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Carbon & Cashmere Hurst Exponent API – SOL
x402
Carbon & Cashmere Hurst Exponent 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 2026-09-15).
Returns Hurst exponent values and trend/random-walk interpretations for Solana (SOL) across multiple time windows (7d, 30d, full history).
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 containing Hurst exponent values for SOL at three time horizons (7d, 30d, full history) along with plain-language interpretations ('trending', 'random_walk', 'mean_reverting') for each window, plus a disclaimer that this is informational research data and not investment advice.
Example use cases
SOL regime filter for strategy
“Before I deploy my mean-reversion bot on Solana, can you check whether SOL is actually in a mean-reverting or trending regime right now using the Hurst exponent across the 7-day and 30-day windows?”
Comparing SOL trend persistence
“I want to understand if Solana's price has any long-term memory or if it's basically a coin flip — what does the Hurst analysis say across the short, medium, and full history timeframes?”
SOL market structure research report
“Pull the Hurst exponent readings for SOL across all available time windows and give me a plain-English summary of what the current market structure looks like — trending, random walk, or mean-reverting?”
Technical details
Endpoint
GEThttps://api.carbon-cashmere.de/v1/hurst/SOLWhen to prefer
Use this endpoint when you need to characterize the statistical regime of SOL's price series — specifically whether it is trending (Hurst > 0.5), mean-reverting (Hurst < 0.5), or behaving as a random walk (Hurst ≈ 0.5). Prefer this over simple momentum or moving-average endpoints when you need a rigorous fractal / long-memory measure of market structure. Useful for strategy selection (trend-following vs. mean-reversion) or regime filtering.
Side effects
- Invalid or unsupported symbol in URL path — 404 or empty response
- Insufficient price history for the requested coin — may return null or partial fields
- Network timeout or upstream data feed outage — 5xx error
- Malformed request path — 400 bad request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"_meta": {
"disclaimer": "Informational research data only — not investment advice."
},
"symbol": "BTC",
"hurst_7d": 0.48,
"hurst_30d": 0.55,
"hurst_full": 0.52,
"interpretation_7d": "random_walk",
"interpretation_30d": "trending",
"interpretation_full": "random_walk"
}
}Tags
x402
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