curl --request GET \
  --url https://api.tickdb.ai/v1/market/depth \
  --header 'X-API-Key: <api-key>'

{
  "code": 0,
  "message": "success",
  "data": {
    "symbol": "700.HK",
    "timestamp": 1768274016162,
    "bids": [
      [
        "626",
        "19700"
      ],
      [
        "625.5",
        "40800"
      ]
    ],
    "asks": [
      [
        "626.5",
        "36100"
      ],
      [
        "627",
        "50700"
      ]
    ]
  }
}