{"uid":"cap_cDJIpjb0W8u6X-_FrpflO","slug":"obol-btc-block-anomaly-detector-latest-tip-3a990a0f","name":"Obol BTC Block Anomaly Detector – Latest Tip","description":"Validation-gated Bitcoin block anomaly detector on the current tip height. fee-exceeds-subsidy, empty block, difficulty retarget, timestamp inversion, long block gap, coinbase message — latest block scan for agents. Cryptographically signed (Ed25519) — every response is independently verifiable via /.well-known/obol-pubkey.","url":"https://obol-x402.fly.dev/v1/btc/anomaly/latest","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","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_3cVqhC35_ZPhxUUmYP3v8","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Scans the current Bitcoin blockchain tip block for anomalies including fee-exceeds-subsidy, empty blocks, difficulty retargets, timestamp inversions, long block gaps, and unusual coinbase messages.","exampleAgentPrompt":"Check the latest Bitcoin block for any anomalies — things like empty blocks, fees exceeding the subsidy, difficulty retargets, timestamp inversions, long gaps between blocks, or anything weird in the coinbase message.","exampleUseCases":null,"resultDescription":"Returns a structured anomaly report for the current Bitcoin chain tip block, including boolean flags for each anomaly type (fee-exceeds-subsidy, empty block, difficulty retarget, timestamp inversion, long block gap) and the raw coinbase message, along with the scanned block height.","failureModes":["Bitcoin node data temporarily unavailable — service may return 503 or timeout","Payment validation failure — x402 payment not accepted, returns 402","Block tip data stale if upstream indexer lags — anomaly flags may reflect a slightly older tip","Rate limiting if called too frequently without valid payment"],"whenToPreferThis":"Use this endpoint when an AI agent needs to autonomously monitor or report on the health and unusual properties of the current Bitcoin blockchain tip without specifying a particular block — ideal for real-time alerting workflows, chain health dashboards, or pre-transaction sanity checks. Prefer over general blockchain explorers when you need a structured, agent-friendly anomaly summary rather than raw block data.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T16:26:46.320Z","isFirstParty":false}