21st.dev Magic MCP — Instalar & Demo ao vivo

Por que usar

Principais recursos

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

Demo ao vivo

Como fica na prática

magic-mcp.replay ▶ pronto

0/0

Instalar

Escolha seu cliente

~/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"
      ]
    }
  }
}

Abra Claude Desktop → Settings → Developer → Edit Config. Reinicie após salvar.

~/.cursor/mcp.json · .cursor/mcp.json

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

Cursor usa o mesmo esquema mcpServers que o Claude Desktop. Config de projeto vence a global.

VS Code → Cline → MCP Servers → Edit

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

Clique no ícone MCP Servers na barra lateral do Cline, depois "Edit Configuration".

~/.codeium/windsurf/mcp_config.json

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

Mesmo formato do Claude Desktop. Reinicie o Windsurf para aplicar.

~/.continue/config.json

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

O Continue usa um array de objetos de servidor em vez de um map.

~/.config/zed/settings.json

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

Adicione em context_servers. Zed recarrega automaticamente ao salvar.

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

Uma linha só. Verifique com claude mcp list. Remova com claude mcp remove.

Casos de uso

Usos do mundo real: 21st.dev Magic MCP

Generate a polished landing-page hero in under a minute

👤 Frontend engineers shipping fast ⏱ ~15 min intermediate

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

Pré-requisitos

Server/skill installed and authenticated — See repo README

Fluxo

Search for inspiration

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

→ 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.✓ Copiado

→ A complete tsx file using shadcn primitives

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

Armadilhas

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

Combine com: filesystem · flyonui-mcp

Combinações

Combine com outros MCPs para 10× de alavancagem

magic-mcp + filesystem

Pair with filesystem for complementary capabilities

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

magic-mcp + flyonui-mcp

Pair with flyonui-mcp for complementary capabilities

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

Ferramentas

O que este MCP expõe

Ferramenta	Entradas	Quando chamar	Custo
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

Custo e limites

O que custa rodar

Cota de API: See provider docs for rate limits
Tokens por chamada: Varies by tool
Monetário: See repo README for pricing details
Dica: Cache tool results and avoid repeated identical calls.

Segurança

Permissões, segredos, alcance

Armazenamento de credenciais: Use environment variables; never commit secrets

Saída de dados: Tool calls go to the provider's API as documented

Solução de problemas

Erros comuns e correções

API key invalid

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

Verificar: search_components returns results

component uses missing shadcn import

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

Verificar: Vite/Next builds cleanly

Alternativas

21st.dev Magic MCP vs. outros

Alternativa	Quando usar	Troca
v0.dev	You prefer the v0 web UI	Outside your editor; different style

Mais

Recursos

📖 Leia o README oficial no GitHub

🐙 Ver issues abertas

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