# Commercial Licensing

Ech0 is open source under AGPL-3.0-or-later. The AGPL is designed to keep
modified network services open: if you modify Ech0 and make it available to
users over a network, you must provide the complete corresponding source code
of your modified version under the same license terms.

A commercial license is available if you want to use Ech0 in a way that does
not release your modifications under AGPL-3.0-or-later.

Commercial licensing is intended for:

- proprietary products based on Ech0
- closed-source hosted services or SaaS offerings
- white-label deployments
- removing or replacing Ech0 attribution in commercial offerings
- private forks where modifications are not published under AGPL-3.0-or-later

For commercial licensing, contact the project maintainers through GitHub
Discussions:

https://github.com/lin-snow/Ech0/discussions

If your use is already fully compliant with AGPL-3.0-or-later, you do not need
a commercial license.