Kronos Crypto Data & Forecasts · Volatility BTC

import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";

const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);

const res = await fetchWithPay("https://kronossignals.com/api/v1/volatility/btc", {
  method: "GET",
});
const data = await res.json();

curl -X GET \
  "https://kronossignals.com/api/v1/volatility/btc" \
  -H "X-PAYMENT: <signed x402 payment>"

{
  "as_of": "2026-01-01T00:00:00.000Z",
  "asset": "BTC-USD",
  "disclaimer": "Realized volatility from Binance daily OHLC. Historical; not a forecast. Not financial advice.",
  "note": "All estimates are annualized realized volatility using closed daily candles. Annualized by sqrt(252) trading-day convention.",
  "percentile_context": [
    {
      "current_vol": 0.48,
      "estimator": "parkinson",
      "is_window_high": false,
      "is_window_low": false,
      "max": 1.05,
      "min": 0.22,
      "percentile": 0.72,
      "sample_count": 87,
      "vol_window": "7d"
    },
    {
      "current_vol": 0.58,
      "estimator": "parkinson",
      "is_window_high": true,
      "is_window_low": false,
      "max": 0.98,
      "min": 0.28,
      "percentile": 0.81,
      "sample_count": 87,
      "vol_window": "30d"
    }
  ],
  "source": "Binance daily klines (closed candles only)",
  "symbol": "BTCUSDT",
  "term_structure": [
    {
      "best_estimator": "parkinson",
      "close_to_close": 0.54,
      "garman_klass": 0.51,
      "n_candles": 7,
      "note": "annualized realized volatility",
      "parkinson": 0.48,
      "percentile": 0.72,
      "vol_regime": "elevated",
      "window": "7d"
    },
    {
      "best_estimator": "garman_klass",
      "close_to_close": 0.62,
      "garman_klass": 0.61,
      "n_candles": 30,
      "note": "annualized realized volatility",
      "parkinson": 0.58,
      "percentile": 0.81,
      "vol_regime": "elevated",
      "window": "30d"
    }
  ],
  "vol_30d_annualized": 0.62,
  "vol_7d_annualized": 0.54
}