Show HN: Joey – MCP client that runs on your phone (benkaiser.github.io)

A new mobile application, Joey, has been launched that enables users to connect to a wide array of AI models through the OpenRouter platform, utilizing the Model Context Protocol (MCP). This innovative tool not only functions as a native chat app but also integrates advanced capabilities like tool calling, sampling, and OAuth, allowing for seamless model switching mid-conversation and real-time cost tracking of usage. Joey automatically facilitates tasks by executing MCP tools and feeding results back into the language models until tasks are completed, enhancing the interactive experience. The significance of Joey lies in its ability to bring powerful AI functionalities directly to mobile devices, empowering users to access and leverage state-of-the-art models such as GPT-4o, Claude, and Gemini without needing backend servers or data analytics. Built with Flutter, Joey boasts rich content rendering capabilities, including diagrams and code blocks, alongside privacy features, as it stores all data locally on the user's device. This open-source application is not only user-friendly and free but also marks a step forward in making AI more accessible and versatile, catering to both casual users and developers alike.