21st.dev Magic MCP

왜 쓰나요

핵심 기능

v0-style component generation backed by 21st.dev's library
shadcn/ui, Tailwind, and Framer Motion patterns
Refine an existing component in place
Browse 5000+ pre-made components
Free tier with paid scaling

라이브 데모

실제 사용 모습

magic-mcp.replay ▶ 준비됨

0/0

설치

클라이언트 선택

~/Library/Application Support/Claude/claude_desktop_config.json · Windows: %APPDATA%\Claude\claude_desktop_config.json

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

Claude Desktop → Settings → Developer → Edit Config 열기. 저장 후 앱 재시작.

~/.cursor/mcp.json · .cursor/mcp.json

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

Cursor는 Claude Desktop과 동일한 mcpServers 스키마 사용. 프로젝트 설정이 전역보다 우선.

VS Code → Cline → MCP Servers → Edit

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

Cline 사이드바의 MCP Servers 아이콘 클릭 후 "Edit Configuration" 선택.

~/.codeium/windsurf/mcp_config.json

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

Claude Desktop과 같은 형식. Windsurf 재시작 후 적용.

~/.continue/config.json

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

Continue는 맵이 아닌 서버 오브젝트 배열 사용.

~/.config/zed/settings.json

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

context_servers에 추가. 저장 시 Zed가 핫 리로드.

claude mcp add magic-mcp -- npx -y @21st-dev/magic@latest

한 줄 명령. claude mcp list로 확인, claude mcp remove로 제거.

사용 사례

실전 활용법: 21st.dev Magic MCP

Generate a polished landing-page hero in under a minute

👤 Frontend engineers shipping fast ⏱ ~15 min intermediate

언제 쓸까: You need a hero section right now and don't want to start from a blank file.

사전 조건

Server/skill installed and authenticated — See repo README

흐름

Search for inspiration

Search 21st for hero sections that mix gradient + product screenshot.✓ 복사됨

→ 5–10 starter components
Generate the final one

Create a Hero component: dark gradient bg, headline 'Ship faster.' subhead 'AI for serious teams.' a primary CTA + secondary CTA, social proof row.✓ 복사됨

→ A complete tsx file using shadcn primitives

결과: A real production-shape component in one prompt.

함정

Generated components assume shadcn primitives are installed — Generated components assume shadcn primitives are installed — run npx shadcn add button card first.

함께 쓰기: filesystem · flyonui-mcp

조합

다른 MCP와 조합해 10배 효율

magic-mcp + filesystem

Pair with filesystem for complementary capabilities

Use this server together with filesystem to complete a multi-step task.✓ 복사됨

magic-mcp + flyonui-mcp

Pair with flyonui-mcp for complementary capabilities

Use this server together with flyonui-mcp to complete a multi-step task.✓ 복사됨

도구

이 MCP가 노출하는 것

도구	입력	언제 호출	비용
create_component	description, framework	Need a new UI component	21st credits
refine_component	component_code, instruction	Tweak an existing component	21st credits
search_components	query	Find a pre-made starting point	1 API call

비용 및 제한

운영 비용

API 쿼터: See provider docs for rate limits
호출당 토큰: Varies by tool
금액: See repo README for pricing details
팁: Cache tool results and avoid repeated identical calls.

보안

권한, 시크릿, 파급범위

자격 증명 저장: Use environment variables; never commit secrets

데이터 외부 송신: Tool calls go to the provider's API as documented

문제 해결

자주 발생하는 오류와 해결

API key invalid

Get a key at 21st.dev/settings/api and set TWENTY_FIRST_API_KEY.

확인: search_components returns results

component uses missing shadcn import

Run npx shadcn add <component> for each unresolved import.

확인: Vite/Next builds cleanly

대안