curl --request GET \
  --url https://futures.kraken.com/derivatives/api/v3/tickers/{symbol}

{
  "result": "success",
  "ticker": {
    "tag": "perpetual",
    "pair": "XBT:USD",
    "symbol": "pi_xbtusd",
    "markPrice": 30209.9,
    "bid": 8634,
    "bidSize": 1000,
    "ask": 49289,
    "askSize": 139984,
    "vol24h": 15304,
    "volumeQuote": 40351.34,
    "change24h": 1.9974017538161748,
    "openInterest": 149655,
    "open24h": 49289,
    "indexPrice": 21087.8,
    "last": 49289,
    "lastTime": "2022-06-17T10:46:35.705Z",
    "lastSize": 100,
    "suspended": false,
    "fundingRate": 1.18588737106e-7,
    "fundingRatePrediction": 1.1852486794e-7,
    "postOnly": false
  },
  "serverTime": "2022-06-17T11:00:31.335Z"
}