Git PR MCP server

This server implements the Model Context Protocol (MCP) for Git and Pull Request operations, allowing you to manage repositories and automate PR workflows through a consistent interface. It runs in Server-Sent Events (SSE) mode by default and provides tools for both standard Git operations and GitHub PR automation.

Installation

To install the Git PR MCP server:

git clone <repository-url>
cd git-pr-mcp
uv sync

Server Configuration

The server runs in SSE mode on 0.0.0.0:9999 by default and can be configured using environment variables. Create a .env file with the following settings:

FASTMCP_HOST=0.0.0.0
FASTMCP_PORT=9999
GITHUB_TOKEN=your_github_token

The GITHUB_TOKEN is required for GitHub-specific operations like creating pull requests.

Starting the Server

Start the server using one of these commands:

# Run with defaults
uv run python main.py

# Or run the server module directly
uv run python -m src.git_pr_mcp.server

Once running, you can access the MCP server at http://localhost:9999/sse.

Available Tools

Core Git Operations

These tools work on a specified repository path:

• get_git_status: Retrieves the current git status of a repository
• list_branches: Lists all branches in the repository (with optional remote branches)
• create_pr_summary: Creates a summary for a pull request based on git diff
• get_commit_history: Gets commit history for a branch
• get_git_diff: Gets git diff between commits, branches, or working directory

Automated PR Workflow

These tools operate on an internally managed "active" repository:

• clone_repository: Clones a GitHub repository, making it the active repository
• create_git_branch: Creates a new branch in the active repository
• write_file_in_repo: Creates or modifies files within the active repository
• git_commit_changes: Stages all changes and commits them
• git_push_branch: Pushes a specified branch to its remote origin
• create_github_pr: Creates a pull request on GitHub (requires GITHUB_TOKEN)

State Management

The server maintains the state of the currently "active" cloned repository in an active_repo_state.json file, which provides persistence across server restarts. This includes the repository path, URL, owner, and name information.

How to install this MCP server

For Claude Code

To add this MCP server to Claude Code, run this command in your terminal:

claude mcp add-json "git-pr" '{"command":"python","args":["-m","src.git_pr_mcp.server"]}'

See the official Claude Code MCP documentation for more details.

For Cursor

There are two ways to add an MCP server to Cursor. The most common way is to add the server globally in the ~/.cursor/mcp.json file so that it is available in all of your projects.

If you only need the server in a single project, you can add it to the project instead by creating or adding it to the .cursor/mcp.json file.

Adding an MCP server to Cursor globally

To add a global MCP server go to Cursor Settings > Tools & Integrations and click "New MCP Server".

When you click that button the ~/.cursor/mcp.json file will be opened and you can add your server like this:

{
    "mcpServers": {
        "git-pr": {
            "command": "python",
            "args": [
                "-m",
                "src.git_pr_mcp.server"
            ]
        }
    }
}

Adding an MCP server to a project

To add an MCP server to a project you can create a new .cursor/mcp.json file or add it to the existing one. This will look exactly the same as the global MCP server example above.

How to use the MCP server

Once the server is installed, you might need to head back to Settings > MCP and click the refresh button.

The Cursor agent will then be able to see the available tools the added MCP server has available and will call them when it needs to.

You can also explicitly ask the agent to use the tool by mentioning the tool name and describing what the function does.

For Claude Desktop

To add this MCP server to Claude Desktop:

1. Find your configuration file:

• macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
• Windows: %APPDATA%\Claude\claude_desktop_config.json
• Linux: ~/.config/Claude/claude_desktop_config.json

2. Add this to your configuration file:

{
    "mcpServers": {
        "git-pr": {
            "command": "python",
            "args": [
                "-m",
                "src.git_pr_mcp.server"
            ]
        }
    }
}

3. Restart Claude Desktop for the changes to take effect