GitHub MCP Server: Connect Claude to Repos, Issues & Pull Requests

What is the GitHub MCP server?

The GitHub MCP server connects Claude to the GitHub API through the Model Context Protocol. It lets your AI assistant read repository data, interact with issues and pull requests, search across codebases, and perform common GitHub operations, all through natural language.

MCP is an open standard from Anthropic that provides a structured way for AI models to access external tools and data. The GitHub MCP server implements this protocol to expose GitHub's API in a way Claude can understand and use effectively.

Once connected, you can ask Claude things like "what are the open bugs in our main repo?" or "summarize the changes in PR #247" and it pulls the information directly from GitHub. No browser tabs, no API scripts, no context switching.

What it can do

■Read and create issues - List open issues, filter by label or assignee, read full issue threads, and create new issues with labels and assignments.
■Review pull requests - View PR diffs, read review comments, check approval status, and understand what changed across files.
■Search code across repositories - Find functions, classes, configuration patterns, or any string across your entire codebase or organization.
■Manage branches - List branches, compare branches, and see commit history between refs.
■Check CI/CD status - View workflow run results, check which tests passed or failed, and read build logs.
■Read file contents - View any file in your repository at any branch or commit, including README files, configs, and source code.
■List and manage releases - View release history, read changelogs, and see tagged versions.

Setup guide

1. Create a GitHub personal access token

Go to GitHub Settings > Developer Settings > Personal Access Tokens > Fine-grained tokens. Create a new token with repository access scoped to the repos you want Claude to access. Grant read permissions for contents, issues, pull requests, and actions.

2. Install the GitHub MCP server

The official GitHub MCP server is available as an npm package:

npm install -g @modelcontextprotocol/server-github

3. Configure Claude Desktop

Add the GitHub server to your Claude Desktop configuration file:

{
  "mcpServers": {
    "github": {
      "command": "npx",
      "args": ["-y", "@modelcontextprotocol/server-github"],
      "env": {
        "GITHUB_PERSONAL_ACCESS_TOKEN": "github_pat_your_token_here"
      }
    }
  }
}

Config file location on macOS: ~/Library/Application Support/Claude/claude_desktop_config.json

On Windows: %APPDATA%\Claude\claude_desktop_config.json

4. Restart and test

Restart Claude Desktop. The GitHub tools will appear in the tools menu. Try asking: "List the open issues in [your-repo]" to verify the connection.

Use cases

PR review preparation

Before reviewing a large pull request, ask Claude to summarize the changes, identify which files were modified, flag potential issues, and explain the intent behind the diff. You get a head start before reading a single line of code.

Bug triage and prioritization

Ask Claude to pull all open bug reports, group them by component or severity, and identify which ones have been open the longest. It can cross-reference related issues and suggest which bugs to address first based on impact.

Codebase exploration

New to a project? Ask Claude to find where authentication is handled, how the database layer is structured, or where a specific API endpoint is defined. It searches across files and explains what it finds.

Release notes generation

Point Claude at the commits between two tags and ask it to generate release notes. It reads the commit messages, PR descriptions, and linked issues to produce a changelog that actually makes sense to your users.

Limitations

■Cannot push code or merge pull requests. It reads and creates, but destructive write operations require manual confirmation in GitHub.
■Large repositories with thousands of issues or files may hit GitHub API rate limits (5,000 requests per hour for authenticated users).
■Binary files (images, compiled assets) cannot be read or interpreted through the MCP server.
■GitHub Enterprise Server (self-hosted) requires additional configuration for API endpoint routing.
■Access is limited to repositories and permissions granted by your personal access token.

Frequently asked questions

Can Claude access private repositories?

Yes, as long as your personal access token has permission to access them. Use fine-grained tokens to control exactly which repositories Claude can see.

Will this work with GitHub Enterprise?

GitHub Enterprise Cloud works out of the box. For GitHub Enterprise Server (self-hosted), you need to configure the MCP server with your custom API endpoint URL.

Is my code sent to Anthropic?

When Claude reads a file through the MCP server, the file contents are included in your conversation context. Anthropic's data retention policies apply to conversation data. If this is a concern, use the MCP server only with non-sensitive repositories, or use Claude's enterprise tier which offers zero data retention.

Can I use this with GitHub Actions?

Claude can read workflow run results and check statuses, but it cannot trigger or modify GitHub Actions workflows through the MCP server. You can, however, ask Claude to help you write or debug workflow YAML files.

GitHub MCP Server