{"uid":"cap_8BHZBYsitpq_6AqniRoOU","slug":"carbon-cashmere-garch-volatility-forecast-eth-e7a90a06","name":"Carbon & Cashmere GARCH Volatility Forecast — ETH","description":"Professional crypto market intelligence. Real-time prices, signals, and market scoring.","url":"https://api.carbon-cashmere.de/v1/garch/ETH","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"_meta":{"disclaimer":"Informational research data only — not investment advice."},"symbol":"BTC","forecast":{"1d":0.41,"7d":0.43,"30d":0.45},"parameters":{"omega":0.001,"beta_1":0.89,"alpha_1":0.08,"persistence_alpha_plus_beta":0.97},"half_life_days":4.2,"conditional_vol_now_annualized":0.42}},"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_orFnLGwE20lPFwg7_NP-e","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 GARCH-model volatility forecasts, parameters, and half-life estimates for Ethereum (ETH)","exampleAgentPrompt":"What's Ethereum's current GARCH volatility forecast — I want the annualized conditional vol right now, the 1-day, 7-day, and 30-day forecasts, the persistence level, and how many days until volatility reverts to its mean?","exampleUseCases":null,"resultDescription":"A JSON object containing: current annualized conditional volatility, short-term volatility forecasts at 1d/7d/30d horizons, fitted GARCH parameters (omega, alpha_1, beta_1, persistence), and the estimated half-life in days for volatility to mean-revert. Includes a research disclaimer.","failureModes":["Invalid or unsupported symbol returns an error","Payment not included or insufficient (x402 payment required, $0.05 USDC)","Service temporarily unavailable or model not yet computed for current period","Rate limit exceeded for repeated rapid calls"],"whenToPreferThis":"Use this endpoint when you need quantitative, model-based volatility estimates for ETH specifically — especially when you need GARCH parameters, persistence metrics, or a half-life for mean-reversion timing. Prefer this over simple price endpoints when your use case involves risk modeling, options pricing intuition, or assessing whether current volatility is elevated relative to long-run levels.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T13:06:06.429Z","isFirstParty":false}