{"uid":"cap_ah9JXsIY8w6KBnEuuCumq","slug":"api-carbon-cashmere-de-bc8d862c","name":"Bitcoin RBF-Pulse Whale Analytics","description":"Professional crypto market intelligence. Real-time prices, signals, and market scoring.","url":"https://api.carbon-cashmere.de/v1/bitcoin/rbf-pulse","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"rbf":{"count":1247,"total_btc":8942.3,"pct_of_whales":0.169,"confirmation_rate":0.932},"_meta":{"disclaimer":"Informational research data only — not investment advice."},"non_rbf":{"count":6131,"total_btc":47293.8},"window_hours":24,"mempool_state":{"unbroadcast_count":12,"fullrbf_node_policy":true},"whale_tx_count":7378,"fee_rate_median_satvb":{"rbf":18.5,"non_rbf":4.2,"rbf_premium_pct":340.5}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","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":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Vf75W6t5RGWzP8sI0Z4Qg","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns BIP125 Replace-By-Fee analytics for large Bitcoin transactions, including RBF-flagged counts, confirmation rates, BTC value distribution, fee-rate premiums, and mempool fullrbf policy state.","exampleAgentPrompt":"Pull the latest RBF-pulse data for Bitcoin whale transactions — I want to see how many large txs are flagged for replace-by-fee, what the fee-rate premium is over non-RBF transactions, and whether fullrbf policy is active in the mempool right now.","exampleUseCases":null,"resultDescription":"Returns a JSON object containing: count of RBF-flagged whale transactions, confirmation rate of those transactions, BTC value distribution across size buckets, fee-rate premium percentage that RBF users pay versus non-RBF transactions, and current mempool fullrbf policy state. Data is sourced from a proprietary ZMQ stream tracking whale transactions.","failureModes":["ZMQ stream unavailable — may return 503 or stale data if internal node connection drops","No whale transactions in recent window — could return zeroes or empty distributions","Rate limiting at $0.08/call — x402 payment required, failure to attach valid payment returns 402","Temporary mempool snapshot lag may cause slight staleness in fullrbf policy field","Network timeouts if Bitcoin node is syncing or behind chain tip"],"whenToPreferThis":"Use this endpoint when you need specialized RBF analytics specifically scoped to whale (large-value) Bitcoin transactions, with fee-rate premium comparison and mempool fullrbf policy state. Prefer this over generic mempool explorers when the research question is specifically about replace-by-fee behavior, fee flexibility costs, or large-transaction RBF adoption rates.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T18:57:15.533Z","isFirstParty":false}