Guide8 min read
Introduction to A2UI: The Future of Agent-Generated UI
What is A2UI and why it matters for AI agents. Learn about Google's open protocol for secure, native UI generation.
Protocol v0.8 Preview
The A2UI Resource Hub
Learn Google's Agent-to-User Interface protocol — the open standard for AI agents to generate native UI across platforms.
What is A2UI?
A2UI (Agent-to-User Interface) is Google's open protocol for AI agents to generate secure, native UI across platforms.
Security First
Declarative JSON format instead of executable code. Agents can only request pre-approved components from the client's catalog.
LLM Friendly
Flat adjacency-list structure with streaming JSONL support for incremental UI generation by language models.
Cross Platform
Same JSON message renders natively on Web, iOS, Android, and Desktop. Write once, render anywhere.
Featured Articles
Start learning A2UI with our guides and tutorials.
Tutorial12 min read
Getting Started with A2UI: Your First Component
Step-by-step tutorial to create your first A2UI component. Understand the JSON structure and rendering process.
Analysis10 min read
A2UI vs MCP Apps: Choosing the Right Protocol
Compare A2UI and MCP Apps to choose the right protocol for your agent UI needs. Understand the trade-offs and use cases.