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Carbon & Cashmere Strategy Backtester
x402
Carbon & Cashmere Strategy Backtester is a paid API for AI agents from api.carbon-cashmere.de, paid per call via x402, $0.15/call, status unknown (last checked 2026-09-14).
Runs a backtest of a crypto trading strategy over a specified number of days and returns win rate, Sharpe ratio, and trade count.
Price / call$0.15
Success—
StatusUnknown
How this service works
Professional crypto market intelligence. Real-time prices, signals, and market scoring.
Output
Returns a JSON object containing the coin tested, number of days in the backtest window, the strategy name, and a summary with win rate (percentage), Sharpe ratio, and total number of trades executed during the period.
Example use cases
Validate mean-reversion strategy on ETH
“Can you backtest the mean-reversion strategy on Ethereum over the past 60 days and show me the win rate, Sharpe ratio, and how many trades it would have made?”
Compare strategy risk-adjusted returns
“Before I put any real money in, run a historical backtest of the fear_greed_contrarian strategy on SOL over the last 30 days — I want to see the Sharpe ratio and overall win rate to judge if it's worth deploying.”
Audit trade count over 3 months
“How many trades would the contrarian signal strategy have generated on BTC over the last 90 days, and were they profitable overall based on the win rate?”
Technical details
Endpoint
POSThttps://api.carbon-cashmere.de/v1/backtestWhen to prefer
Use this endpoint when you need to historically validate a specific crypto trading strategy before deploying it, particularly when you want quantitative metrics like Sharpe ratio and win rate. Prefer this over real-time signal endpoints when the goal is retrospective strategy evaluation rather than live decision-making.
Side effects
- Invalid or unsupported coin symbol returns an error or empty result
- Malformed params string causes a 400 bad request
- Unsupported strategy name returns an error
- Insufficient historical data for the requested day range
- Payment failure (x402) blocks the request before execution
- Very short day windows may yield statistically insignificant results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| params | string |
Output
Schema · Response
{
"type": "json",
"example": {
"coin": "BTC",
"days": 90,
"summary": {
"win_rate": 66.7,
"sharpe_ratio": 1.5,
"total_trades": 15
},
"strategy": "fear_greed_contrarian"
}
}Tags
x402
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