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Agent-to-UI Protocol (A2UI)

by Google
A declarative, LLM-friendly generative UI specification that enables agents to respond with dynamic UI components rather than just text. A2UI is a JSONL-based, streaming-capable spec designed for platform-agnostic rendering, allowing agents to deliver interactive widgets alongside conversational responses. Google-backed.
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📄 Specification

Category ⚙️ Harness
Versiondraft
MaintainerGoogle
Status draft

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Discovered May 20, 2026
Last updated May 20, 2026
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