Building an MCP server in Python (and connecting it to Claude Code)

The Model Context Protocol provides an open standard for connecting AI apps to external data and tools. Developers can build an MCP server using the official SDK in Python, implementing a single function as a tool via stdio for integration with Claude Code in approximately ten minutes. Meanwhile, Amandeep Singh detailed the process of rewriting a OneNote MCP server in TypeScript to address Microsoft Graph Auth scope pitfalls and silent token renewal issues after encountering 401 errors.