Kronos Crypto Data & Forecasts
x402Grade BLast checked 3 hours ago
GET https://kronossignals.com/api/v1/volatility/btc
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.
Price$0.02per price or market lookup · paid in USD on Base
Uptime100%
4/4 probes · 158.5 ms
Score78Grade B
Paid usage, 30 days4payers · 4 calls
How to buy
This endpoint takes pay-per-call payments over x402. Call it once without paying to see its live price; any x402 client then pays and retries automatically.
curl -i -X GET "https://kronossignals.com/api/v1/volatility/btc"
# HTTP/1.1 402 Payment Required: price, asset and payTo are in the responseRecent checks
| Checked (UTC) | Result | Status | Time | Live price |
|---|---|---|---|---|
| 2026-10-11 08:00 | Valid 402 | 402 | 148 ms | $0.02 |
| 2026-10-11 03:30 | Valid 402 | 402 | 169 ms | $0.02 |
| 2026-10-10 23:15 | Valid 402 | 402 | 825 ms | $0.02 |
| 2026-10-10 17:30 | Valid 402 | 402 | 95 ms | $0.02 |
Receipts
No test purchases yet. Graded test purchases are next on our list; until then every number here comes from unpaid checks.
What a check proves