The Minecraft animation system is a set of programs designed to let you animate armor stands other entities in Minecraft. This is a blender addon designed for exporting your animation into a json file which can be compiled into an mcfunction with a java program.
To install, go to the Releases tab and download the latest release. Then, in Blender, go to the addons tab in User Preferences, click "Install Add-on from File..." and locate the zip you downloaded.
This is still very early alpha software. If you spot any bugs, make sure to tell me. You can email me at thesam54123@gmail.com. If you feel you can improve apon this and the related repos, feel free to create a pull request.