---
updatedAt: 2025-08-06T09:42:35.000Z
agentTools:
  projectIndex: https://developers.bookingexperts.com/llms.txt
---

# API Key

This option is for apps for your own use. You will have one API key per Organization. Follow the following steps to get an API key for your Demo organization:

1. Configure your App through My Apps and make sure to set **API key** as the Authentication method;
2. Install your App within your own organization and you will be prompted with an **API key**;
3. You can use this API key in API requests by passing it in the `X-API-KEY` header.

## App API Key

The App API key can only be used for the 'App' namespace of the API

* [App Availabilities](https://booking-experts.readme.io/reference/app-availabilities-index)
* [App Supported Payment Methods](https://booking-experts.readme.io/reference/app-supported-payment-methods-index)

This namespace contains endpoints that are not dependent on a specific Organization or Administration. For example, the App namespace provides the App Availabilities endpoint to perform an Availabilty Search over multiple subscriptions at once.

The App API Key can be used by specifying it in the `X-APP-API-KEY` header.