assistant-ui

assistant-ui is a TypeScript and React UI library for building conversational AI interfaces that ships with reusable, customizable chat components and optional managed backend services. It is built on shadcn/ui and Tailwind and is offered as an open-source MIT library alongside a hosted backend (assistant-cloud) for production usage. The project includes examples, documentation, and a community on GitHub and Discord to help teams integrate chat UX quickly.

• Customizable UI components — Prebuilt TypeScript/React chat components that you can style and extend to match your app's design system.
• Bring-your-own-backend — Use the library with any AI backend or host your own conversation data and API stack.
• Managed backend (assistant-cloud) — Optional hosted service that provides chat history, thread management, and MAU-based billing for production apps.
• Open source (MIT) — UI library is freely available under the MIT license for modification and self-hosting.
• Examples and documentation — Step-by-step guides and example apps to get started quickly in a React project.

To get started, install the library in your React/TypeScript app, follow the getting-started documentation to wire your preferred AI backend (or sign up for assistant-cloud), and customize components and styles to fit your product.