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kronossignals.com options-iv btc
https://kronossignals.com/api/v1/options-iv/btc
answers 402
Implied volatility surface for BTC and ETH from Deribit options (public API, no auth). Returns ATM IV (annualized %), IV rank and IV percentile from Kronos iv_history (daily cron), term structure (weekly/1m/3m ATM IV + contango/backwardation/flat shape label), 25-delta risk reversal (BS-approximated strikes), 10-delta wing IVs, max-pain strike across top-5 expiries, and a vol-regime label. Falls b
We sent a real
GET request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.03
- Network
- base
- Pay to
- 0x36038e1d712c5e39f35952164ec58ec2b96caee7
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- GET
- Response latency
- 90 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-08-15T14:21:46.270Z (3d ago)
- Category
- identity
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fkronossignals.com%2Fapi%2Fv1%2Foptions-iv%2Fbtc"