{"uid":"cap_gB1mBKOu2OFA8efj_XJXB","slug":"bitcoin-mining-pool-concentration-51-risk-check-b1db0fae","name":"Bitcoin Mining Pool Concentration & 51% Risk Check","description":"Mining pool share of recent Bitcoin blocks with concentration (top-3 share, HHI) and the 51 percent check.","url":"https://bitcoin-network.x402tookit.com/btc-mining-pools?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":[],"properties":{"window":{"type":"string","description":"24h, 3d, 1w (default), 1m or 3m"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"hhi":{"type":["null","number"]},"asOf":{"type":["null","string"]},"pools":{"type":["array","null"],"items":{"type":"object","properties":{"pool":{"type":["null","string"]},"blocks":{"type":["null","number"]},"sharePct":{"type":["null","number"]},"emptyBlocks":{"type":["null","number"]}}}},"blocks":{"type":["null","number"]},"source":{"type":["null","string"]},"window":{"type":["null","string"]},"reasons":{"type":["array","null"],"items":{"type":"string"}},"summary":{"type":["null","string"]},"verdict":{"type":["null","string"]},"degraded":{"type":["boolean","null"]},"sourceUrl":{"type":["null","string"]},"disclaimer":{"type":["null","string"]},"notChecked":{"type":["array","null"],"items":{"type":"string"}},"top1SharePct":{"type":["null","number"]},"top3SharePct":{"type":["null","number"]}}}}}}},"responseSchema":null,"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":"unknown","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_pmMl-f_sHnKZGysbZSXDs","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the share of recent Bitcoin blocks by mining pool, including top-3 concentration, Herfindahl-Hirschman Index (HHI), and a 51% attack risk verdict.","exampleAgentPrompt":"What's the current Bitcoin mining pool concentration? Show me which pools dominate, the HHI score, and whether there's any 51% attack risk — use the last 7 days as the window.","exampleUseCases":[{"title":"Daily Bitcoin network security check","prompt":"Give me today's Bitcoin mining pool breakdown — which pools mined the most blocks in the past 24 hours, what's the top-3 concentration, and is there any 51% attack concern?"},{"title":"Monthly mining decentralization report","prompt":"Pull the Bitcoin mining pool share for the last month and tell me the HHI score and top-3 share — I want to know how centralized mining has been over that period."},{"title":"Real-time 51% attack risk alert","prompt":"Is Bitcoin currently at risk of a 51% attack? Check the mining pool distribution for the past 3 days and give me the verdict with reasons."}],"resultDescription":"Returns a JSON object containing: list of mining pools with block count and share percentage, top-1 and top-3 share percentages, HHI concentration index, a 51%-attack verdict string, human-readable summary, array of reasons supporting the verdict, total blocks in window, time window label, data source and URL, a degraded flag if data quality is reduced, and a disclaimer.","failureModes":["Invalid window parameter returns error or default behavior","Data source unavailable causes degraded flag to be true with partial results","Network timeout from upstream blockchain data provider","Empty pool list if no block data is available for the requested window"],"whenToPreferThis":"Use this endpoint when you need a structured, pre-computed mining pool concentration analysis with a built-in 51% risk verdict and HHI score, rather than raw blockchain data you'd have to aggregate yourself. Ideal for monitoring Bitcoin network health, security dashboards, or any agent that needs a quick go/no-go safety signal on mining centralization.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-29T13:13:42.164Z","isFirstParty":false,"canonicalSlug":"bitcoin-mining-pool-concentration-51-risk-check-b1db0fae"}