curl --request GET \
  --url https://api.amberdata.com/markets/derivatives/analytics/futures-perpetuals/funding-rates \
  --header 'x-api-key: <api-key>'

{
  "status": 200,
  "title": "OK",
  "description": "Successful request",
  "payload": {
    "data": [
      {
        "exchange": "binance",
        "fundingRateIntervalHours": 8,
        "fundingRateNormalized8h": 0.00004817,
        "instrument": "BTCUSDC",
        "marginType": "linear",
        "quoteAsset": "USDC",
        "realizedFunding": 0.00004817,
        "realizedFundingCumulated": 0.00004817,
        "symbol": "binance_BTCUSDC",
        "timestamp": "2024-02-01 00:00:00 000",
        "underlying": "BTC"
      },
      {
        "exchange": "binance",
        "fundingRateIntervalHours": 8,
        "fundingRateNormalized8h": 0.0001,
        "instrument": "BTCUSDT",
        "marginType": "linear",
        "quoteAsset": "USDT",
        "realizedFunding": 0.0001,
        "realizedFundingCumulated": 0.0001,
        "symbol": "binance_BTCUSDT",
        "timestamp": "2024-02-01 00:00:00 000",
        "underlying": "BTC"
      },
      {
        "exchange": "binance",
        "fundingRateIntervalHours": 8,
        "fundingRateNormalized8h": 0.0001,
        "instrument": "BTCUSD_PERP",
        "marginType": "inverse",
        "quoteAsset": "USD",
        "realizedFunding": 0.0001,
        "realizedFundingCumulated": 0.0001,
        "symbol": "binance_BTCUSD_PERP",
        "timestamp": "2024-02-01 00:00:00 000",
        "underlying": "BTC"
      },
      {
        "exchange": "bybit",
        "fundingRateIntervalHours": 8,
        "fundingRateNormalized8h": 0.0001,
        "instrument": "BTCPERP",
        "marginType": "linear",
        "quoteAsset": "USDC",
        "realizedFunding": 0.0001,
        "realizedFundingCumulated": 0.0001,
        "symbol": "bybit_BTCPERP",
        "timestamp": "2024-02-01 00:00:00 000",
        "underlying": "BTC"
      },
      {
        "exchange": "bybit",
        "fundingRateIntervalHours": 8,
        "fundingRateNormalized8h": 0.0001,
        "instrument": "BTCUSD",
        "marginType": "inverse",
        "quoteAsset": "USD",
        "realizedFunding": 0.0001,
        "realizedFundingCumulated": 0.0001,
        "symbol": "bybit_BTCUSD",
        "timestamp": "2024-02-01 00:00:00 000",
        "underlying": "BTC"
      }
    ]
  }
}