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Carbon & Cashmere Signal API – SOL Feature Vector
x402
Carbon & Cashmere Signal API – SOL Feature Vector is a paid API for AI agents from api.carbon-cashmere.de, paid per call via x402, $0.02/call, status down (last checked 2026-09-13).
Returns a 34-feature crypto market intelligence vector for Solana (SOL), including fear/greed index, volatility, price returns, and ML-ready signals.
Price / call$0.02
Success—
StatusDown
How this service works
Professional crypto market intelligence. Real-time prices, signals, and market scoring.
Output
A JSON object with the coin ticker (SOL), a named features object containing fear_greed index (0-100), 7-day volatility (decimal), 24h price return (decimal), and up to 34 total ML-ready feature fields for quantitative analysis or signal generation.
Example use cases
Example prompt
“Pull the current market intelligence features for SOL — I want to see the fear/greed score, 7-day volatility, and 24-hour price return right now.”
Technical details
Endpoint
GEThttps://api.carbon-cashmere.de/v1/features/SOLWhen to prefer
Use this endpoint when you need a rich, pre-computed feature vector for SOL specifically, combining sentiment (fear/greed), volatility, and return metrics in a single call. Prefer this over raw price feeds when you need ML-ready signals or market scoring without building your own feature pipeline.
Side effects
- Invalid or unsupported coin ticker returns 404 or empty response
- Payment not processed (x402 protocol) results in 402 Payment Required
- Rate limit exceeded returns 429
- Stale or missing upstream data may result in null feature values
- Network timeout if upstream data providers are slow
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"coin": "BTC",
"features": {
"fear_greed": 28,
"volatility_7d": 0.032,
"price_return_24h": -0.012
},
"feature_count": 34
}
}Tags
x402
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