The installation of this plugin is very simple.
To get started, head to your plugin installation screen:
For single sites:
https://yourdomain.dev/wp-admin/plugin-install.php
For multi-sites:
https://yourdomain.com/wp-admin/network/plugin-install.php
Now search for WP Webhooks within the search bar. Once you have done this, you will see the WP Webhooks plugin. Just click Install and after Activate.
You can also download the plugin manually here: https://wordpress.org/plugins/wp-webhooks/
That’s it! Now you can easily access the plugin inside of your Admin area under Settings > WP Webhooks