Vercel AI SDK

Integration overview

How it connects to OpenUI

Return the UIMessage SSE produced by streamText().toUIMessageStreamResponse(), then use vercelAIAdapter() with vercelAIMessageFormat in AgentInterface. OpenUI validates AI SDK v6 or v7 chunks and maps streamed text, tool inputs, tool results, multi-step lifecycles, and errors into AG-UI events.

The integration path

1. 1

   Describe the interface

   Generate a component prompt from the same OpenUI library that will render the response.

2. 2

   Stream structured output

   Let Vercel AI SDK own its part of the stack while OpenUI Lang travels as incremental text or mapped agent events.

3. 3

   Render and interact

   Parse the stream with the matching OpenUI runtime, render real components, and return validated actions to the application.

What stays consistent