assistant-ui is an embeddable AI chat frontend for React applications. It supports streaming, generative UI, human-in-the-loop, and other UX paradigms crucial for agentic applications. We’ve worked with Simon (the maintainer) to add a tight integration with LangGraph Cloud. This allows you to easily deploy LangGraph agents as standalone web apps or integrate them as assistants into existing applications.

Getting started: https://www.assistant-ui.com/docs/run...
Tutorial: https://www.assistant-ui.com/docs/run...
Example repo: https://github.com/Yonom/assistant-ui...
Demo: https://assistant-ui-stockbroker.verc...
Blog: blog.langchain.dev/assistant-ui/