{"uid":"cap_OWxkzREIImHvxO1fKDjQk","slug":"bitcoin-fee-rate-estimates-api-0f3ef96b","name":"Bitcoin Fee Rate Estimates API","description":"Bitcoin fee rate estimates","url":"https://api.relai.fi/relay/1780781322365/api/fees","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","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":{"request":{"input":{"type":"http","method":"GET","queryParams":{}}},"response":{"low":2,"high":6,"unit":"sat/vB","medium":4,"success":true,"updated_at":"2026-06-12T04:31:04.974Z"}},"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_D49P26xViEtRjf6YxyQE0","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns current Bitcoin network fee rate estimates for transaction fee planning","exampleAgentPrompt":"What are the current Bitcoin fee rates — like how many sats per byte should I use if I want a fast confirmation versus a slow one?","exampleUseCases":null,"resultDescription":"Returns current Bitcoin fee rate estimates, typically including tiers such as fastest, half-hour, and one-hour confirmation targets expressed in satoshis per byte or satoshis per virtual byte (sat/vbyte).","failureModes":["Bitcoin node unavailable or syncing — returns 5xx error","Relay infrastructure timeout — returns gateway error","Rate limiting or payment issue — returns 402 or 429","Empty or stale fee data if mempool is not fully synced"],"whenToPreferThis":"Use this endpoint when you need real-time Bitcoin fee rate estimates to set appropriate miner fees for transactions, particularly when you need tiered fee recommendations (fast, medium, slow) without running your own Bitcoin node. Ideal for wallets, payment processors, or automation scripts that need current mempool-based fee guidance.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T06:52:14.273Z","isFirstParty":false}