{"uid":"cap_iZp0XvOEYNbeg_tiDZt1C","slug":"api-myceliasignal-com-ba86bae8","name":"Mycelia Signal MSXI BTC/USD Sentiment Index","description":"MSXI Bitcoin 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/btc/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":"BTCUSD","unit":"index","value":0.21,"pubkey":"7ab07fbe7d08cd16823e5eb0db0e21f3f38e9366d5fd00d14e95df0fb9b51a1a","regime":"NEUTRAL","degraded":false,"canonical":"v1|SENTIMENT|BTCUSD|MSXI|0.21|INDEX|FR:0.00:0.3,SKEW:-3.24:0.25,PCR:0.914:0.2,TS:0.922:0.15,BASIS:0.1294:0.1|REGIME:NEUTRAL|CONFIDENCE:1.0000|METHOD:v1|1779683562|310834","signature":"8ITn89NRWOHclyJvt7GGh/ndosjuGhQlMyPTUbOZstAjLwsuG1lXxzbSIFeelZuWwi3fzqEnPOdwb4ApYQ39BQ==","components":{"fr":{"value":0.00001028,"weight":0.3,"confidence":1},"ts":{"value":0.9218,"weight":0.15,"confidence":1},"pcr":{"value":0.9145,"weight":0.2,"confidence":1},"skew":{"value":-3.2369,"weight":0.25,"confidence":1},"basis":{"value":0.129416,"weight":0.1,"confidence":1}},"computedAt":1779683560,"confidence":1,"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_-54GsMsFeBqyNq2ihFoIg","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 the MSXI composite BTC/USD market sentiment index score (neutral/bullish/bearish regime) with Ed25519-signed attestation and component breakdown","exampleAgentPrompt":"What's the current MSXI Bitcoin sentiment regime — is BTC neutral, bullish, or bearish right now? I want the signed index value with confidence score and a breakdown of the funding rate, skew, PCR, term structure, and basis components.","exampleUseCases":[{"title":"Smart contract collateral decisions","prompt":"I need a cryptographically signed Bitcoin sentiment reading right now. Fetch the MSXI index with the full Ed25519 attestation so I can verify it on-chain and use it to automatically adjust my lending pool's BTC collateral requirements based on whether we're in a bullish or bearish regime."},{"title":"Trading bot regime confirmation","prompt":"Before my bot opens a new BTC position, check if Bitcoin sentiment is actually bullish using the Mycelia MSXI composite. I want the regime label, the confidence score, and breakdowns of funding rate and put/call ratio so I know if this is a strong signal or just neutral noise."},{"title":"Risk dashboard for fund managers","prompt":"Pull the current MSXI Bitcoin sentiment index with all component values — funding rate, basis, term structure, skew, and PCR. I need this signed and timestamped for our compliance report so we can show LPs exactly what on-chain sentiment data was driving our BTC exposure decisions today."}],"resultDescription":"Returns a JSON object containing: sentiment index value (0-1 float), regime label (e.g. NEUTRAL/BULLISH/BEARISH), Ed25519 signature over a canonical string, signing public key, confidence score, degraded flag, individual component weights and values (funding rate, skew, put/call ratio, term structure, basis), computation timestamp, and method version. The canonical string and signature allow downstream consumers to cryptographically verify the attestation.","failureModes":["Payment failure (402): x402 micropayment not accepted or insufficient USDC — no data returned","Degraded signal (degraded:true in response): one or more underlying data sources unavailable, index computed with reduced confidence","Service unavailable (503/timeout): oracle backend unreachable","Invalid signature verification: consumer-side key mismatch or payload tampering detected after receipt"],"whenToPreferThis":"Choose this endpoint when you need a cryptographically signed, multi-factor BTC/USD sentiment composite (not just price) that is verifiable on-chain or in smart contracts. Prefer this over raw price feeds when the use case requires regime classification (bullish/bearish/neutral), derivatives-derived sentiment signals (funding rate, skew, PCR, term structure, basis), or tamper-proof attestations for trustless downstream consumption. Not suitable if you only need spot price — use the price oracle endpoints for that.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T12:57:55.586Z","isFirstParty":false}