Build a Minimal MCP Server
Beginner
Build a small Python MCP server, expose a typed tool, and inspect the connection from a real development client.
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Guide steps
Work through the guide
- 1Prepare your environmentCreate an isolated Python project and install the official MCP SDK and development tools.10 minCurrent step
- 2Create the serverDefine the smallest FastMCP server that can start over the local stdio transport.10 minNot started
- 3Add a typed toolExpose one deterministic addition tool with a narrow schema and a useful description.15 minNot started
- 4Inspect the connectionLaunch the server with MCP Inspector and verify initialization, discovery, and invocation.20 minNot started