# External authenticator

## Registration

The external authenticators need to be registered with the HEM, here is a description of how.

{% content-ref url="external-authenticator/registration" %}
[registration](https://docs.encedo.com/hem-api/~/revisions/1sgifhZ64anc2fyTUTgt/reference/api-reference/authorization/external-authenticator/registration)
{% endcontent-ref %}

## Usage

Step by step description of how to use an external authenticator.

{% content-ref url="external-authenticator/authentication" %}
[authentication](https://docs.encedo.com/hem-api/~/revisions/1sgifhZ64anc2fyTUTgt/reference/api-reference/authorization/external-authenticator/authentication)
{% endcontent-ref %}