This plugin allows you to receive webmentions and use that data with your own plugin.
Tratschtante receives webmentions from webmention.io using their webhook. Whenever a webmention is received it will convert the data to an internal format and trigger a kirby hook. Other plugins can subscribe to that hook and do whatever they want with the give data, for example creating a comment.
More infos on how to install and configure on Github: https://github.com/mauricerenck/tratschtante