{"uid":"cap_TNVzr8OPnMMhkDo0-7qgL","slug":"api-myceliasignal-com-c6bd910d","name":"Mycelia Signal ETH/USD Spot Price Oracle","description":"Real-time Ethereum price in USD, aggregated from 9 exchanges including Binance, Coinbase and Kraken — Ed25519 signed attestation","url":"https://api.myceliasignal.com/oracle/price/eth/usd","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","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":{"request":{"input":{"type":"http","method":"GET","queryParams":{}}},"response":{"domain":"ETHUSD","pubkey":"f4f0e52b5f7b54831f965632bf1ebf72769beda4c4e3d36a593f7729ec812615","canonical":"v1|PRICE|ETHUSD|2011.39|USD|2|bitfinex,bitstamp,bullish,coinbase,gemini,kraken|median|1780095944|352439","signature":"3898c57c949d263bb798b60ace46fa46c24d4977c8ba885cc10638ee1a97e7469f30d334d19256f883e1b90043c21c34761955808186c7871d56d6bb6fad630d","signingScheme":"ed25519"}},"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.01/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_CbC4xlGiSc7wHxGwwCQ1r","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 a cryptographically signed (Ed25519) attestation of the current ETH/USD spot price","exampleAgentPrompt":"What's the current ETH/USD spot price? I need a cryptographically signed attestation I can verify independently.","exampleUseCases":[{"title":"Smart contract price feed validation","prompt":"Pull the current ETH price in USD with a cryptographic signature so I can verify it on-chain before executing this trade logic."},{"title":"Audit trail for DeFi transactions","prompt":"Get me the signed ETH/USD spot price right now — I need to record a tamper-proof price attestation in our transaction audit log."},{"title":"Cross-exchange price verification","prompt":"Fetch the current Ethereum price in dollars with an Ed25519 signature I can independently verify to confirm it against our other price sources."}],"resultDescription":"A JSON response containing the current ETH/USD spot price along with an Ed25519 digital signature that allows the caller to cryptographically verify the authenticity and integrity of the price data, plus a timestamp indicating when the price was recorded.","failureModes":["Payment not included or invalid: 402 Payment Required — must supply $0.01 USDC via x402 protocol","Network or upstream price feed unavailable: 503 Service Unavailable","Rate limiting exceeded: 429 Too Many Requests","Invalid endpoint path: 404 Not Found"],"whenToPreferThis":"Choose this endpoint when you need a tamper-proof, cryptographically attested ETH/USD price — ideal for DeFi applications, smart contract inputs, audit trails, or any scenario where price data integrity must be independently verifiable via Ed25519 signature rather than trusted implicitly.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T12:56:36.502Z","isFirstParty":false}