# What License Governs the Open-SEO Project? MIT License Explained

> Discover what license governs the Open-SEO project. Learn about the permissive MIT License and its freedoms for using, modifying, and distributing the code.

- Repository: [Every App/open-seo](https://github.com/every-app/open-seo)
- Tags: licensing
- Published: 2026-08-08

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**The Open-SEO project is released under the MIT License**, a permissive open-source license that grants broad rights to use, modify, distribute, and commercialize the code with minimal restrictions.

This article explains what license governs the Open-SEO project, where to find the official license text, and what obligations you have when using code from the every-app/open-seo repository.

## Where to Find the License File

The full MIT license text is stored in the repository's top-level **`LICENSE`** file. According to the every-app/open-seo source code, this file begins with "MIT License" and contains the standard MIT terms.

You can verify the license in three key locations:

- **`LICENSE`** — The authoritative source containing the complete license text
- **[`README.md`](https://github.com/every-app/open-seo/blob/main/README.md)** — Provides project overview with links to the license
- **[`package.json`](https://github.com/every-app/open-seo/blob/main/package.json)** — Lists `"MIT"` in the license field, confirming the same information programmatically

## What the MIT License Allows

The MIT License is one of the most permissive open-source licenses available. When using Open-SEO code, you can:

- **Use** the code in any context (personal, academic, commercial)
- **Modify** the source code for your specific needs
- **Distribute** original or modified versions
- **Sublicense** or incorporate into proprietary projects

The only requirement is that you **preserve the original copyright notice and license terms** in any copies or substantial portions of the software.

## Compliance Requirements for Redistribution

When redistributing Open-SEO code or derivatives, you must:

1. Include the original copyright notice
2. Include the full license text or a reference to it
3. Not hold the authors liable for any issues

Here is a minimal example showing how to reference the MIT license when redistributing a component derived from Open-SEO:

```ts
// Example: Adding the MIT license header to a new file derived from Open-SEO
/**
 * © 2024 Every App, Inc.
 *
 * Licensed under the MIT License (see LICENSE file for details):
 * https://github.com/every-app/open-seo/blob/main/LICENSE
 */

```

If you publish a package that includes code from Open-SEO, remember to include the full `LICENSE` file in the root of your distribution.

## MIT vs. Copyleft Licenses

Unlike GPL or other copyleft licenses, the MIT License imposes **no reciprocity requirements**. You are not obligated to:

- Open-source your derivative works
- Use the same license for your own code
- Document changes you make to the original

This makes MIT-licensed projects like Open-SEO ideal for integration into both open-source and proprietary codebases.

## Summary

- The **every-app/open-seo** repository uses the **MIT License**
- License terms are found in **`LICENSE`**, referenced in **[`README.md`](https://github.com/every-app/open-seo/blob/main/README.md)**, and declared in **[`package.json`](https://github.com/every-app/open-seo/blob/main/package.json)**
- You can use, modify, and commercialize the code freely with proper attribution
- No requirement to open-source derivative works

## Frequently Asked Questions

### Is the Open-SEO license compatible with commercial projects?

Yes. The MIT License explicitly permits commercial use. You can incorporate Open-SEO into proprietary products, sell derivatives, and use it in enterprise environments without any licensing fees or revenue-sharing requirements.

### Do I need to display the MIT license in my application's UI?

No. The MIT License only requires that the copyright notice and permission notice appear in "all copies or substantial portions of the Software." This typically means including the `LICENSE` file in your source distribution or documentation—not displaying it to end users.

### Can I change the license if I fork Open-SEO?

You cannot remove or alter the MIT license terms on the original Open-SEO code you received. However, you can apply any license you choose to your own original contributions in a fork. The MIT-licensed portions must remain under MIT terms, but your additions can use a different license if properly delineated.