{"uid":"cap_uMsw4vzLV2ylawuv3JEG5","slug":"obol-eth-usd-spot-price-with-cross-exchange-divergence-check-aa5882c1","name":"Obol ETH/USD Spot Price with Cross-Exchange Divergence Check","description":"Ethereum ETH USD spot price Coinbase Kraken cross-check with divergence flag. Single-asset ETH/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/ETH","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_RaGVxFwHpIgBlhUUjQehQ","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 ETH/USD spot price by cross-checking Coinbase and Kraken, with a divergence flag if the two exchanges disagree significantly.","exampleAgentPrompt":"What's the current ETH price in USD? Cross-check Coinbase and Kraken and let me know if there's any divergence between them.","exampleUseCases":null,"resultDescription":"Returns the current ETH/USD spot price aggregated from Coinbase and Kraken, along with a divergence flag indicating whether the two exchange prices differ significantly — useful for detecting market fragmentation or data reliability issues.","failureModes":["Exchange API unavailable — one or both upstream price feeds (Coinbase/Kraken) may be unreachable, returning partial or error response","Large divergence detected — prices differ significantly between exchanges, divergence flag is raised but response still returns","Stale price data — if upstream feeds are slow, returned price may lag real-time market","Payment failure — x402 micropayment of $0.002 USDC not processed, endpoint returns 402 Payment Required"],"whenToPreferThis":"Use this endpoint when you need a trustworthy, cross-validated ETH/USD spot price and want to detect exchange-level price discrepancies. Ideal for AI agents making Ethereum-denominated decisions, DeFi workflows, or any scenario where a single-source price feed is insufficient. Prefer over single-exchange feeds when data reliability and divergence detection matter.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T20:25:43.142Z","isFirstParty":false}