21st Dev Magic AI Agent
Officialby
Generate modern UI components instantly from natural language descriptions, with seamless integration into supported IDEs and full TypeScript support.
21st Dev Magic AI Agent Overview
What is 21st Dev Magic AI Agent about?
21st Dev Magic AI Agent enables developers to describe a UI component in plain English and receive a ready‑to‑use, type‑safe React component. The agent works inside Cursor, Windsurf, VS Code (with the Cline extension) and other compatible IDEs, pulling designs from the 21st.dev component library and SVGL assets.
How to use 21st Dev Magic AI Agent?
- Obtain an API key from the 21st.dev Magic Console.
- Install the server via the recommended CLI command:
Replacenpx @21st-dev/cli@latest install <client> --api-key <YOUR_API_KEY><client>withcursor,windsurf,cline, orclaude. - In the IDE’s AI chat, type
/uifollowed by a natural‑language description, e.g./ui create a modern navigation bar with responsive design. - The agent generates the component, adds it to the project, and opens a preview.
Key features of 21st Dev Magic AI Agent
- AI‑powered UI generation from natural language prompts.
- Multi‑IDE support (Cursor, Windsurf, VS Code, Cline).
- Real‑time preview of generated components.
- Full TypeScript typings for type‑safe development.
- SVGL integration for professional brand assets.
- Extensible component library based on 21st.dev designs.
- Beta‑only free access with the ability to upgrade for higher limits.
Use cases of 21st Dev Magic AI Agent
- Rapid prototyping of UI screens without hand‑coding HTML/CSS.
- Consistent design language across teams by pulling from a shared component library.
- On‑the‑fly creation of custom components during pair programming or code reviews.
- Accelerating UI implementation for internal tools, dashboards, and SaaS products.
FAQ from the 21st Dev Magic AI Agent
How does the agent interact with my codebase?
Only files related to the generated component are created or modified, respecting existing project structure and style guidelines.
Can I customize the generated components?
Yes. All output is standard React/TSX code that you can edit, re‑style, or extend just like any manually written component.
What if I exceed my monthly generation limit?
You will be prompted to upgrade your plan. Existing components remain functional regardless of the limit.
Will the agent handle complex UIs?
It works best when complex interfaces are broken into smaller components. The agent can generate interactive forms, modals, navigation bars, and more.
Where can I get help or contribute?
Join the Discord community, submit issues on GitHub, or follow updates on Twitter.
21st Dev Magic AI Agent's README
21st.dev Magic AI Agent
Magic Component Platform (MCP) is a powerful AI-driven tool that helps developers create beautiful, modern UI components instantly through natural language descriptions. It integrates seamlessly with popular IDEs and provides a streamlined workflow for UI development.
🌟 Features
- AI-Powered UI Generation: Create UI components by describing them in natural language
- Multi-IDE Support:
- Cursor IDE integration
- Windsurf support
- VSCode support
- VSCode + Cline integration (Beta)
- Modern Component Library: Access to a vast collection of pre-built, customizable components inspired by 21st.dev
- Real-time Preview: Instantly see your components as you create them
- TypeScript Support: Full TypeScript support for type-safe development
- SVGL Integration: Access to a vast collection of professional brand assets and logos
- Component Enhancement: Improve existing components with advanced features and animations (Coming Soon)
🎯 How It Works
-
Tell Agent What You Need
- In your AI Agent's chat, just type
/uiand describe the component you're looking for - Example:
/ui create a modern navigation bar with responsive design
- In your AI Agent's chat, just type
-
Let Magic Create It
- Your IDE prompts you to use Magic
- Magic instantly builds a polished UI component
- Components are inspired by 21st.dev's library
-
Seamless Integration
- Components are automatically added to your project
- Start using your new UI components right away
- All components are fully customizable
🚀 Getting Started
Prerequisites
- Node.js (Latest LTS version recommended)
- One of the supported IDEs:
- Cursor
- Windsurf
- VSCode (with Cline extension)
Installation
-
Generate API Key
- Visit 21st.dev Magic Console
- Generate a new API key
-
Choose Installation Method
Method 1: CLI Installation (Recommended)
One command to install and configure MCP for your IDE:
npx @21st-dev/cli@latest install <client> --api-key <key>
Supported clients: cursor, windsurf, cline, claude
Method 2: Manual Configuration
If you prefer manual setup, add this to your IDE's MCP config file:
{
"mcpServers": {
"@21st-dev/magic": {
"command": "npx",
"args": ["-y", "@21st-dev/magic@latest", "API_KEY=\"your-api-key\""]
}
}
}
Config file locations:
- Cursor:
~/.cursor/mcp.json - Windsurf:
~/.codeium/windsurf/mcp_config.json - Cline:
~/.cline/mcp_config.json - Claude:
~/.claude/mcp_config.json
Method 3: VS Code Installation
For one-click installation, click one of the install buttons below:
Manual VS Code Setup
First, check the install buttons above for one-click installation. For manual setup:
Add the following JSON block to your User Settings (JSON) file in VS Code. You can do this by pressing Ctrl + Shift + P and typing Preferences: Open User Settings (JSON):
{
"mcp": {
"inputs": [
{
"type": "promptString",
"id": "apiKey",
"description": "21st.dev Magic API Key",
"password": true
}
],
"servers": {
"@21st-dev/magic": {
"command": "npx",
"args": ["-y", "@21st-dev/magic@latest"],
"env": {
"API_KEY": "${input:apiKey}"
}
}
}
}
}
Optionally, you can add it to a file called .vscode/mcp.json in your workspace:
{
"inputs": [
{
"type": "promptString",
"id": "apiKey",
"description": "21st.dev Magic API Key",
"password": true
}
],
"servers": {
"@21st-dev/magic": {
"command": "npx",
"args": ["-y", "@21st-dev/magic@latest"],
"env": {
"API_KEY": "${input:apiKey}"
}
}
}
}
❓ FAQ
How does Magic AI Agent handle my codebase?
