A step-by-step tutorial for building your first MCP (Model Context Protocol) server using TypeScript and connecting it to Claude Desktop. Using a simple calculator app as the example, it walks through project setup, installing the MCP SDK, defining tools with Zod schemas, writing handler logic, and configuring Claude Desktop to recognize the server. The goal is to teach the core MCP fundamentals so developers can later apply them to more complex, data-rich applications.
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