MCA is licensed with the MCA Minecraft Mod license, previously GPL v3. This license is available here. It is simple to understand, but here it is in bullet-point form.
You can create monetized YouTube videos showcasing this mod.
You can re-distribute MCA at will on your website, however you can only distribute this mod through our adf.ly links. Do not use your own links or mirrors.
You can use MCA in a modpack, however you must provide credit to us and link to this forum page or our website.
Your modpack must not generate revenue of any kind. Exceptions apply.
You must not modify MCA's source code, file structure, binaries, or assets.
Troubleshooting is your responsibility if you create a modpack and MCA fails to work correctly.
Source code is made available for educational purposes only, with the exception of the MCA API.
MCA, its source code, and byte code cannot be modified, recompiled, or redistributed for public use except by the maintainer of the repository.
We reserve the right to incorporate private modifications of MCA into the public version, with adequate credit provided.
Any modification of this mod’s code, binaries, or assets is strictly forbidden from public distribution.
Texture packs and resource packs are welcomed and encouraged, but may only contain the modified textures and/or sounds. You cannot distribute a copy of this mod with the texture/resource pack already installed.
This mod, its assets, code, and binaries are released into the public domain when it is said to have reached its end-of-life as described in the license.
Many awesome people have made MCA what it is today. You are all properly credited on the Special Thanks page on our website.