An LLM that can only talk is a very expensive parrot. The Model Context Protocol (MCP) is how you give it hands: letting models discover and call your tools, data and services through one civilised interface instead of the usual tangle of bespoke glue and quiet despair.
A hands-on tour for .NET developers: what MCP actually is, how clients and servers really talk, how to build your own server to expose your systems safely, and the security questions you must answer before handing a probability engine the keys to anything that matters.
We build one live and break it on purpose, because that is both more fun and considerably more educational. You'll leave able to make your existing systems available to AI. Deliberately, securely, and without rewriting the world.