{"uid":"cap_Jf60vWGD6HwpXWebieQsJ","slug":"api-myceliasignal-com-f8fb69c6","name":"Mycelial Signal ETH/USD Options Greeks Oracle","description":"ETH options Greeks — cross-exchange consensus from 1822+ options across 3 exchanges — Ed25519 signed attestation","url":"https://api.myceliasignal.com/oracle/greeks/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":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.05","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":"$0.05/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm__63DXTEEi1sj6132FEBFO","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.05","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns consensus ETH/USD options Greeks aggregated across 1822+ options on 3 exchanges, with Ed25519-signed attestation","exampleAgentPrompt":"Can you pull the current ETH/USD options Greeks consensus — delta, gamma, theta, vega — aggregated across all three exchanges with a cryptographic attestation I can verify?","exampleUseCases":null,"resultDescription":"A signed payload containing consensus options Greeks (delta, gamma, theta, vega, rho) for ETH/USD, aggregated from 1822+ options contracts across 3 exchanges, with an Ed25519 digital signature for cryptographic attestation and provenance verification.","failureModes":["Exchange data unavailable — one or more underlying exchanges unreachable, partial consensus returned or error","Payment not received — 402 response if x402 micropayment not included","Rate limiting — too many requests in short period","Stale data — Greeks may lag if exchange feeds are delayed","Signature verification failure — Ed25519 attestation invalid if data tampered"],"whenToPreferThis":"Use this endpoint when you need trustworthy, multi-exchange consensus ETH options Greeks with cryptographic attestation — ideal for on-chain protocols, smart contract oracles, or any system that needs verifiable risk metrics rather than a single-source feed. Prefer over single-exchange APIs when cross-exchange divergence detection and tamper-evident data provenance matter.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T17:53:08.774Z","isFirstParty":false}