PHP Plugins API
If you're a Matomo user and need Matomo to do something it doesn't do; or maybe you use another web app and want to integrate it with this amazing analytics software you've heard so much about — well, you've come to the right place!
All the functionality you see when you use Matomo is provided by Matomo Plugins. If you want to add more functionality to Matomo, you can create your own plugin then distribute it on the Matomo Marketplace so that others can use it.