What are the main components of an MCP client?

An MCP client typically consists of two main pieces. The first is your custom MCP client class, which you write to make using the underlying session easier and to integrate cleanly with your application. The second is the client session itself, which is the actual connection to the MCP server and is provided by the MCP Python SDK. The client session requires careful resource management. You need to properly clean up the connection when you are done so you do not leak resources. That is why developers wrap the session inside a custom class that handles the cleanup automatically through context managers.