Claude writes well. But without access to your actual data, it's writing in a vacuum.
MCP fixes that. One server, and any compatible client (Claude, Cursor, Windsurf) can reach your tools and data without a custom connector for each one.
We wrote a step-by-step guide to building a local MCP server in Python:
— project setup with uv
— a working tool with @mcp.tool() in 30 lines
— local testing with MCP Inspector before touching Claude Desktop
— the claude_desktop_config.json file and where to find it
— the most common failures: wrong path, missing uv, vague docstrings
👉 Read the full guide here

2July 22, 2026 196 2