Where does the MCP client fit into your application's request flow?

The MCP client is what enables your application code to interact with the MCP server at two key points in the request flow. First, your code uses the client to get a list of available tools to send to Claude when forming a request. Second, when Claude decides to call a tool, your code uses the client again to actually execute that tool against the MCP server. Everything else, like managing the conversation with Claude, presenting results to the user, and handling user input, lives in your own application. The client is just the bridge to the MCP side.