curl --request GET \
  --url https://api.0xarchive.io/v1/hyperliquid/hip4/orderbook/{symbol} \
  --header 'X-API-Key: <api-key>'

{
  "success": true,
  "data": {
    "symbol": "BTC",
    "coin": "BTC",
    "timestamp": "2025-01-21T10:30:45.123Z",
    "bids": [
      {
        "px": "42150.00",
        "sz": "1.5",
        "n": 15
      }
    ],
    "asks": [
      {
        "px": "42150.00",
        "sz": "1.5",
        "n": 15
      }
    ],
    "mid_price": "42150.50",
    "spread": "1.00",
    "spread_bps": "2.37"
  },
  "meta": {
    "count": 123,
    "next_cursor": "<string>",
    "request_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
  }
}