Developer Builds Custom MCP Server to Auto-Publish Blog Posts via Claude AI

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A developer built a custom Model Context Protocol (MCP) server that allows Claude AI to read draft blog posts from a local machine and publish them directly to Dev.to without manual interaction. The project involved two MCP servers: an official filesystem server and a custom-built server wrapping the Dev.to API. During development, the author encountered several debugging challenges, including a PATH issue with the uv package manager, a Python version mismatch, and a rogue PyPI package squatting the name 'mcp' that installed instead of the legitimate MCP SDK. A misconfigured JSON structure in Claude Desktop's config file also silently prevented servers from loading, requiring careful attention to nesting. The project serves as a practical demonstration of how MCP enables AI models to perform real-world actions — such as file access and API calls — beyond simply generating text.

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