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Practical MCP with FastMCP & LangChain

Engineering the Agentic Experience

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Your First MCP Server

In this chapter, we will build a simple MCP server that provides basic tools to the model. This will be our first step in understanding how to implement an MCP server and how it communicates with the client using the JSON-RPC protocol. We will also test our server using a client that we will build.

The official MCP library provides SDKs in multiple programming languages to help you build your MCP server and client more easily.

Some of these SDKs include:

Practical MCP with FastMCP & LangChain

Engineering the Agentic Experience

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