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Assistant Ui
assistant - ui is an open - source TypeScript/React library for quickly building production - grade AI chat interfaces, providing composable UI components, streaming responses, accessibility, etc., and supporting multiple AI backends and models.
rating : 5 points
downloads : 6.2K
What is Assistant UI?
Assistant UI is an open - source UI library specifically designed for React applications, aiming to help developers quickly build feature - rich and user - friendly AI chat interfaces. It handles common complex issues in chat applications, such as streaming, auto - scrolling, accessibility, and real - time updates, allowing developers to focus on business logic.How to use Assistant UI?
Using Assistant UI is very simple. You can quickly create a new project through the command - line tool or initialize it in an existing project. It provides composable UI components, and you can build the chat interface like building blocks. At the same time, it is compatible with multiple AI backends (such as AI SDK, LangGraph, Mastra, etc.) and supports a wide range of AI model providers.Applicable scenarios
Assistant UI is very suitable for various applications that need to integrate AI chat functions, including: customer service chatbots, internal knowledge assistants, code assistants, educational applications, content creation tools, etc. Any scenario that needs to add an intelligent dialogue interface to the application can use Assistant UI.Main Features
Composable UI components
Adopting a design concept similar to shadcn/ui, it provides composable UI primitives instead of a single monolithic component. You can customize every pixel and have full control over the interface appearance.
Production - ready UX
Out - of - the - box production - grade user experience, including features such as streaming, auto - scrolling, retry mechanism, attachment support, Markdown rendering, code highlighting, and voice input (dictation).
Tool invocation and JSON rendering
Able to render tool invocations and JSON data as components, support inline collection of human approval, and enable secure front - end operations.
Extensive integration support
Supports multiple AI backends, including AI SDK, LangGraph, Mastra, or custom backends. It also supports a wide range of model providers, such as OpenAI, Anthropic, Mistral, Google Gemini, etc.
Keyboard shortcuts and accessibility
Built - in keyboard shortcuts and full accessibility support ensure that all users can easily use the chat interface.
Assistant Cloud integration
Optionally integrate Assistant Cloud, which provides chat history and analysis functions and can be enabled with just one environment variable.
Advantages
Quick to go live: Battle - tested components with built - in streaming and attachment functions
Highly customizable: Adopting a composable design concept instead of a single monolithic component
Excellent developer experience: Reasonable default settings, keyboard shortcuts, accessibility, and strong TypeScript support
Enterprise - ready: Optional chat history and analysis functions provided through Assistant Cloud
Active community: Supported by Y Combinator and has an active Discord community
Limitations
Only supports React: Currently only provides a React version and does not support other front - end frameworks
Learning curve: Although easy to use, full customization requires an understanding of its component architecture
Dependent on backend integration: Needs to be used in conjunction with an AI backend and is not a complete end - to - end solution
How to Use
Create a new project
If you want to start a new project, you can use the create command to quickly set up the basic structure.
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Initialize in an existing project
If you already have a React project, you can use the init command to add Assistant UI to the project.
Configure the AI backend
Select a suitable AI backend (AI SDK, LangGraph, Mastra, or a custom backend) according to your needs and configure it.
Build the chat interface
Use the components provided by Assistant UI to build your chat interface and customize the style and layout as needed.
Usage Examples
Customer service chatbot
Build an intelligent customer service chatbot to help users answer product - related questions and provide technical support.
Code assistant
Create a code - writing assistant to help developers generate code snippets, explain code logic, or debug problems.
Content creation assistant
Develop a content creation tool to help authors generate article outlines, polish text, or translate content.
Internal knowledge base assistant
Build an internal knowledge assistant for the enterprise to help employees quickly find company policies, technical documents, or process guides.
Frequently Asked Questions
Is Assistant UI free?
Do I need to have AI development experience to use Assistant UI?
Which AI models does Assistant UI support?
Can I use Assistant UI in a mobile application?
How can I customize the appearance of Assistant UI?
Is Assistant Cloud necessary?
Related Resources
Official website
The official website of Assistant UI, containing product introductions, demos, and the latest information
Documentation
Complete official documentation, including installation guides, API references, and usage tutorials
Examples
Actual usage cases and demos, showing various application scenarios of Assistant UI
GitHub repository
The source code repository of Assistant UI, where you can view the code, submit issues, or participate in contributions
Discord community
Join the Discord community of Assistant UI to communicate with other developers and get help
Contact sales
If you need enterprise support or customized services, you can make an appointment for a sales consultation
Demo video (short version)
A short demo video of Assistant UI to quickly understand the core functions
Demo video (long version)
A detailed demo video of Assistant UI, including more usage scenarios and tips
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