A2UI Launches with full AG-UI Support

A2UI Launch — Full Compatibility

CopilotKit has been working closely with Google on A2A and A2UI integrations, and is proud to be a launch partner for A2UI.

What is A2UI?

A2UI (Agent-to-UI) is Google's declarative, LLM-friendly generative UI specification. It defines what to render and how to structure agent responses visually — enabling agents to produce rich, interactive UI components that can be rendered across different platforms and frameworks.

CopilotKit provides zero-day support for A2UI, meaning you can start using A2UI widgets in your CopilotKit-powered applications immediately.

• Generative UI Specs Overview
• More about A2UI
• A2A Protocol

Get Started

Use the A2UI Quickstart to see A2UI in action with CopilotKit!

A2UI Composer

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Check out the A2UI Composer (built by CopilotKit engineers), which you can use to:

• Create custom A2UI widgets visually
• Browse and find existing widgets
• Test widgets before integrating them into your app

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