License Terms

Last updated: January 9, 2024

Important Notice

MTVCraft is licensed under the Apache License 2.0, which is a permissive open-source license. This page explains what this means for users and developers.

1. Overview of Apache License 2.0

The Apache License 2.0 is one of the most popular open-source licenses. It allows users to:

Use the software for any purpose (commercial or non-commercial)
Distribute the software
Modify the software
Distribute modified versions of the software
Sublicense the software
Use patent claims of contributors to the code

2. Key Permissions

✅ You CAN:

Commercial Use: Use MTVCraft in commercial applications and services
Modification: Modify the source code to suit your needs
Distribution: Share the original or modified software with others
Patent Use: Use any patents that contributors have on the code
Private Use: Use the software for private purposes without sharing

3. Key Conditions

📋 You MUST:

Include License: Include a copy of the Apache 2.0 license in any distribution
State Changes: Clearly state any changes made to the original code
Include Notice: Include the NOTICE file if one exists in the original distribution
Preserve Copyright: Keep all copyright notices intact

4. Limitations

⚠️ The license does NOT:

Provide Warranty: The software is provided "as is" without any warranty
Provide Liability: Contributors are not liable for any damages
Grant Trademark Rights: Does not grant permission to use trade names, trademarks, or service marks

5. How to Comply with the License

When using MTVCraft in your projects, follow these steps to comply with the Apache 2.0 license:

5.1 For Unmodified Use

Include the Apache 2.0 license text
Include the NOTICE file (if present)
Preserve all copyright headers

5.2 For Modified Versions

All requirements for unmodified use
Clearly state that you have made changes
You may add your own copyright statement
You may provide additional or different license terms for your modifications

6. Example Attribution

Here's an example of proper attribution when using MTVCraft:

This project uses MTVCraft (https://github.com/baaivision/MTVCraft)
Copyright (c) 2024 BAAI (Beijing Academy of Artificial Intelligence)
Licensed under the Apache License, Version 2.0

Modifications:
- [List your modifications here if any]
        

7. Patent Grant

The Apache 2.0 license includes an express patent grant from contributors. This means:

Contributors grant you a license to any patents they own that would be infringed by their contribution
This patent license is automatically terminated if you initiate patent litigation against any entity regarding the software

8. Contribution License

If you contribute to MTVCraft:

You grant a perpetual, worldwide, non-exclusive, royalty-free license to your contributions
You represent that you have the right to grant this license
Your contributions will be distributed under the same Apache 2.0 license

9. Commercial Use Guidelines

MTVCraft can be used in commercial projects. Here are some guidelines:

SaaS Applications: You can use MTVCraft as part of a paid service
Proprietary Software: You can include MTVCraft in proprietary software
Modified Versions: You can sell modified versions while complying with the license
Support Services: You can offer paid support for MTVCraft implementations

10. Website Content License

Please note that the content on this website (mtvcraft.online) is separate from the MTVCraft software license:

MTVCraft software and documentation: Apache License 2.0
Third-party content: Subject to their respective licenses

11. Frequently Asked Questions

Can I use MTVCraft in my commercial product?

Yes, the Apache 2.0 license allows commercial use without any fees or royalties.

Do I need to open-source my entire application if I use MTVCraft?

No, the Apache 2.0 license is not copyleft. You can keep your application proprietary.

Can I modify MTVCraft and keep my modifications private?

Yes, you are not required to share your modifications unless you distribute the modified software.

What if I want to use a different license for my fork?

You must still include the Apache 2.0 license for the original code, but you can add additional licenses for your modifications.

12. Additional Resources

13. Disclaimer

This page provides general information about the Apache 2.0 license as it applies to MTVCraft. It is not legal advice. For specific legal questions about using MTVCraft in your project, please consult with a qualified attorney.

14. Contact

For questions about the MTVCraft license:

Check the official repository
Open an issue on GitHub for clarification
Contact BAAI through their official channels