GitHub Integration MCP Server

GitHub Integration

The GitHub MCP server provides functionality to extract diffs from Pull Requests.

Available Tools

get_diff_pr

Retrieves the diff content from a GitHub Pull Request.

Parameters:

owner: Repository owner/organization name
repo: Repository name
pr_number: Pull Request number

Returns: Object containing:

content: String containing the PR diff

Authentication

Required: Set the GitHub Personal Access Token as an environment variable:

export GITHUB_TOKEN=<your-github-token>

The token needs at least repo scope permissions to access private repositories. For public repositories, a token with public_repo scope is sufficient.

Error Handling

The server implements standard error handling:

Missing/invalid token returns ErrorCode.AuthenticationError
Invalid repository details return ErrorCode.InvalidParams
Non-existent PR returns ErrorCode.NotFound
Failed diff fetches return formatted error messages
Graceful shutdown on SIGINT

Technical Details

Built using the Highlight AI MCP SDK
Uses GitHub REST API v3
Input validation via Zod
Runs as a stdio-based MCP server
Supports Node.js >=18.0.0

Limitations

Rate limits apply based on GitHub API restrictions
Large diffs may be truncated according to GitHub API limits
Token requires appropriate repository access permissions

This server cannot be installed

security - not tested

license - not found

quality - not tested

remote-capable server

The server can be hosted and run remotely because it primarily relies on remote services or has no dependency on the local environment.

Extracts diffs from GitHub Pull Requests, allowing users to retrieve and analyze changes between branches in a repository.

Related Resources

Reddit Discussion about this server

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