# MCP PHP SDK

> [!IMPORTANT]
> Currently we are still in the process of merging [Symfony's MCP SDK](https://github.com/symfony/mcp-sdk) and
> [PHP-MCP](https://github.com/php-mcp) components. Not all code paths are fully tested, complete or this package
> may contain duplicate functionality or dead code.
> If you want to help us stabilize the SDK, please see the
> [issue tracker](https://github.com/modelcontextprotocol/php-sdk/issues).

Low-level SDK implementation of the Model Context Protocol (MCP) in PHP.

This project is a collaboration between the [PHP Foundation](https://thephp.foundation/) and the
[Symfony project](https://symfony.com/). It adopts development practices and standards from the Symfony project,
including [Coding Standards](https://symfony.com/doc/current/contributing/code/standards.html) and the
[Backward Compatibility Promise](https://symfony.com/doc/current/contributing/code/bc.html).

Until the first major release, this SDK is considered
[experimental](https://symfony.com/doc/current/contributing/code/experimental.html).

## Installation

```bash
composer require mcp/sdk
```

## Documentation

- [SDK documentation](doc/index.rst)
- [Model Context Protocol documentation](https://modelcontextprotocol.io)
- [Model Context Protocol specification](https://spec.modelcontextprotocol.io)
- [Officially supported servers](https://github.com/modelcontextprotocol/servers)

## Contributing

We are passionate about supporting contributors of all levels of experience and would love to see you get involved in
the project. See the [contributing guide](CONTRIBUTING.md) to get started before you
[report issues](https://github.com/modelcontextprotocol/php-sdk/issues) and
[send pull requests](https://github.com/modelcontextprotocol/php-sdk/pulls).

## License

This project is licensed under the MIT License - see the LICENSE file for details.