Isometric illustration of developer workspace with TypeScript code editor, 100% code coverage badges, 2-hour stopwatch, and MCP server architecture nodes showing AI building tools for AI

Building an MCP Server in 2 Hours

Built a fully functional Codecov MCP server in 2 hours using Claude Code to extend Claude Code itself. From zero to working server with authentication, API integration, and real-world lessons learned.

December 20, 2025 · 9 min · 1716 words ·  By Eric Gulatee | AI-assisted