> For the complete documentation index, see [llms.txt](https://en.apis.alltick.co/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://en.apis.alltick.co/websocket-api/websocket-interface-api.md).

# Websocket Interface API

English / [中文](https://apis.alltick.co/websocket-api/gu-piao-websocket-jie-kou-api)

{% content-ref url="/pages/dKvmcv8laZmOcCCR2pUH" %}
[Ping Pong](/websocket-api/websocket-interface-api/ping-pong.md)
{% endcontent-ref %}

{% content-ref url="/pages/GFWQMttc5hcqPRIZJK2p" %}
[Order Book (Real-time Tick-by-Tick, Market Depth) Subscription](/websocket-api/websocket-interface-api/handicap-quote-subscription.md)
{% endcontent-ref %}

{% content-ref url="/pages/8AjgVh4UO2uHZDxUzKK7" %}
[Latest Trade Price (Real-time Tick Data) Batch Subscription](/websocket-api/websocket-interface-api/transaction-quote-subscription.md)
{% endcontent-ref %}

{% content-ref url="/pages/xnMC91iEWzpIhWX0vnRu" %}
[Cancel quote subscription](/websocket-api/websocket-interface-api/cancel-quote-subscription.md)
{% endcontent-ref %}

### Official Website

{% hint style="info" %}
Official website: <https://alltick.co/>
{% endhint %}