Build an MCP Server in .NET (C#) — Full Tutorial in 6 Minutes

Learn how to build a Model Context Protocol (MCP) server in .NET / C#, using the same real-world example as the Go version — an e-commerce service layer exposed to AI clients. In this video: Why MCP exists: replacing N x M one-off integrations between AI apps and tools with a single protocol The three building blocks of MCP: Tools (what the AI can do), Resources (what it can read), and Prompts (reusable workflows it can follow) A real example: an e-commerce service layer (customers, products, orders, messages) exposed as an MCP server using the official ModelContextProtocol NuGet SDK, attribute-based ([McpServerTool], [McpServerResource], [McpServerPrompt]) How the same service layer also powers a minimal-API REST server — no duplicated business logic between the two