> For the complete documentation index, see [llms.txt](https://pango.gitbook.io/paas/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://pango.gitbook.io/paas/console-details/project-settings/user-authentification-methods.md).
# Authentication methods
## Overview
{% hint style="warning" %}
The "Auth method" tab is visible for the project owner role only
{% endhint %}
{% hint style="info" %}
**Auth settings** column values are masked by default. You can reveal the real value by clicking on the 
button and hide it back by clicking on the 
button
{% endhint %}
## Methods
Client applications can use these methods for User authentication. See parameter "*auth\_method*" in SDK or REST API [*/user/login*](https://backend.northghost.com/doc/user/index.html#!/user-controller/loginDevice). Each project user should be registered in the project.
The project can use more than one user authentication method. The Platform supports the following authentication methods:
### Firebase
*firebase* - this user authentication method supports the Google Firebase Authentication Service.
This service supports different user sign-in methods - 
*Email/password*, 
*Phone,* 
*Google*, 
*Facebook*, 
*Microsoft*, 
*Apple* and more.
{% hint style="info" %}
If a user signs in on 2 or more devices using the same account, all devices will be assigned to that user account.
{% endhint %}
Auth Settings:
```
{
"firebase_api_key": "AIzaSyBAw-hTjkyR78yqQccPVQHdNAdbJas_Lb0"
}
```
where "*firebase\_api\_key*" is the key of the Firebase project. To learn how to create a Firebase project, refer to this:
{% content-ref url="/pages/-M5TtYekWVXZgXfRJ-je" %}
[Create a Firebase project for User Authentication](/paas/resources/how-to/create-the-firebase-project-for-user-authentication.md)
{% endcontent-ref %}
### Custom methods
If you have a User authentication service, we can make a plugin and support your service for your projects. Requirements for the Plugin are listed here:
{% content-ref url="/pages/-M5TxrkLs2tnOKLOYabJ" %}
[Auth Plugin requirements](/paas/console-details/project-settings/user-authentification-methods/auth-plugin-requirements.md)
{% endcontent-ref %}
Please contact us if you have any questions about the Plugin.
## Actions
### Adding a new method
If you are going to add new user authentication method to the project you need to do the following:
1. Click the "
**Add**" button. You will see a form that looks like this:
Fill in the name of your authentication method. For Firebase - "firebase", for custom - *the name of your plugin*.
Then, you have to input the settings of the authentication method.
2\. Click "**New auth method**". As a result, this new authentication method should show up in the table, for example:
### Editing method parameters
If you are going to change settings of an existing authentication method, you need to do the following:
1. Select an authentication method and click the "
" button. You will see a form that looks like this:
2\. Edit the JSON and click "**Edit auth method**".
### Delete method
If you are going to delete an existing authentication method, you need to do the following:
1. Select an authentication method you want to delete and click the "
" button. You will see a form that looks like this:
2\. Click "**Delete auth method**".
---
# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.
## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter:
```
GET https://pango.gitbook.io/paas/console-details/project-settings/user-authentification-methods.md?ask=
```
The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.