{"uid":"cap_HIuD9iZyVogULul5csPkI","slug":"obol-btc-usd-spot-price-with-cross-exchange-divergence-check-fcba2828","name":"Obol BTC/USD Spot Price with Cross-Exchange Divergence Check","description":"Bitcoin BTC USD spot price Coinbase Kraken cross-check with divergence flag. Single-asset BTC/USD for AI agents. Cryptographically signed (Ed25519) — every response is independently verifiable via /.well-known/obol-pubkey.","url":"https://obol-x402.fly.dev/v1/price/BTC","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__OGpTTL32IzW9kcHCifJ0","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":"Returns the current Bitcoin BTC/USD spot price sourced from Coinbase and Kraken, with a divergence flag if the two exchanges disagree significantly.","exampleAgentPrompt":"What's the current Bitcoin price in USD? Check both Coinbase and Kraken and let me know if there's any divergence between them.","exampleUseCases":[{"title":"Trading bot real-time price validation","prompt":"I need to execute a Bitcoin trade in the next minute. Pull the current BTC/USD spot price from both Coinbase and Kraken and tell me if they're in sync or if there's a divergence I should know about before I act."},{"title":"Arbitrage opportunity detection system","prompt":"Monitor the Bitcoin price across Coinbase and Kraken for me right now. If there's any significant price difference flagged, alert me immediately so I can evaluate if there's an arbitrage play worth executing."},{"title":"Crypto portfolio rebalancing check","prompt":"I'm about to rebalance my portfolio and need to know what Bitcoin is actually trading at. Get me the current BTC/USD price and verify it's consistent between Coinbase and Kraken—I don't want stale or divergent data skewing my decision."}],"resultDescription":"Returns a JSON object with the BTC/USD spot price (likely a consensus or averaged value), individual prices from Coinbase and Kraken, and a boolean divergence flag indicating whether the two exchanges show a meaningful price difference. May include a timestamp.","failureModes":["One or both exchange APIs (Coinbase or Kraken) are unavailable, resulting in partial data or an error response","Network timeout reaching obol-x402.fly.dev","Payment not processed (x402 payment required, returns 402 if unpaid)","Price data is stale if upstream exchange feeds lag","Unexpected schema change from upstream exchanges causing parse failure"],"whenToPreferThis":"Use this endpoint when you need a real-time BTC/USD spot price with built-in cross-exchange validation — ideal when accuracy and manipulation resistance matter, since it checks both Coinbase and Kraken and flags divergence. Prefer over single-source price feeds when you want confidence that the price is consistent across major venues.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T16:28:43.342Z","isFirstParty":false}