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

{
  "code": 0,
  "message": "success",
  "data": {
    "count": 11,
    "description": "Supported K-line time intervals for historical data queries",
    "intervals": [
      "1m",
      "3m",
      "5m",
      "15m",
      "30m",
      "1h",
      "2h",
      "4h",
      "1d",
      "1w",
      "1M"
    ]
  }
}