{"uid":"cap_X3JX0q1Rs7y88hR3F3gEu","slug":"carbon-cashmere-strategy-backtester-98f1ead0","name":"Carbon & Cashmere Strategy Backtester","description":"Professional crypto market intelligence. Real-time prices, signals, and market scoring.","url":"https://api.carbon-cashmere.de/v1/backtest","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"params":{"type":"string"}}},"responseSchema":{"type":"json","example":{"coin":"BTC","days":90,"summary":{"win_rate":66.7,"sharpe_ratio":1.5,"total_trades":15},"strategy":"fear_greed_contrarian"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.15","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.15/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.15","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.15","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_jlCxzRf31dO9TR625eNRR","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.15","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Runs a backtest of a crypto trading strategy over a specified number of days and returns win rate, Sharpe ratio, and trade count.","exampleAgentPrompt":"Run a backtest of the fear_greed_contrarian strategy on BTC over the last 90 days and tell me the win rate and Sharpe ratio.","exampleUseCases":[{"title":"Validate mean-reversion strategy on ETH","prompt":"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?"},{"title":"Compare strategy risk-adjusted returns","prompt":"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."},{"title":"Audit trade count over 3 months","prompt":"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?"}],"resultDescription":"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.","failureModes":["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"],"whenToPreferThis":"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.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:57:27.266Z","isFirstParty":false}