Build Custom GitHub MCP Server for Repo Management

This n8n workflow enables you to build your own GitHub MCP (Model Context Protocol) server, customized to your organization's specific repositories, issues, and pull requests. Unlike the official GitHub MCP server, this implementation gives you precise control over user access and functionality, enhancing security and simplicity. It uses an MCP server trigger connected to three custom workflow tools: Get Latest Issues, Get Issue Comments, and Create Issue Comment, each backed by preconfigured GitHub nodes.

The workflow operates by having the MCP trigger receive requests from compatible clients, routing them to the appropriate custom tools. For instance, to view comments or add new ones, the agent first calls Get Latest Issues to obtain the issue number. This modular design allows easy extension for additional GitHub operations like pull requests or repository management.

Benefits include tailored permissions, reduced feature bloat, and integration with AI agents via MCP clients like Claude Desktop. Use cases span development teams needing automated issue tracking, secure commenting without full repo access, or AI-assisted GitHub interactions. It's ideal for organizations wanting a lightweight, n8n-hosted alternative to official servers.

To deploy, add your GitHub credentials, target a repository, and connect an MCP client per n8n docs. Test with queries like 'Get latest issues about MCP' or 'Comment on Issue 12345'. Based on official MCP reference: https://github.com/modelcontextprotocol/servers/tree/main/src/github.