MCP is the new plumbing — and it’s already shipping in a 200-line library

FastMCP is a Prefect library that wraps the Model Context Protocol so you don’t have to. It lets you expose functions as MCP tools — the kind the big LLMs call to pull data, check a database, or talk to an API — and it handles the HTTP transport, tool registration, and error reporting in one clean interface. The whole thing is 200 lines of Python. If you've been wrestling with the spec manually, this is the shortcut.

The Model Context Protocol is becoming the standard way LLMs discover and call tools at runtime. Instead of hard-coding prompts and API calls, you register a tool and the model asks for it. FastMCP's advantage is that it's opinionated the way you need it to be: you decorate a function with a docstring, and the library figures out the schema and the response format. No scaffolding. No boilerplate.

If you're building a side project that talks to an LLM — a chatbot, a report generator, anything that needs live data — this is the layer you want between the model and your backend. The community is moving this fast that what you hand-roll today will be a liability tomorrow.

Why this matters for us: The people who get ahead are the ones who ship the plumbing before the rest of the comunidad is still reading the spec.