{"uid":"cap_KtmG1VJklQuypgHlEPFCM","slug":"api-carbon-cashmere-de-a2a31362","name":"Bitcoin Whale Transaction Tracker","description":"Professional crypto market intelligence. Real-time prices, signals, and market scoring.","url":"https://api.carbon-cashmere.de/v1/bitcoin/whales","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"_meta":{"source":"btc_core_node_zmq_whale_stream","disclaimer":"Informational research data only — not investment advice."},"query":{"hours":24,"limit":50,"min_btc":100},"whales":[{"txid":"abc123...def89012","confirmed":true,"total_btc":1250.5,"total_usd":98523100,"bip125_rbf":false,"fee_rate_satvb":28.5}],"summary":{"count":42,"total_btc":18754.2,"total_usd":1478234567.8,"confirmed_pct":0.833,"rbf_flagged_count":7,"avg_whales_per_hour":1.75}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.05","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":"$0.05/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_nX8uPAyuABY62WiN7iQBP","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.05","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Tracks large Bitcoin transactions (whales) from a live full-node ZMQ stream, returning BTC/USD values, fee rates, size, ancestry, RBF flags, and confirmation status with sub-second freshness","exampleAgentPrompt":"Show me all Bitcoin whale transactions above 50 BTC from the last 24 hours — I want to see their USD value, fee rate, size, whether they're RBF-flagged, and a summary of what's going on.","exampleUseCases":null,"resultDescription":"A list of large Bitcoin transactions matching the threshold filter, each with txid, BTC and USD value, fee rate (sat/vB), transaction size in bytes, ancestor and descendant counts, BIP125 RBF flag, and confirmation status — plus an aggregate summary (count, total BTC, total USD) across all matched transactions. Data is sourced from a live Bitcoin Core full node via ZMQ with sub-second freshness.","failureModes":["Threshold too high returns empty transaction list","Lookback window exceeding 168h returns error or is clamped","Node sync lag during network stress may delay freshest mempool entries","Invalid parameter types (non-numeric threshold) return 400 bad request","Payment not included or insufficient USDC returns 402 payment required"],"whenToPreferThis":"Choose this endpoint when you need near-real-time Bitcoin whale transaction data with rich per-transaction metadata (fee rates, RBF, ancestors/descendants) sourced directly from a full node rather than a third-party aggregator. Ideal for on-chain research, mempool monitoring, or detecting large BTC movements with configurable size thresholds and lookback windows up to 168 hours.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T18:54:01.068Z","isFirstParty":false}