Magic AI Agent only writes or modifies files related to the components it generates. It follows your project's code style and structure, and integrates seamlessly with your existing codebase without affecting other parts of your application.
Can I customize the generated components?
Yes! All generated components are fully editable and come with well-structured code. You can modify the styling, functionality, and behavior just like any other React component in your codebase.
What happens if I run out of generations?
If you exceed your monthly generation limit, you'll be prompted to upgrade your plan. You can upgrade at any time to continue generating components. Your existing components will remain fully functional.
How soon do new components get added to 21st.dev's library?
Authors can publish components to 21st.dev at any time, and Magic Agent will have immediate access to them. This means you'll always have access to the latest components and design patterns from the community.
Is there a limit to component complexity?
Magic AI Agent can handle components of varying complexity, from simple buttons to complex interactive forms. However, for best results, we recommend breaking down very complex UIs into smaller, manageable components.
🛠️ Development
Project Structure
mcp/
├── app/
│ └── components/ # Core UI components
├── types/ # TypeScript type definitions
├── lib/ # Utility functions
└── public/ # Static assets
Key Components
IdeInstructions: Setup instructions for different IDEsApiKeySection: API key management interfaceWelcomeOnboarding: Onboarding flow for new users
🤝 Contributing
We welcome contributions! Please join our Discord community and provide feedback to help improve Magic Agent. The source code is available on GitHub.
👥 Community & Support
- Discord Community - Join our active community
- Twitter - Follow us for updates
⚠️ Beta Notice
Magic Agent is currently in beta. All features are free during this period. We appreciate your feedback and patience as we continue to improve the platform.
📝 License
MIT License
🙏 Acknowledgments
- Thanks to our beta testers and community members
- Special thanks to the Cursor, Windsurf, and Cline teams for their collaboration
- Integration with 21st.dev for component inspiration
- SVGL for logo and brand asset integration
For more information, join our Discord community or visit 21st.dev/magic.
21st Dev Magic AI Agent Reviews
Login Required
Please log in to share your review and rating for this MCP.
Actions
21st Dev Magic AI Agent's Information
Configuration
{
"mcpServers": {
"@21st-dev/magic": {
"command": "npx",
"args": [
"-y",
"@21st-dev/magic@latest"
],
"env": {
"API_KEY": "<YOUR_API_KEY>"
}
}
}
}Configure Clients
Similar MCP Servers like 21st Dev Magic AI Agent
Explore related MCPs that share similar capabilities and solve comparable challenges
Sequential Thinking
Officialby modelcontextprotocol
An MCP server implementation that provides a tool for dynamic and reflective problem-solving through a structured thinking process.
LibreChat
OfficialClientby danny-avila
Provides a self‑hosted ChatGPT‑style interface supporting numerous AI models, agents, code interpreter, image generation, multimodal interactions, and secure multi‑user authentication.
Goose
by block
Automates engineering tasks on local machines, executing code, building projects, debugging, orchestrating workflows, and interacting with external APIs using any LLM.
Roo Code
OfficialClientby RooCodeInc
Provides an autonomous AI coding partner inside the editor that can understand natural language, manipulate files, run commands, browse the web, and be customized via modes and instructions.
Pydantic AI
by pydantic
A Python framework that enables seamless integration of Pydantic validation with large language models, providing type‑safe agent construction, dependency injection, and structured output handling.
Mcp Agent
Clientby lastmile-ai
Build effective agents using Model Context Protocol and simple, composable workflow patterns.
Mcp Use
Clientby mcp-use
A Python SDK that simplifies interaction with MCP servers and enables developers to create custom agents with tool‑calling capabilities.
5ire
Clientby nanbingxyz
A cross‑platform desktop AI assistant that connects to major LLM providers, supports a local knowledge base, and enables tool integration via MCP servers.
Gptme
Clientby gptme
Provides a personal AI assistant that runs directly in the terminal, capable of executing code, manipulating files, browsing the web, using vision, and interfacing with various LLM providers.