curl --request GET \
  --url https://pro-api.coingecko.com/api/v3/derivatives \
  --header 'x-cg-pro-api-key: <api-key>'

[
  {
    "market": "Binance (Futures)",
    "symbol": "BTCUSDT",
    "index_id": "BTC",
    "price": "77034.8",
    "price_percentage_change_24h": -1.1733397846861013,
    "contract_type": "perpetual",
    "index": 76691.4276087,
    "basis": -0.138769748300737,
    "spread": 0.01,
    "funding_rate": 0.004308,
    "open_interest": 7497508223.83,
    "volume_24h": 9623150393.3656,
    "last_traded_at": 1779807819,
    "expired_at": null
  },
  {
    "market": "Binance (Futures)",
    "symbol": "ETHUSDT",
    "index_id": "ETH",
    "price": "2113.92",
    "price_percentage_change_24h": -1.213464572845443,
    "contract_type": "perpetual",
    "index": 2099.55744186,
    "basis": -0.19217332857957786,
    "spread": 0.01,
    "funding_rate": 0.005327,
    "open_interest": 4563725156.36,
    "volume_24h": 7655835901.46112,
    "last_traded_at": 1779807818,
    "expired_at": null
  }
]