> For the complete documentation index, see [llms.txt](https://learn.adaptcms.com/adaptcms/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://learn.adaptcms.com/adaptcms/core-packages.md).

# Core Packages

- [Auth](https://learn.adaptcms.com/adaptcms/core-packages/auth.md)
- [Base](https://learn.adaptcms.com/adaptcms/core-packages/base.md): The base package is used as a repository of neutral functionality that may be used by many other packages.
- [Fields](https://learn.adaptcms.com/adaptcms/core-packages/fields.md)
- [Modules](https://learn.adaptcms.com/adaptcms/core-packages/modules.md)
- [Pages](https://learn.adaptcms.com/adaptcms/core-packages/pages.md)
- [Plugins](https://learn.adaptcms.com/adaptcms/core-packages/plugins.md)
- [Site Types](https://learn.adaptcms.com/adaptcms/core-packages/site-types.md)