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ByKaranteli Implied Volatility Index History
x402
ByKaranteli Implied Volatility Index History is a paid API for AI agents from bykaranteli.com, paid per call via x402, $0.002/call, status down (last checked 2026-10-13).
Returns daily implied volatility index (DVOL) history for BTC and ETH, the crypto equivalent of VIX, going back to 2021.
Price / call$0.002
Success—
StatusDown
How this service works
Track verified crypto futures signals with live win rate, profit factor, funding data, and liquidation maps. Deterministic, auditable, operator-first.
Output
A JSON object with ok:true, a dataset label of 'dvol-history', a count of returned rows, and a rows array containing daily implied volatility index readings for the requested symbol(s) with timestamps and DVOL values.
Example use cases
Backtest volatility regime strategy
“I need the daily implied volatility index history for BTC going from January 2022 to December 2022 — give me up to 500 rows so I can backtest a vol-regime switching strategy.”
Compare BTC vs ETH vol surfaces
“Fetch the DVOL history for ETH from the start of 2023 to today so I can compare how ETH implied volatility moved relative to BTC during last year's rallies.”
Options pricing model calibration
“Get me the daily BTC implied volatility index data from 2021 through mid-2024, limit 1000 rows, so I can calibrate my options pricing model with a full vol cycle.”
Technical details
Endpoint
GEThttps://bykaranteli.com/api/x402/dvol-history?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a daily time series of implied volatility for BTC or ETH — the crypto equivalent of the VIX — for backtesting, options pricing, volatility regime analysis, or quant research. It covers data back to 2021 and is purpose-built for crypto derivatives workflows, making it preferable over generic market data APIs that lack dedicated DVOL or implied vol index series.
Side effects
- Invalid or unsupported symbol returns empty rows array
- Date range with no data returns rows:[] with count:0
- Exceeding the per-dataset row cap silently truncates to the cap limit
- Malformed date strings in from/to params may cause errors or empty results
- Payment failure via x402 protocol returns 402 status before data is served
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"rows": [],
"count": 500,
"dataset": "dvol-history"
}
}Tags
x402
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