> ## Documentation Index
> Fetch the complete documentation index at: https://pleo-preview.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Authentication for the Legacy API

> All REST API resources are authenticated with HTTP Bearer access tokens. You can manage access tokens on your company settings page.

> [!NOTE]
>
> 🚧 This page refers to the Legacy API which is deprecated

## API Keys

The Pleo API uses API keys to authenticate requests. You can view and manage your API keys in the Pleo UI in "Settings"

> [!NOTE]
>
> 🚧 **Keep your key safe!**
>
> Your API keys carry many privileges, so be sure to keep them secure! Do not share your secret API keys in publicly accessible areas such as GitHub, client-side code, and so forth.

Create your individual **Open API Token** with the steps below:

1. Open the Pleo web app and go to your Settings

2. Click on Open API

3. Click on Create token in the top right corner

![](https://mintcdn.com/pleo-preview/YgarRD1-Etv8jE8a/images/reference/cbd085b-password_bird_3-05.png?fit=max\&auto=format\&n=YgarRD1-Etv8jE8a\&q=85\&s=3d86f93c1c5582250d0dea6d7a202ed1)

## Independent Software Vendors

Please ensure that you have an active Pleo **admin** account.

> [!NOTE]
>
> 📘 **If you are integrating on behalf of your customer.**
>
> Please contact us at [api@pleo.io](mailto:api@pleo.io) !


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.