A practical tutorial for building a Python MCP (Model Context Protocol) server using FastMCP, containerizing it with Docker, and connecting it to Claude Code via the terminal. The server implements a project scaffolder that generates starter directory structures for Python, Node.js, and Go projects. The guide covers the full workflow: server setup, local testing with MCP Inspector, Dockerization with key flags like PYTHONUNBUFFERED and -i, and wiring into Claude Code with a single command. Notably, it also covers real security risks often omitted from MCP tutorials, including prompt injection attacks, CVEs (CVE-2025-6514, CVE-2025-6515), path traversal vulnerabilities, and least-privilege principles for tokens and file system mounts.
Table of contents
Table of ContentsWhat You Will BuildPrerequisitesWhat is MCP (and Why Should You Care)?Why Claude Code Instead of Claude Desktop?Step 1: Build the MCP ServerStep 2: Test It LocallyStep 3: Dockerize ItStep 4: Wire It Into Claude CodeStep 5: Use ItSecurity: What the Other Tutorials Leave OutWhat to Do NextWrapping UpSort: