CryptoDataAPI: Get Volatility Index History. Daily CVI + vol-stress history, up ...
https://api.realtimeapi.ai/v1/cryptodata/volatility/index/historyOverview
CryptoDataAPI: Get Volatility Index History. Daily CVI + vol-stress history, up to a year (**Pro Plus**). One point per UTC day in ``[today - days, today]``. From 2026-08-24 values come from each day's live archived snapshot. Earlier days are reconstructed from daily klines with the live formula and carry ``backfilled: true`` — CVI was only archived from 2026-07-23, and until 2026-08-24 the live universe still counted delisted exchange pairs with frozen prices, which roughly doubled the...