Mup

Mup is a protocol and framework for bringing interactive UI components into LLM chat interfaces. A MUP is a simple HTML file that exposes UI and callable functions, allowing both humans (via clicks) and LLMs (via function calls) to control the component in real time. With built-in demos like slide deck generation, PDF summarization, and music composition, Mup makes agentic AI accessible and interactive — not just for developers, but any user. It is ideal for anyone wanting to build or use rich, interactive applications in LLM chat environments.