AGenUI — A2UI v0.9 native renderer with shared C++ core (iOS/Android/HarmonyOS)

[niuma-zb]

Hi all, AGenUI is officially open-source! 🎉

AGenUI is the first cross-platform native renderer for A2UI v0.9, supporting iOS, Android, and HarmonyOS through a shared C++ core.

TALK IS CHEAP — let AGenUI introduce AGenUI. 🤖

The entire UI above was 100% dynamically generated by an AI Agent using our Agent Skill and rendered directly via the A2UI protocol — no manual coding, no design adjustments. Pure LLM-generated JSON, rendered natively on three platforms.

Core highlights:

• Shared C++ core + native renderers — streaming parse, tree diff, and style resolution written once; thin platform layers (UIKit / View / ArkUI) on top, ensuring cross-platform consistency
• Full protocol + extensible Catalog — all A2UI v0.9 components implemented, with a freestanding agenui_catalog.json (25 components, 14 functions) ready to use as catalogId
• Runtime extension APIs — register custom components and Function Calls at runtime; LLM addresses them by name through the Catalog
• Styles & TextStyles extensions — extended style properties for real-world rendering needs, with a companion Agent Skill that generates styled A2UI JSON

Try it in minutes:

• 🛠️ Generate A2UI JSON → Agent Skill
• 🚀 Run on your platform → Debugging with the Playground (iOS / Android / HarmonyOS Playground)
• 🌐 Learn more → Website | GitHub Repo

🙌 Join us & contribute

We're actively working on improving and polishing AGenUI. We've submitted PR #1450 to list AGenUI in the A2UI community renderers — if you've tried it or found it useful, a ⭐ on our repo or any feedback on the PR would mean a lot. Suggestions, issues, and PRs are all welcome!