{"uid":"cap_Hki2P26tdASh9uRFe6ZUx","slug":"api-carbon-cashmere-de-1ec6c98b","name":"BTC Mempool Fee Distribution","description":"Professional crypto market intelligence. Real-time prices, signals, and market scoring.","url":"https://api.carbon-cashmere.de/v1/mempool/distribution","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"distribution":[{"bucket_0_1":500,"bucket_1_2":300,"bucket_2_5":200,"total_tx_count":45000}]}},"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":"down","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_pQqKGi0QJDDW1oa8yBJqc","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.03","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the Bitcoin mempool fee distribution — transaction counts per fee-rate bucket (sat/vB) — revealing fee pressure and congestion across priority tiers.","exampleAgentPrompt":"Show me the current Bitcoin mempool fee distribution broken down by sat/vB bucket so I can figure out the right fee rate for my transaction right now.","exampleUseCases":null,"resultDescription":"An array of fee-rate buckets (e.g., 0-1, 1-2, 2-5, ..., 200+ sat/vB) each annotated with the number of unconfirmed transactions waiting at that fee rate, giving a full picture of mempool depth and fee pressure across priority levels.","failureModes":["Mempool data temporarily unavailable — upstream Bitcoin node sync issue (503)","Rate limit exceeded for the endpoint (429)","Payment not processed — x402 payment required (402)","Malformed request parameters result in 400 error","Empty distribution array returned during very low mempool activity"],"whenToPreferThis":"Use this endpoint when you need a granular, bucket-level view of the Bitcoin mempool fee landscape — ideal for fee estimation logic, optimal transaction timing, or detecting mempool congestion spikes. Prefer over simple median-fee endpoints when you need the full distribution shape.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:57:45.835Z","isFirstParty":false}