{"uid":"cap_2vWzigF6-EYLa_wJURU0w","slug":"api-myceliasignal-com-df11c8ac","name":"MSXI ETH/USD Sentiment Index Oracle","description":"MSXI Ethereum market sentiment index — funding rate, long/short ratio, open interest momentum and liquidation signals combined — Ed25519 signed attestation","url":"https://api.myceliasignal.com/oracle/sentiment/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":{"pair":"ETHUSD","unit":"index","value":-32.32,"pubkey":"7ab07fbe7d08cd16823e5eb0db0e21f3f38e9366d5fd00d14e95df0fb9b51a1a","regime":"BEARISH","degraded":false,"canonical":"v1|SENTIMENT|ETHUSD|MSXI|-32.32|INDEX|FR:0.00:0.3,SKEW:-7.93:0.25,PCR:0.850:0.2,TS:NA:0.15,BASIS:0.1938:0.1|REGIME:BEARISH|CONFIDENCE:0.8500|METHOD:v1|1780461185|699421","signature":"DxOWN0lV5YLhSdjKbBXj285Ap7X5cVShOug/Z/GJ8QzMpzF0S2Ie0gq441JkyNtm7fT2ItZXTXjA0Xj+UGiNDA==","components":{"fr":{"value":7.4e-7,"weight":0.3,"confidence":1},"ts":{"value":null,"weight":0.15,"confidence":0},"pcr":{"value":0.85,"weight":0.2,"confidence":1},"skew":{"value":-7.9313,"weight":0.25,"confidence":1},"basis":{"value":0.193849,"weight":0.1,"confidence":1}},"computedAt":1780461184,"confidence":0.85,"methodVersion":1,"signingScheme":"ed25519"}},"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_Ye2HR0DbZIwT4o8CDSnuy","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 a cryptographically signed (Ed25519) composite sentiment index for ETH/USD, incorporating funding rate, volatility skew, put-call ratio, term structure, and basis components","exampleAgentPrompt":"What's the current MSXI sentiment index for ETH/USD — I need the signed attestation with the regime classification and confidence score so I can verify it on-chain.","exampleUseCases":null,"resultDescription":"Returns a JSON object with: the MSXI composite sentiment index value (e.g. -8.94), a market regime label (NEUTRAL/BULLISH/BEARISH), individual component scores (funding rate, vol skew, put-call ratio, term structure, basis) with weights and confidences, a canonical attestation string, an Ed25519 signature and public key for cryptographic verification, a confidence score, compute timestamp, method version, and a degraded-mode flag.","failureModes":["Service degraded (degraded:true in response) when one or more underlying data sources are unavailable","Payment required (HTTP 402) if x402 payment header is missing or USDC payment fails","Rate limiting if too many requests are sent without valid payment","Invalid or expired signature if response is replayed after TTL","Network timeout if upstream derivatives data feeds are slow"],"whenToPreferThis":"Choose this endpoint when you need a cryptographically verifiable, multi-factor ETH/USD sentiment signal rather than raw price data. It is ideal for on-chain use cases requiring Ed25519 attestations, DeFi protocols needing a signed regime indicator, or trading agents that want a composite derivatives-based sentiment score (skew + PCR + basis + funding + term structure) rather than a single price feed. Prefer over generic sentiment APIs when tamper-proof provenance is required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:50:25.505Z","isFirstParty":false}