# Timeline-cards

{% hint style="info" %}
These endpoints are in beta testing. Some features may not work as documented or may behave unexpectedly. 
{% endhint %}

Use Timeline Cards to integrate your app into Acquire's conversation timeline. For example, Timeline Cards are used to track purchase history and create a timeline of customer purchase events. 

{% hint style="success" %}
How to use the card, [click here](https://github.com/acquireio/custom-cards/).
{% endhint %}

### Permissions

To request a Custom Card endpoint, you will need a valid API Key with Custom Card access permissions.


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://developer.acquire.io/rest-apis/cards/interaction-cards-middle.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.