mempool congestion for DCA bot","prompt":"Check the current Bitcoin mempool fee levels — I want to know the fastest, half-hour, and hour fee rates so my bot can decide whether network conditions are cheap enough to execute a buy."}],"resultDescription":"Returns a JSON object with the current Bitcoin block tip height, the timestamp of the check, the source URL (mempool.space), and recommended fee rates in sat/vbyte for five priority tiers: fastest, halfHour, hour, economy, and minimum.","failureModes":["Upstream mempool.space API unavailable — may return 502 or stale data","Network timeout from Cloudflare Worker — returns error with no charge","Unexpected schema changes from mempool.space could cause parsing errors"],"whenToPreferThis":"Use this endpoint when you need real-time Bitcoin fee rate data without signing up for an API key or managing credentials. It is pay-per-call via x402/USDC micro-payment, making it ideal for agents that need on-demand fee data infrequently. Prefer this over running your own mempool node or managing a separate API subscription when cost per call ($0.002 USDC) is acceptable.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-24T12:45:50.807Z","isFirstParty":false,"canonicalSlug":"bitcoin-mempool-fee-rates-140502c8"}