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

{
  "status": 200,
  "title": "OK",
  "description": "Successful request",
  "payload": {
    "data": [
      {
        "timestamp": "1704067200000",
        "symbol": "bybit_BTC-USDC",
        "basisUSD": 293.8,
        "apr": 36.11
      },
      {
        "timestamp": "1704067200000",
        "symbol": "deribit_BTC-USD",
        "basisUSD": 296,
        "apr": 36.38
      },
      {
        "timestamp": "1704067200000",
        "symbol": "huobi_BTC-USD",
        "basisUSD": 283.9,
        "apr": 34.89
      },
      {
        "timestamp": "1704067200000",
        "symbol": "okex_BTC-USD",
        "basisUSD": 297.3,
        "apr": 36.54
      },
      {
        "timestamp": "1704067200000",
        "symbol": "okex_BTC-USDC",
        "basisUSD": 287,
        "apr": 35.28
      },
      {
        "timestamp": "1704067200000",
        "symbol": "okex_BTC-USDT",
        "basisUSD": 290.3,
        "apr": 35.68
      },
      {
        "timestamp": "1704070800000",
        "symbol": "bybit_BTC-USDC",
        "basisUSD": 300.9,
        "apr": 36.86
      },
      {
        "timestamp": "1704070800000",
        "symbol": "deribit_BTC-USD",
        "basisUSD": 301.6,
        "apr": 36.96
      },
      {
        "timestamp": "1704070800000",
        "symbol": "huobi_BTC-USD",
        "basisUSD": 280.7,
        "apr": 34.4
      },
      {
        "timestamp": "1704070800000",
        "symbol": "okex_BTC-USD",
        "basisUSD": 302.9,
        "apr": 37.12
      },
      {
        "timestamp": "1704070800000",
        "symbol": "okex_BTC-USDC",
        "basisUSD": 292.8,
        "apr": 35.88
      },
      {
        "timestamp": "1704070800000",
        "symbol": "okex_BTC-USDT",
        "basisUSD": 298.3,
        "apr": 36.55
      },
      {
        "timestamp": "1704074400000",
        "symbol": "bybit_BTC-USDC",
        "basisUSD": 306.6,
        "apr": 37.57
      },
      {
        "timestamp": "1704074400000",
        "symbol": "deribit_BTC-USD",
        "basisUSD": 305.6,
        "apr": 37.44
      },
      {
        "timestamp": "1704074400000",
        "symbol": "huobi_BTC-USD",
        "basisUSD": 277.3,
        "apr": 33.98
      },
      {
        "timestamp": "1704074400000",
        "symbol": "okex_BTC-USD",
        "basisUSD": 311,
        "apr": 38.1
      },
      {
        "timestamp": "1704074400000",
        "symbol": "okex_BTC-USDC",
        "basisUSD": 301.3,
        "apr": 36.92
      },
      {
        "timestamp": "1704074400000",
        "symbol": "okex_BTC-USDT",
        "basisUSD": 298.3,
        "apr": 36.55
      }
    ]
  }
}