PACE Pattern

Appearance

License ​

PACE Pattern and PACE.js licensing information.

MIT License ​

PACE Pattern and PACE.js are released under the MIT License, one of the most permissive open-source licenses.

What this means:

✅ Free to use — Commercial and non-commercial projects ✅ Free to modify — Change the code as needed ✅ Free to distribute — Share your modifications ✅ Free to sublicense — Include in proprietary software

Requirements:

  • Include the license text in your distribution
  • Include the copyright notice
  • Provide attribution to the original authors

Full License Text ​

MIT License

Copyright (c) 2024-2025 Michael Shatny and contributors

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.

What You Can Do ​

✅ Commercial Use ​

You can use PACE.js in commercial products:

  • Build and sell PACE-powered apps
  • Include PACE.js in SaaS products
  • Offer PACE-based consulting services
  • Create proprietary plugins or extensions

No fees or royalties required.

✅ Modification ​

You can modify PACE.js:

  • Change the source code
  • Add new features
  • Fix bugs
  • Optimize performance

You can keep modifications private or share them.

✅ Distribution ​

You can distribute PACE.js:

  • Bundle with your applications
  • Host on your own CDN
  • Include in frameworks or libraries
  • Package in desktop or mobile apps

Just include the license text.

✅ Private Use ​

You can use PACE.js privately:

  • Internal company tools
  • Personal projects
  • Research and education
  • Proof-of-concept demos

No attribution required in private use.

What You Must Do ​

Include License ​

When distributing PACE.js, you must:

1. Include the license text

Either:

  • Include LICENSE file in your distribution
  • Display license in your app's "About" section
  • Link to the license on GitHub

2. Include copyright notice

Copyright (c) 2024-2025 Michael Shatny and contributors

3. Preserve existing notices

Don't remove copyright or license comments from the source code.

How to Attribute ​

In your package:

json
// package.json
{
  "dependencies": {
    "@semanticintent/pace-pattern": "^1.0.0"
  },
  "licenses": [
    {
      "type": "MIT",
      "url": "https://github.com/semanticintent/pace-pattern/blob/main/LICENSE"
    }
  ]
}

In your documentation:

markdown
This project uses PACE.js, Copyright (c) 2024-2025 Michael Shatny,
licensed under the MIT License.

In your app:

html
<!-- About page or footer -->
<p>
  Powered by <a href="https://pace.cormorantforaging.dev">PACE Pattern</a>,
  licensed under MIT License.
</p>

What You Don't Have to Do ​

❌ Share Your Code ​

You are not required to:

  • Open source your application
  • Publish your modifications
  • Share your source code
  • Contribute changes back

You can keep your code proprietary if you wish.

❌ Use the Same License ​

You can license your application however you want:

  • Proprietary/closed source
  • GPL, Apache, or other licenses
  • Custom licensing terms

PACE.js being MIT doesn't affect your license choice.

❌ Get Permission ​

You don't need to ask for permission to:

  • Use PACE.js
  • Modify PACE.js
  • Distribute PACE.js
  • Use in commercial projects

The license grants all permissions upfront.

Special Cases ​

Trademarks ​

The MIT License does not grant trademark rights.

You cannot:

  • Use "PACE Pattern" or "PACE.js" as your product name
  • Imply official endorsement or affiliation
  • Use PACE logos without permission

You can:

  • Say your app is "powered by PACE.js"
  • State compatibility with PACE Pattern
  • Reference PACE in factual descriptions

Patents ​

The MIT License includes an implicit patent grant, but:

PACE.js is provided "as is" without patent indemnification.

If you're concerned about patents:

  • Consult your legal team
  • Consider Apache 2.0 license projects
  • Reach out for commercial licensing

Warranty Disclaimer ​

PACE.js is provided without warranty:

  • No guarantee of functionality
  • No guarantee of fitness for purpose
  • No liability for damages

Use at your own risk. Always test thoroughly in your application.

Contributor Licensing ​

Your Contributions ​

When you contribute to PACE.js:

You grant the same MIT License for your contributions:

  • Your code can be used commercially
  • Your code can be modified
  • Your code can be distributed
  • No royalties or fees

You retain copyright to your contributions:

  • You can use your code elsewhere
  • You can license it differently in other projects
  • You maintain ownership

Contributor Agreement ​

By submitting a pull request, you agree:

  1. You have the right to contribute the code
  2. You license it under MIT License
  3. You grant a perpetual, irrevocable license

No separate CLA required.

Third-Party Licenses ​

PACE.js has zero runtime dependencies, so there are no third-party licenses to worry about in production.

Development Dependencies ​

Dev dependencies (testing, building) have their own licenses:

  • Vitest — MIT License
  • Vite — MIT License
  • ESLint — MIT License

See package.json for full list.

Documentation License ​

This documentation is also MIT Licensed:

  • Use examples in your projects
  • Copy and adapt for your docs
  • Share with others
  • No attribution required (but appreciated!)

Academic Use ​

For academic research and publications:

Citation is appreciated but not required.

Suggested citation:

bibtex
@misc{pace_pattern_2024,
  author       = {Michael Shatny},
  title        = {Pattern for Agentic Conversational Experience (PACE)},
  year         = {2024},
  publisher    = {Zenodo},
  version      = {1.0.1},
  doi          = {10.5281/zenodo.18049371},
  url          = {https://zenodo.org/records/18049371}
}

See Research for more citation formats.

Commercial Support ​

Need different licensing terms?

We offer:

  • Custom licensing agreements
  • Commercial support contracts
  • Priority bug fixes
  • Private feature development
  • Training and consulting

Contact: [email protected]

Questions ​

Have licensing questions?

Not legal advice. Consult a lawyer for legal guidance.

Other Projects ​

MillPond ​

License: MIT License Repository: github.com/semanticintent/millpond

This Documentation Site ​

License: MIT License Repository: github.com/semanticintent/pace-site

Summary ​

PACE.js is MIT Licensed:

✅ Free for commercial use ✅ Free to modify and distribute ✅ No fees or royalties ✅ Just include the license text

Questions? Ask us: [email protected]

Build freely. Share openly. Credit fairly. 📜