From the course: Mastering Model Context Protocol (MCP)

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MCP components

MCP components

- [Instructor] Let's break down the main rules in the MCP setup. The host is what you interact with. Now, in the examples that we've seen, this has been Claude Desktop, and it's responsible for the user interface, making sure permissions are handled properly, and getting things rolling by connecting to MCP servers using clients. It also keeps track of all the conversations happening between you, the language model, and any tools you're using. And ultimately, the host pulls everything together and shows you the final result in a way that makes sense. Now, behind the scenes, the client quietly takes care of communication. It forms a one-to-one link with a server and knows how to speak the MCP protocol. Now, whenever the host needs something from a server, the client translates that into a format the server understands. And then finally, you've got the server, and this is where the real action happens. The server provides services or data that the AI model needs. It makes existing tools…

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