{"uid":"cap_TxwPXhLipUIfO8qFQ7ema","slug":"carbon-cashmere-cointegration-analysis-api-eth-sol-a0b55110","name":"Carbon & Cashmere Cointegration Analysis API (ETH-SOL)","description":"Professional crypto market intelligence. Real-time prices, signals, and market scoring.","url":"https://api.carbon-cashmere.de/v1/cointegration/ETH-SOL","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"base":"BTC","pair":"BTC-ETH","_meta":{"disclaimer":"Informational research data only — not investment advice."},"quote":"ETH","spread":{"current":0.023,"zscore_current":1.42,"beta_coefficient":0.89},"engle_granger":{"p_value":0.012,"test_statistic":-3.42,"critical_values":{"5pct":-3.38}},"lookback_days":90,"mean_reversion":{"adf_p_value":0.018,"half_life_days":4.2},"is_cointegrated_at_5pct":true,"is_cointegrated_at_10pct":true}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.05","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":"$0.05/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_wfnhHwh2jTx2nI7rqPr4H","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.05","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns cointegration test results and mean-reversion analytics for the ETH-SOL trading pair, including Engle-Granger statistics, z-scores, and half-life estimates.","exampleAgentPrompt":"Run a cointegration test on ETH and SOL — I want to know if they're cointegrated at the 5% level, what the current spread z-score is, and how many days it typically takes for the spread to revert to the mean.","exampleUseCases":null,"resultDescription":"Returns a JSON object with the base/quote pair labels, Engle-Granger test statistic and p-value with critical values, whether cointegration is confirmed at 5% and 10% significance, the current spread value and z-score, beta coefficient, ADF p-value for mean reversion, and estimated half-life in days over a 90-day lookback window.","failureModes":["Invalid or unsupported trading pair returns error","Insufficient historical data for lookback period","Payment not included or invalid results in 402 Payment Required","Rate limit exceeded returns 429 error","Service downtime returns 5xx error"],"whenToPreferThis":"Use this endpoint when you need rigorous statistical cointegration testing between ETH and SOL specifically, especially for pairs trading strategies, statistical arbitrage signal generation, or validating a long-run equilibrium relationship. Prefer this over simple correlation metrics when you need formal hypothesis testing (Engle-Granger) and mean-reversion half-life estimates.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:56:40.138Z","isFirstParty":false}