> For the complete documentation index, see [llms.txt](https://documentation.opencats.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://documentation.opencats.org/introduction-and-overview/licensing.md).

# Licensing

OpenCATS licensing should mirror the application repository `LICENSE.md`.

The application is available under two licenses:

1. OpenCATS code is under the **Mozilla Public License 2.0**.
2. Original code from the **CATS Project** circa 2007 is under the **CATS Public License Version 1.1a**, a modified Mozilla Public License.

For the full license text, see the `LICENSE.md` file in the OpenCATS application repository:

<https://github.com/opencats/OpenCATS/blob/master/LICENSE.md>