{"uid":"cap_bG4I0LlnCORwPI1JxKUv-","slug":"bitcoin-benji-whale-watcher-api-d19c104d","name":"Bitcoin Benji Whale Watcher API","description":"L402-gated APIs: real-time Bitcoin mempool intelligence and private AI inference. Pay-per-call via Lightning. Zero API keys. Zero subscriptions.","url":"https://api.bitcoinbenji.com/whales","method":"GET","headers":{},"bodySchema":null,"responseSchema":{"type":"json"},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.04","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":"$0.04/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.04","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.04","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_BVFLqQxgxl_uV_arl-nSY","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.04","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns real-time data on large Bitcoin whale transactions and addresses detected in the mempool or on-chain","exampleAgentPrompt":"Can you pull the latest Bitcoin whale activity right now — I want to see which large holders are moving BTC and how much?","exampleUseCases":[{"title":"Real-time whale movement alert","prompt":"Check Bitcoin Benji's whale endpoint and let me know if any wallets have moved more than 1000 BTC in the last hour."},{"title":"Pre-trade market intelligence","prompt":"Before I make a big BTC trade, can you check if any whales are currently moving large amounts of Bitcoin that might signal a price shift?"},{"title":"Mempool whale monitoring dashboard","prompt":"Fetch the latest whale transaction data from Bitcoin Benji so I can see who the biggest movers are on the Bitcoin network right now."}],"resultDescription":"A JSON response containing real-time data on large Bitcoin whale transactions, including wallet addresses, transaction sizes, timestamps, and mempool or on-chain status of significant BTC movements.","failureModes":["402 Payment Required — Lightning payment not provided or L402 token missing/invalid","Rate limiting if payment is not processed correctly","Empty or sparse results during low-activity mempool periods","Network timeout if mempool is congested","Stale data if upstream Bitcoin node sync is delayed"],"whenToPreferThis":"Choose this endpoint when you need real-time, pay-per-call Bitcoin whale tracking without managing API keys or subscriptions. It is ideal for agents that need occasional on-demand mempool intelligence rather than continuous streaming, and for use cases where Lightning-native micropayments are acceptable. Prefer alternatives if you need historical whale data archives or streaming WebSocket feeds.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T12:42:11.213Z","isFirstParty":false}