21st.dev Magic — AI UI Component Generator

21st.dev Magic is an MCP (Model Context Protocol) server that generates beautiful, modern UI components through natural language descriptions. Access to the 21st.dev component library with real-time preview.

Package: @21st-dev/magic
Website: https://21st.dev/magic
License: MIT

What It Does

Describe a UI component in natural language, Magic generates it instantly:

"/ui create a modern navigation bar with responsive design and dark mode toggle"

The AI agent:

1. Searches 21st.dev's component library for the best match
2. Generates a polished React + Tailwind component
3. Adds it to your project automatically

Installation

Method 1: Interactive (Recommended)

npx @21st-dev/cli@latest install
# Select your IDE: Cursor, Windsurf, Cline, Claude

Method 2: MCP Config

Add to MCP config for your AI assistant:

{
  "mcpServers": {
    "@21st-dev/magic": {
      "command": "npx",
      "args": ["-y", "@21st-dev/magic@latest"]
    }
  }
}

Config file locations:

• Cursor: ~/.cursor/mcp.json
• Windsurf: ~/.codeium/windsurf/mcp_config.json
• Claude Code: ~/.claude/mcp_config.json

Prerequisites

• Node.js (Latest LTS)
• API key from 21st.dev Magic Console

Features

Feature	Description
Natural Language	Describe components in plain English
21st.dev Library	Access 1000+ pre-built, customizable components
React + Tailwind	Modern stack with TypeScript support
SVGL Integration	Professional brand logos and assets
Multi-IDE	Cursor, Windsurf, VSCode, Claude Code
Real-time Preview	See components as they're generated

Usage in FETIH

When the user requests a UI component:

1. Start with /ui Command

/ui create a pricing table with 3 tiers, popular badge, and hover effects

2. Describe Component Requirements

Be specific about:

• Layout: grid, flex, sidebar, modal, navbar
• Style: glassmorphism, minimal, brutalist, dark mode
• Features: responsive, animated, accessible
• Stack: React + Tailwind (default), shadcn/ui

3. Iterate

/ui add a testimonial carousel below the pricing table
/ui change the color scheme to match our brand (#3B82F6)
/ui make the cards stack vertically on mobile

Component Categories

Category	Examples
Navigation	Navbar, sidebar, breadcrumb, tabs, pagination
Cards	Product card, pricing card, profile card, stat card
Forms	Login, signup, contact, search, newsletter
Data Display	Table, chart, timeline, calendar, dashboard
Feedback	Modal, toast, alert, tooltip, skeleton
Layout	Hero, footer, grid, split screen, bento grid
Marketing	CTA section, testimonial, FAQ, pricing, feature list

Best Practices

1. Be specific — "modern SaaS pricing table with 3 tiers" > "pricing"
2. Mention style — "glassmorphism dark mode dashboard" gives better results
3. Include interactions — "with hover scale effect and click to expand"
4. Specify responsive — "collapses to accordion on mobile"
5. Iterate — First result is a starting point, refine with follow-up commands

Tips for Complex Components

# Multi-step generation
/ui create a dashboard layout with sidebar navigation
/ui add a stats row with 4 metric cards at the top
/ui add a revenue chart in the main content area
/ui add a recent activity feed in the right sidebar
/ui make the sidebar collapsible with animation

Integration with ui-ux-pro-max

For best results, combine with the ui-ux-pro-max skill:

1. Use ui-ux-pro-max to generate design system (colors, typography, styles)
2. Use 21st-dev-magic to generate individual components matching that system
3. Apply framer-motion for custom animations beyond what Magic generates

Troubleshooting

Issue	Solution
No API key	Generate at https://21st.dev/magic/console
MCP not connecting	Check ~/.claude/mcp_config.json
Component not matching	Add more detail to description
Rate limit	Upgrade plan or wait for reset

Generating API Key

1. Visit https://21st.dev/magic/console
2. Sign in with GitHub
3. Click "Generate API Key"
4. Add to your MCP config

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