Google Releases A2UI 1.0 Open Protocol for Native Agentic Interfaces
Google launches the stable A2UI 1.0 protocol, enabling AI agents to render interactive, native-speed screens, with early adoption by Atlassian, Bloomberg, and ByteDance.
US technology company Google released A2UI 1.0 on November 11, 2026, marking the first stable version of its open protocol for generative user interfaces. The protocol addresses the limitation of current AI agents relying primarily on text responses by allowing them to answer with interactive screens containing forms, charts, and other elements. Developers can now integrate using open-source renderer SDKs for Web, Android, and iOS, along with agent SDKs for Python, TypeScript, and Dart.
The core mechanism of A2UI separates "description" from "rendering." Agents describe what content needs to be shown via A2UI messages, while applications securely draw these contents using their own native components. This ensures that whether users access an agent within a company's own app or through third-party AI assistants supporting MCP Apps, such as Gemini or Claude, they receive low latency, high trust, and complete native fidelity. The architecture ensures sensitive data never reaches the model, and the UI streams in real-time as the agent works.
Version 1.0 introduces bidirectional function calls, allowing components like flight or reservation pickers to check availability instantly, and adds support for accessibility and extended metadata. Several major companies, including Atlassian, Alation, Bloomberg, and ByteDance, are already building products based on this protocol. For instance, Atlassian is bringing A2UI to Jira, enabling teams to interactively confirm details with AI agents directly within work items, while ByteDance's Lynx framework has released an A2UI renderer for cross-platform native display.