{"uid":"cap_x-NiOVz7L1MT5xXJa-x_3","slug":"api-carbon-cashmere-de-b99fbf5f","name":"Carbon Cashmere Rolling Pearson Correlation","description":"Rolling Pearson correlation between two coins over configurable window (7-90d). Pair format in path: BASE-QUOTE (e.g. /v1/rolling-correlation/BTC-ETH). Returns current correlation, regime classification (strongly_positive/positive/weak/negative/strongly_negative), trend direction (strengthening/weakening/stable), summary statistics over lookback, and rolling snapshot sampled to 30 points. Informational research data — not investment advice.","url":"https://api.carbon-cashmere.de/v1/rolling-correlation/:pair","method":"GET","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.1","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","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_MoKDRoGPL8lFNaZhb2bU5","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":"Computes rolling Pearson correlation between two cryptocurrencies over a configurable 7–90 day window, returning correlation value, regime classification, trend direction, summary statistics, and a 30-point rolling snapshot.","exampleAgentPrompt":"What's the rolling 30-day Pearson correlation between BTC and ETH right now — is it strengthening or weakening, and which regime is it in?","exampleUseCases":null,"resultDescription":"Returns the current Pearson correlation coefficient between the two coins, a regime label (strongly_positive, positive, weak, negative, or strongly_negative), a trend direction (strengthening, weakening, or stable), summary statistics over the lookback window, and a 30-point rolling snapshot of the correlation over time.","failureModes":["Invalid pair format (not BASE-QUOTE) returns 400 error","Unsupported coin ticker returns 404 or empty data","Window outside 7–90 day range may return validation error","Insufficient historical data for very new coins","Upstream data unavailability causes 503 or stale data"],"whenToPreferThis":"Use this endpoint when you need quantitative, statistically grounded correlation analysis between two specific crypto assets with regime classification and trend direction — particularly for portfolio diversification research, pair trading analysis, or understanding co-movement dynamics over configurable time windows. Prefer over generic price endpoints when the goal is correlation intelligence rather than raw price data.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T18:57:36.137Z","isFirstParty":false}