Tambo 1.0: Open-source toolkit for agents that render React components

Posted by grouchy 5 hours ago

Tambo 1.0: Open-source toolkit for agents that render React components(github.com)

Hi HN — cofounder Michael here.

We've been building Tambo for about a year, and just released our 1.0.

We make are making it easier to register React components with Zod schemas, a build an agent picks the right one and renders the right props.

We handle many of the complications with building generative user interfaces like: managing state between the user, the agent, and react component, rendering partial props, and we handle auth between your user, and MCP. We also support adding MCP servers and most of the spec.

We are 100% open-source and currently have 8k+ GitHub stars, thousands of developers, and over half-millions messages processed by our hosted service.

If you're building AI agents with generative UI, we'd like to hear from you.

40 points | 6 comments

dzogchen 6 minutes ago|

I don’t understand what this does. Who would use this and why? I need an ELIF.

Edit: Announcement was more clear https://tambo.co/blog/posts/introducing-tambo-generative-ui

Can it also generate new components?

fitzgera1d 14 minutes ago||

There’s an MCP Apps version of this that is interesting: https://creature.run

Maybe I’m misunderstanding, but isn’t generating UI just-in-time kind of risky because AI can get it wrong? Whereas you can generate/build an MCP App once that is deterministic, always returns a working result, and just as AI native.

avaer 1 hour ago||

Since I didn't see it in the Readme, how does this compare to something like Google's A2UI? Seems like it's doing more, but could e.g. Tambo work on top of A2UI protocol or is it a different beast?

My agents need a UI and I'm in the market for a good framework to land on, but as is always the case in these kinds of interfaces I strongly suspect there will be a standard inter-compatible protocol underlying it that can connect many kinds of agents to many kinds of frontends. What is your take on that?

deep_origins 2 hours ago||

Big fan of Tambo and what the team has built. Started using it on a couple side projects and being able to use the zod schemas as source of truth for llm structured outputs is handy.

danialtz 2 hours ago||

impressive!

is this the same category to CopilotKit? CPK is a AGUI proxy for similar topics, but here seems to be more emphasis on linked components?

jauntywundrkind 2 hours ago||

Is there any interest or discussion about finding a way to use these tools to work with MCP Apps?

Release: http://blog.modelcontextprotocol.io/posts/2026-01-26-mcp-app... . Announcement: http://blog.modelcontextprotocol.io/posts/2025-11-21-mcp-app... . Submission: https://news.ycombinator.com/item?id=46020502