Castella A2UI Integration

A2UI (Agent-to-User Interface) enables AI agents to generate rich, interactive UIs by outputting JSON component descriptions. Castella renders these natively across desktop, web, and terminal platforms.

When to use: "render A2UI JSON", "A2UI component", "A2UIRenderer", "A2UI data binding", "A2UI streaming", "connect to A2UI agent", "updateDataModel", "A2UIClient"

Quick Start

Render A2UI JSON to a Castella widget:

from castella import App
from castella.a2ui import A2UIRenderer, A2UIComponent
from castella.frame import Frame

Installs

Source

smithery.ai/ski…lla-a2ui

First Seen

Mar 23, 2026