About

A2UI (Agent-to-User Interface) is an open-source standard and set of libraries from Google designed for generative AI agents to create rich, interactive UIs. It uses a declarative JSON format to describe UI intent, allowing agents to 'speak UI' safely without executing arbitrary code. The client application renders these descriptions using its native component library (Flutter, Lit, etc.). It emphasizes security, framework-agnostic portability, and is optimized for incremental updates by LLMs, making it ideal for dynamic data collection and adaptive agent workflows.

Features

• Declarative UI specification
• Security-first sandboxed rendering
• LLM-friendly incremental updates
• Framework-agnostic architecture
• Extensible component registry

Supported Platforms