{"uid":"cap_EzDb-igYD1Gd1NWKvKtTp","slug":"carbon-cashmere-signal-backtest-api-eth-293d820c","name":"Carbon & Cashmere Signal Backtest API – ETH","description":"Professional crypto market intelligence. Real-time prices, signals, and market scoring.","url":"https://api.carbon-cashmere.de/v1/signal-backtest/ETH","method":"GET","headers":{},"bodySchema":null,"responseSchema":{"type":"json","example":{"coin":"BTC","days":30,"summary":{"win_rate":64.3,"sharpe_ratio":1.35,"total_trades":28,"profit_factor":1.82},"strategy":"analyst_v3"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.1","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":"$0.1/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_6AU4um99jyn-TwJ4CV5ri","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.1","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a backtested trading signal performance summary for ETH, including win rate, Sharpe ratio, profit factor, and trade count over a specified lookback period.","exampleAgentPrompt":"Pull the Carbon & Cashmere signal backtest results for ETH so I can see the win rate, Sharpe ratio, and profit factor for the analyst_v3 strategy over the last 30 days.","exampleUseCases":null,"resultDescription":"A JSON object containing the coin symbol (ETH), the lookback period in days, the strategy name (analyst_v3), and a summary with win_rate (%), Sharpe ratio, total number of trades, and profit factor — quantifying historical signal performance.","failureModes":["Unsupported coin symbol returns 404 or empty result","Payment failure (insufficient USDC balance) returns 402 via x402 protocol","Network timeout if upstream market data is unavailable","Rate limiting if too many concurrent requests are made","Stale or missing backtest data if insufficient historical data exists for the coin"],"whenToPreferThis":"Use this endpoint when you need quantitative backtested performance metrics (win rate, Sharpe ratio, profit factor) for ETH trading signals from the Carbon & Cashmere analyst_v3 strategy, rather than raw price feeds or real-time signal triggers. Prefer this over generic price APIs when the goal is to evaluate signal quality or strategy viability.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:46:39.903Z","isFirstParty":false}