> For the complete documentation index, see [llms.txt](https://docs.aisera.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.aisera.com/aisera-platform/adding-data-to-your-tenant/integrations-and-data-sources/supported-auth-types-for-custom-integrations/token.md).

# Token

## Overview

Token authentication uses an Access Token provided by the external system to authenticate. The Aisera Platform will make an authentication request to the provided URL using the Authorization header with the `Bearer` prefix as shown below.

```http
Authorization: Bearer <token>
```

{% hint style="info" %}
If you you need to use the Raw Access token without the `Bearer` prefix, use[ Basic Authentication](/aisera-platform/adding-data-to-your-tenant/integrations-and-data-sources/supported-auth-types-for-custom-integrations/basic-authentication.md).
{% endhint %}

<div align="left"><figure><img src="/files/Pt4IKz94t278yOJUnJke" alt=""><figcaption></figcaption></figure></div>

## Fields

<table><thead><tr><th width="164">Fields</th><th>Description</th></tr></thead><tbody><tr><td>Access Token </td><td>The Access Token that is provided by the external system you are integrating with.</td></tr></tbody></table>