This is the place where we develop and maintain most of SDL's plugins for Trados Studio. If you want to help us or just looking for some examples this is the perfect place.
Did you mean to post this issue for the legacy plugin mt enhanced? If you are using trados 2019, I believe it is maintained by SDL, you may be in the wrong place. If that's the case, try here:
In Trados 2019, installer works but plugin cannot be added to the system. gives the following api error.