{"uid":"cap_ludgMo2GEyBh6lBoXT6P6","slug":"scriptmasterlabs-btc-mempool-fee-tracker-e583631c","name":"ScriptMasterLabs BTC Mempool Fee Tracker","description":"Pay-per-call crypto, RWA, federal, SEC, and compliance APIs. Settled in USDC on Base via x402. Hyphen routes only (e.g. /x402/rwa-aggregates, /x402/gas-tracker).","url":"https://acp-x402-scriptmasterlabs.onrender.com/x402/btc-mempool-fees?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"example":{}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Zg4r8f4ORzhWF-CBtdpBi","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns current Bitcoin mempool fee estimates (e.g. slow, medium, fast sat/vByte rates) via a pay-per-call x402 USDC-settled API.","exampleAgentPrompt":"What are the current Bitcoin mempool fee rates — slow, medium, and fast — right now so I know what sat/vByte to use for my transaction?","exampleUseCases":[{"title":"Optimize BTC transaction fee before sending","prompt":"Before I send this Bitcoin transaction, what are the current mempool fee rates for slow, medium, and fast confirmation so I can pick the right one?"},{"title":"Monitor mempool congestion for DeFi bot","prompt":"Check the current BTC mempool fees right now — I need the fast-confirmation sat/vByte rate to decide whether to execute my on-chain arbitrage trade."},{"title":"Alert when Bitcoin fees drop below threshold","prompt":"What are the Bitcoin mempool fees at this moment? I'm waiting for the fast fee to drop below 20 sat/vByte before I broadcast my transaction."}],"resultDescription":"Returns current Bitcoin mempool fee estimates broken down by priority tier (e.g. slow, medium, fast) expressed in satoshis per virtual byte (sat/vByte), reflecting real-time network conditions. Delivered as a JSON response after micropayment settlement in USDC on Base via x402.","failureModes":["Payment not settled — 402 response if USDC payment via x402 is not included or insufficient","Mempool data unavailable — upstream Bitcoin node or data provider outage returns an error or empty response","Rate limiting — excessive calls may be throttled","Malformed response — example schema is empty so exact field names are undocumented and may vary","Cold start latency — hosted on Render free tier, may have slow initial response after inactivity"],"whenToPreferThis":"Choose this endpoint when you need real-time Bitcoin mempool fee estimates and are operating in a crypto-native, x402-compatible payment environment settling in USDC on Base. It is well-suited for AI agents that already handle x402 micropayments and need lightweight, pay-per-call access without a subscription. Prefer alternatives with richer documentation if exact schema fidelity is critical.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T00:41:26.721Z","isFirstParty":false,"canonicalSlug":"scriptmasterlabs-btc-mempool-fee-tracker-e583631c"}