The MCP Chat Desktop App is a cross‑platform desktop application that uses the Model Context Protocol (MCP) to connect with diverse Large Language Models. Built on Electron, it runs on Linux, macOS, and Windows, offering a clean, minimal UI to illustrate MCP concepts and to quickly test multiple MCP-backed servers and LLM configurations. The project emphasizes a lightweight codebase designed for education and experimentation, with dynamic LLM configuration support that works with all OpenAI SDK‑supported models, allowing users to switch backends via manual settings or presets. It also enables multi‑client management, so you can configure and connect to several MCP servers from a single interface. The UI is designed to be adaptable for web use, preserving interaction logic across desktop and web environments. The repository provides example configuration templates (gtp-api.json, qwen-api.json, deepinfra.json) illustrating how to route requests to OpenAI‑compatible endpoints or alternative providers. To run, modify src/main/config.json as needed, install dependencies, and run npm start to launch the app.