NewsAgency

A2UI v0.9: The New Standard for Portable, Framework-Agnostic Generative UI

3 dakika okuma süresi

A2UI v0.9: The New Standard for Portable, Framework-Agnostic Generative UI

APRIL 17, 2026

Generative UI allows AI agents to generate tailored UI widgets in real-time, matching the interface to the user’s specific interaction. But to move from demos to production, we need a clean separation of concerns. A2UI v0.9 is our answer; a framework-agnostic standard for declaring UI intent. It allows local or remote agents to communicate with any client application using a common language, ensuring your agent can generate your UI using your existing component catalog on any device.

A2UI is designed to work on web, mobile, and anywhere else your users are.

What’s New in A2UI v0.9

This release focuses on making it easier than ever to build agents and integrate with your existing frontends.

  • From “Standard” to “Basic”: We renamed our optional component set to ‘Basic’ to make clear that agents should use existing design systems rather than invent new components.
  • A Shared Web-Core Library: On the client side, we’ve introduced a shared web-core library which vastly simplifies any browser UI renderer. We’ve also landed the official React renderer and version-bumped all A2UI supported renderers (Flutter, Lit, Angular, and React), while carving out a dedicated spot for community renderers.
  • The Agent SDK: Building the agent side just got easier with A2UI Agent SDK. We’ve optimized the generation pipeline with new caching layers for high-performance, low-latency UI.
  • New Language Features: A2UI 0.9 adds client-defined functions (perfect for validation), client-to-server data syncing to support collaborative editing with your agent, improved error handling, and a simplified, modular schema.
  • Simplified Transports: Refined transport interfaces for connecting agents and clients. A2UI over MCP, Websockets, REST, AG UI, A2A, or whatever you want.

Adding A2UI to any python agent is now a simple pip install away:

pip install a2ui-agent-sdk

Any agent that already speaks AG-UI can drive A2UI v0.9 on day zero through AG-UI’s middleware system.

The Growing Generative UI Ecosystem

  • AG2: Built by the creators of AutoGen, created A2UIAgent as a native integration of A2UI.
  • A2A 1.0: Agent-to-Agent protocol has officially launched as a robust transport for remote agents.
  • Vercel’s json-renderer: Supports A2UI as a proof of concept.
  • Oracle’s Agent Spec: shipped Agent Spec + AG UI + A2UI support.
  • AG-UI: Support for connecting GenUI capabilities into agentic web apps, including A2UI, MCP Apps and Open Generative UI.

Get started:

npx copilotkit@latest create my-app --framework a2ui

Check out A2UI Theater and a2ui.org for docs, samples and dev guides.

The current production release is v0.9.1, a patch in the stable v0.9 family. A v1.0 release candidate specification is now available on the website.

Grafik Görünümü