The TM-API is a Bungeecord and Spigot API that I use in the development of my plugins, whether free or not.
This API is now provided in a royalty-free version under the GNU-Linux GPL version 3 licence.
Informations :
!!!! WARNING !!!!
This API works with Spigot and Bungeecord 1.18 to 1.21 using the appropriate jar for your version. For Spigot it is not currently useful but will be when I post plugins that work with the Spigot API.