{"uid":"cap_8oIzYCor0p5vBxuY8TJzw","slug":"kronos-signals-realized-volatility-api-9ac0df72","name":"Kronos Signals Realized Volatility API","description":"Realized volatility for 16 crypto assets (BTC/ETH/SOL/BNB/XRP/DOGE/ADA/AVAX/LINK/DOT/LTC/TRX/BCH/ATOM/NEAR/APT): 7-day, 30-day, and 90-day annualized realized vol using three estimators (close-to-close, Parkinson, Garman-Klass) from Binance daily OHLC closed candles only. Essential for risk management, position sizing, and options pricing. Pay-per-call via x402.","url":"https://kronossignals.com/api/v1/volatility/btc","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"pathParams":{"type":"object"},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","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":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_r_PzLOlqRjLdv2DODq2eh","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns 7-day, 30-day, and 90-day annualized realized volatility for BTC and 15 other crypto assets using three estimators (close-to-close, Parkinson, Garman-Klass) derived from Binance daily OHLC data.","exampleAgentPrompt":"What are the 7-day, 30-day, and 90-day annualized realized volatility figures for Bitcoin right now, including the Parkinson and Garman-Klass estimates, so I can size my position properly?","exampleUseCases":null,"resultDescription":"Returns three realized volatility metrics (7-day, 30-day, 90-day annualized) computed via three estimators (close-to-close, Parkinson, Garman-Klass) for the requested crypto asset, based on Binance daily OHLC candle data.","failureModes":["Asset not in supported 16-asset list — returns 404 or error","Payment not provided or invalid x402 payment header — returns 402 Payment Required","Binance OHLC data unavailable or stale — may return partial or error response","Malformed asset path parameter — returns 400 Bad Request"],"whenToPreferThis":"Use this endpoint when you need multiple realized volatility estimators (not just close-to-close) across multiple lookback windows for a specific crypto asset, especially for options pricing, risk management, or position sizing workflows that require rigorous volatility inputs derived from Binance OHLC data.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:46:25.698Z","isFirstParty":false}