curl --request GET \
  --url https://api.hayinsights.com/openapi/v1/crypto \
  --header 'X-API-Key: <api-key>'

{
  "success": true,
  "statusCode": 200,
  "data": {
    "totalMarketCap": 2156391783530.09,
    "volume24h": 74938670897.24,
    "marketCapChange24h": -2.6314,
    "volumeChange24h": -11.6008,
    "dominance": {
      "btc": 58.148,
      "eth": 9.476,
      "bnb": 3.585,
      "sol": 1.843,
      "xrp": 3.242,
      "other": 23.706
    },
    "fearGreed": {
      "value": 19,
      "classification": "Extreme fear",
      "date": "2026-06-18"
    },
    "trending": [
      {
        "symbol": "FF",
        "name": "Falcon Finance",
        "rank": 98,
        "priceChange24h": 99.3142,
        "tag": "gainer"
      },
      {
        "symbol": "DASH",
        "name": "Dash",
        "rank": 74,
        "priceChange24h": 28.9689,
        "tag": "gainer"
      }
    ]
  },
  "meta": {
    "timestamp": "2026-06-19T08:50:00.956Z"
  }
}