Using LLMs and MCP in .NET

This article explains how to integrate Model Context Protocol (MCP) tools with large language models (LLMs) in a .NET environment. It covers setting up an MCP host using ASP.NET Core, registering tools with semantics like title and description, and using HTTP transport for communication. The tutorial demonstrates creating a simple web application with the ModelContextProtocol NuGet package, defining tools such as a day-of-week function, and enabling LLMs to invoke these tools via JSON-RPC 2.0. It is a practical starting point for developers looking to connect LLMs to real-world systems like databases or APIs.