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# Subscribe Advanced Quotes

Webull offers an OpenAPI Advanced Market Data Subscription Service that provides access to tick-by-tick trades, order book depth, order queues, time-and-sales details, and other advanced market data.

:::caution
Advanced quotes subscriptions purchased through the Webull mobile app or desktop platform (QT) do not apply to OpenAPI. You need a separate subscription specifically for OpenAPI usage. Only one device may access LV1/LV2 data at any one time.
:::

## Subscribe Advanced Quotes

1. Open and log in to the [Webull Technology Official Website](https://www.webullapp.hk/quote).
![image](https://u1sweb.webullfinance.com/gtms/hk/d6f7956bc4e34a77a4cb8ce558e60fbb.png)
2. Click **Advanced Quotes** from the avatar menu in the upper-right corner to navigate to the Advanced Quotes Center.
![img.png](../assert/advanced_quotes2.png)
3. In the Advanced Quotes Center, select **OpenAPI Advanced Quotes** to view and subscribe to the corresponding data service.
![image](https://u1sweb.webullfinance.com/gtms/hk/1c5a98d02a8d4da78fd393ad4bc23469.png)
![image](https://u1sweb.webullfinance.com/gtms/hk/321f6210ca9c4bdfab5b49a5d90cbf36.png)
After subscribing, you can start using the advanced market data endpoints through the [Data API](data-api.md) or [Data Streaming API](data-streaming-api.md).