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Carbon & Cashmere Beta-to-BTC Signal API – SOL
x402
Carbon & Cashmere Beta-to-BTC Signal API – SOL is a paid API for AI agents from api.carbon-cashmere.de, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Returns the 90-day rolling beta of SOL relative to BTC, including market regime classification, alpha, R-squared, and stability metrics.
Price / call$0.01
Success—
StatusUnknown
How this service works
Professional crypto market intelligence. Real-time prices, signals, and market scoring.
Output
A JSON object with SOL's 90-day beta vs BTC, the current market regime label (e.g. 'amplifier'), daily alpha percentage, R-squared fit quality, a rolling 30-day window with mean/std/current beta, stability classification ('stable' or otherwise), and a disclaimer noting the data is for informational research only.
Example use cases
Example prompt
“What's SOL's current beta against Bitcoin — is it an amplifier or dampener right now, and how stable has it been over the past 30 days?”
Technical details
Endpoint
GEThttps://api.carbon-cashmere.de/v1/beta-to-btc/SOLWhen to prefer
Use this endpoint when you need a quantitative, regression-based measure of how SOL moves relative to BTC — specifically when you want the market regime label (amplifier/dampener), R-squared confidence, and rolling stability stats in a single call rather than computing beta manually from raw price feeds.
Side effects
- Unsupported coin symbol returns an error or empty result
- Network latency or API downtime returns a 5xx error
- Stale or missing market data may affect beta accuracy
- Invalid endpoint path format returns 404
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"beta": 1.12,
"coin": "ETH",
"_meta": {
"disclaimer": "Informational research data only — not investment advice."
},
"regime": "amplifier",
"r_squared": 0.78,
"stability": "stable",
"rolling_30d": {
"std": 0.08,
"mean": 1.11,
"current_beta": 1.15
},
"lookback_days": 90,
"alpha_daily_pct": -0.02
}
}Tags
x402
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