> For the complete documentation index, see [llms.txt](https://docs.erathos.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.erathos.com/api/concepts/authentication.md).

# Authentication

To make API calls, an API key associated with a user who has the necessary permissions to perform the desired action in the selected workspace is required.

## Generating an API Key

To generate a new API key, navigate to Settings and User Settings. In the **API Key** section select the "Create" Button. The key will only be displayed at the time of creation, so ensure you save it in a secure location, as it cannot be retrieved later.

{% embed url="<https://www.tella.tv/video/cm3ojlfhr000a03leevw3hx2x/embed?a=0&b=0&loop=0&muted=0&t=0&title=0&wt=0>" %}

{% hint style="info" %}
You can define an expiration date to an api key.
{% endhint %}

## Using the API Key

To authenticate your API requests, include the API key in the header using the following format:

**Headers**

| Name          | Value               |
| ------------- | ------------------- |
| Authorization | `Api-Key <API_KEY>` |