Author(s): Bessie Delight Kekeli
Originally published on Towards AI.
Part 6 of the LangGraph Mental Model series, a ground-up introduction to the Model Context Protocol, building toward full integration with everything from Parts 1–6
For other parts of the series : Part 0 , Part 1 , Part 2 , Part 3 , Part 4 , Part 5,
What this article assumes: You’re comfortable with the seven-module LangGraph structure and the idea of a @tool-decorated function (Part 1, Module 3). That's the only prerequisite. MCP is a new piece of infrastructure, not a new way of thinking about graphs, so we start from zero on MCP itself, and only reconnect to LangGraph once the concept is solid.













