{"uid":"cap__UmjP_aczPxdfKsIAJvJJ","slug":"carbon-cashmere-volatility-api-sol-5a5927c4","name":"Carbon & Cashmere Volatility API – SOL","description":"Professional crypto market intelligence. Real-time prices, signals, and market scoring.","url":"https://api.carbon-cashmere.de/v1/volatility/SOL","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","range_based":{"parkinson":0.41,"garman_klass":0.4},"downside_30d":0.28,"realized_vol":{"7d":0.32,"30d":0.38,"full_period":0.42},"vol_of_vol_30d":0.09}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_did6ISRFehb3yv5amk8OM","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns multi-timeframe realized volatility, range-based volatility estimators, downside risk, and vol-of-vol metrics for Solana (SOL).","exampleAgentPrompt":"What's SOL's current volatility profile — give me the Parkinson, Garman-Klass, 7-day and 30-day realized vol, and the vol-of-vol so I can gauge how risky it is right now?","exampleUseCases":[{"title":"Assess SOL options pricing risk","prompt":"I'm about to write some covered calls on Solana — can you pull the Parkinson and Garman-Klass vol estimates alongside the 30-day realized vol so I can tell if the options market is overpricing or underpricing risk right now?"},{"title":"Compare short vs long-term volatility","prompt":"How does SOL's 7-day realized volatility compare to its 30-day figure at the moment? I want to know if we're in a vol expansion or contraction phase before I size my position."},{"title":"Evaluate SOL downside risk exposure","prompt":"I've got a big Solana position and I'm worried about tail risk — what's the current 30-day downside volatility and vol-of-vol so I can decide whether to hedge or trim my exposure?"}],"resultDescription":"A JSON object containing: Parkinson and Garman-Klass range-based volatility estimates, realized volatility for 7-day, 30-day, and full-period windows, 30-day downside volatility, and 30-day vol-of-vol for SOL, plus an informational disclaimer.","failureModes":["Invalid or unsupported symbol in path returns an error","Payment not included or invalid x402 payment header results in 402 Payment Required","Network or upstream data unavailability may return a 503","Rate limiting if call volume exceeds plan thresholds"],"whenToPreferThis":"Choose this endpoint when you need quantitative volatility metrics specifically for SOL/Solana, including professional-grade estimators like Parkinson and Garman-Klass that go beyond simple standard deviation, plus multi-timeframe realized vol and downside risk. Prefer over generic price APIs when risk quantification or volatility regime analysis is the goal.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:49:51.538Z","isFirstParty":false}