Omni-IRAn open standard for generative UI

AI models write short, flat lines of intent. Your app checks every line and draws it with its own trusted components. No HTML, no CSS, no code from the model, and no action it wasn't allowed.

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Read the spec

Streams line by line

Each line is parsed and drawn as soon as it arrives, so a screen starts to appear after about 30 tokens. Parts still on their way show placeholders.

Governed actions

A button that changes data stays disabled until an McpMutation names a tool from your registry, and its params are checked by the parser, the client and the server.

One spec, three platforms

TypeScript, Swift and Kotlin parsers pass the same 85 conformance cases. Native renderers for React, SwiftUI and Jetpack Compose.

Data, not pixels

The model sends titles, labels and values. Colours, fonts, spacing and animation always belong to your app.

root = Card([title, amount, pay])
title = Heading("Confirm payment")
amount = Text(42.50, format="currency", currency="USD")
pay = Button("Pay now", action="pay")
payM = McpMutation(pay, tool="payments.confirm", params={amount: 42.50})