Your First FastMCP Server, Authored From Scratch

Build a real Python MCP server with FastMCP: define a tool, run it over stdio, connect it to a client, and watch the agent call it. Establish the local dev loop and the seed server that grows into the capstone.

16 min read

What You'll Learn

Install FastMCP and scaffold a minimal but real MCP server in Python that runs over stdio.
Define a single tool with a typed signature and a clear docstring, and explain why those two things are what the model actually reads.
Connect your server to a client (Claude Code or Claude Desktop) and confirm the agent discovers and calls the tool.
Establish a tight local dev loop (edit, restart, re-test) so iterating on a server feels fast instead of mysterious.

Unlock All Free Modules

Enter your email to continue learning. You'll get access to all all modules across every track, completely free.

All modules freeNo credit card required

No spam, unsubscribe anytime. Privacy Policy