The Generative UI Hackathon (A2UI, AG-UI, MCP Apps)

Intro Video [Please Watch]: https://www.youtube.com/watch?v=6831vjw7Tao

All UI will be AI.

AI is changing how we interact with technology, and the Generative UI stack is emerging.

In this hackathon we will build cutting-edge Generative UI applications using Google’s A2U, CopilotKit’s AG-UI and MCP Apps.

Builders will be provided with a (optional) starter repo that connects this stack together, and includes all the relevant MCP servers and Agent skills, so you can focus on building and not set up.

It will also be kicked off by a talk from the creators of A2UI, AG-UI, MCP Apps, Manufact and LangChain.

They will walk through the Generative UI spectrum and help you think through what projects you can build.

This will be a part of a GLOBAL Hackathon, happening simultaneously across 18 cities on 4 different continents.

If you are interested in the future of UI and Generative Interfaces, this will be the place to be. Registration is limited. Only proven builders will be accepted.

The winning team will receive Mac Minis
The runner up team will receive Meta Ray Ban Glasses for their whole team.

Format (Virtual)

• 12:00 AM (PT) - Hackathon opens globally. Repo live, tracks + starter kits available
• Anytime - Build. Solo or team up asynchronously. Ship something real
• Throughout the day - Drop progress, questions, and demos in the global channel
• Optional check-ins - Ad hoc demos, feedback loops, and builder-to-builder support
• 11:59 PM (PT) - Submissions close. Projects locked on the platform.

Global Sponsors

Google DeepMind

Google DeepMind is the AI research lab behind Gemini and many of the open protocols defining how agents talk to interfaces, including A2UI - the open-source protocol letting agents send fully interactive UI components instead of plain text. Credits for participants distributed via the starter kit on event day.

CopilotKit

CopilotKit is the Agentic Frontend Stack and the company behind the AG-UI Protocol.

Their React and Angular SDKs allow developers to build rich fullstack agentic applications with Generative UI that can leverage AG-UI, A2UI and MCP Apps.

They have 40k+ GitHub Stars Across their repos and their AG-UI protocol has been adopted by Google, AWS, Microsoft, Oracle, LangChain, Mastra, PydanticAI and more!

Starter templates, framework access, and full docs at docs.copilotkit.ai.

Manufact

Manufact is the platform behind mcp-use, the fullstack open-source framework developers use to build MCP Apps for ChatGPT and Claude and MCP Servers for AI agents. The SDK ships in both TypeScript and Python with auto-discovery for interactive widgets, hot reload, and a built-in Inspector for testing. Manufact Cloud handles deployment, observability, and branch previews - push to GitHub and ship to production in under 60 seconds. Starter templates, the create-mcp-use-app scaffold, and full docs at github.com/mcp-use/mcp-use

Langchain

LangChain is the leading framework for building production-ready LLM applications-powering everything from simple chains to complex, stateful agents.

From orchestration and tool-calling to retrieval and memory, LangChain provides the primitives teams use to move beyond demos and into real systems. If you’re working on agents, RAG pipelines, or multi-step reasoning workflows, you’ve likely touched LangChain somewhere in your stack.

Daytona

Daytona is building the infrastructure layer for running code dynamically-ephemeral environments that spin up instantly, execute reliably, and disappear when you’re done.

If you’re working with agents that write and run code, sandboxing untrusted execution, or scaling developer workflows beyond local machines, Daytona is the kind of primitive you end up needing.