MIT or Apache-2.0,
your pick

The radiochron library, the radiochron-mcp server, the desktop app and this website are dual-licensed under either of

• Apache License, Version 2.0 — adds an explicit patent grant from contributors and explicitly reserves the RadioChron name and marks
• MIT license — maximal simplicity and GPLv2 compatibility

at your option — the same convention the Rust ecosystem itself uses. Pick whichever suits your project; you never need both. Contributions are accepted under the same dual terms.

The MIT text

MIT License

Copyright (c) 2026 Sergii Ziborov

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

The Apache-2.0 text is long; read it at apache.org or in the repository.