PopUI Companion App

Example Use Cases

• 1

  Create and manipulate live interactive UIs (e.g., control panels, color pickers) within a macOS environment.

• 2

  Maintain and inspect external visual state so conversation can build on shared context and UI events.

• 3

  Present or interact with real-time visualizations or turn-based interfaces (e.g., game boards, clocks, expressive faces).

Description

PopUI is a companion desktop app for macOS that integrates with Claude Desktop via MCP, allowing Claude to generate, display, and manipulate interactive UIs outside the chat. The app reads UI changes and sends events back into conversation, and conversely lets Claude push visual updates to the UI in real time. Use cases include control panels, color pickers, shared game boards, clocks, and expressive agent faces, improving collaborative UX and reducing reliance on keyboard input. Installation provides an automatic SSE/MCP proxy to connect PopUI into Claude Desktop.