Building a CLI Client For Model Context Protocol Servers

The Model Context Protocol (MCP) has gained traction in the AI space, with many servers built across various domains, mostly using the Claude Desktop app as the default client. A new CLI client is being developed to demonstrate MCP's flexibility, allowing users to test MCP servers more quickly. The client will connect to the server, list available tools, and use them according to the LLM's instructions. The development process involves handling LLM messages, creating a chat loop, setting up an entry point, and running the client. Improvements are needed for streaming and multiple tool calls, but these issues have been addressed in the MCP Client CLI built at Neon. Users can try out this new client with any MCP server to see how it works or use it as a base to build their own client.