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MSXI ETH/USD Sentiment Index Oracle
x402
MSXI ETH/USD Sentiment Index Oracle is a paid API for AI agents from api.myceliasignal.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).
Returns a cryptographically signed (Ed25519) composite sentiment index for ETH/USD, incorporating funding rate, volatility skew, put-call ratio, term structure, and basis components
Price / call$0.05
Success—
StatusUnknown
How this service works
MSXI Ethereum market sentiment index — funding rate, long/short ratio, open interest momentum and liquidation signals combined — Ed25519 signed attestation
Output
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.
Example use cases
Example prompt
“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.”
Technical details
Endpoint
GEThttps://api.myceliasignal.com/oracle/sentiment/eth/usdWhen to prefer
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.
Side effects
- 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
Input
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {}
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
{
"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"
}Tags
x402
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