Mattermost integration for WordPress. Tested with Mattermost 5.30.1+ and WordPress 5.5+.

Roy Orbitson

SlashPress

A conduit between your chat service and your WordPress sites.

joho68

WebbPlatsen

This WordPress plugin provides integration with Mattermost.
The plugin provides OAuth2 authentication functionality for logging into WordPress via Mattermost.
The plugin provides OAuth2 authentication functionality for registering new WordPress users via Mattermost.
The plugin additionally provides the following notification functionality, using an incoming webhook in Mattermost:
<ul>
<li>Notifications for successful login</li>
<li>Notifications for failed login</li>
<li>Notifications for unknown user login attempt</li>
<li>Notifications for password reset</li>
<li>Notifications for plugin activation</li>
<li>Notifications for plugin deactivation</li>
<li>Notifications for plugin uninstallation</li>
<li>Notifications for new/edited user</li>
<li>Notifications for deleted user</li>
</ul>
The plugin can also make use of additional functionality such as posting to a specific channel/user, overriding bot names, and additionally mention specific users.
Other notes:
<ul>
<li>This plugin may work with earlier versions of WordPress</li>
<li>This plugin has been tested with WordPress 5.5.3 to 6.9.x at the time of this writing</li>
<li>This plugin has been tested with Mattermost 5.x to 11.x at the time of this writing</li>
<li>This plugin has been tested with PHP 7.4.x, 8.1.x, 8.2.x, and 8.3.x at the time of this writing</li>
<li>This plugin optionally makes use of the <code>mb_</code> PHP functions</li>
<li>This plugin may create entries in your PHP error log (if active)</li>
<li>This plugin contains no Javascript</li>
<li>This plugin contains no tracking code and does not process or store any information about users</li>
</ul>
<h3>Credits</h3>
Copyright 2020-2026 Joaquim Homrighausen; all rights reserved.
The Cloudbridge Mattermost WordPress Plugin was written by Joaquim Homrighausen while converting caffeine into code.
Cloudbridge Mattermost is sponsored by <a href="https://webbplatsen.se" rel="nofollow ugc">WebbPlatsen i Sverige AB</a>, Stockholm, Sweden.
Commercial support and customizations for this plugin is available from WebbPlatsen i Sverige AB in Stockholm, Sweden.
If you find this plugin useful, the author is happy to receive a donation, good review, or just a kind word.
If there is something you feel to be missing from this plugin, or if you have found a problem with the code or a feature, please do not hesitate to reach out to support@webbplatsen.se.
This plugin can also be downloaded from <a href="https://code.webbplatsen.net/wordpress/cloudbridge-mattermost/" rel="nofollow ugc">code.webbplatsen.net</a> and <a href="https://github.com/joho1968/cloudbridge-mattermost" rel="nofollow ugc">GitHub</a>

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