Adaptive Cards MCP vs 21st.dev Magic MCP

A side-by-side comparison of two Design & Media servers — tools, transport, auth, maintenance, and copy-paste config for each.

	Adaptive Cards MCP Generate, validate, and optimize accessible Adaptive Cards for Teams, Outlook, Copilot, and other Microsoft surfaces. Unverified stdio (local) No auth TypeScript	21st.dev Magic MCP Generate beautiful, modern UI components from natural-language descriptions inside your IDE. Unverified stdio (local) API key TypeScript
Category	Design & Media	Design & Media
Language	TypeScript	TypeScript
Transport	stdio (local)	stdio (local)
Auth	None	API key
GitHub stars	27	5.2k
Last commit	7 days ago	4 months ago
Verified
Actively maintained
Install	`claude mcp add adaptive-cards-mcp -- npx adaptive-cards-mcp`	`npx @21st-dev/cli@latest install <client> --api-key <key>`
Repo	Open	Open

Verdict

Pick Adaptive Cards MCP if you want zero-setup with no API key, and you need the broadest set of tools.

Pick 21st.dev Magic MCP if you want the official, vendor-maintained server, and you prefer the more popular, battle-tested option.

Add Adaptive Cards MCP

Install / run

claude mcp add adaptive-cards-mcp -- npx adaptive-cards-mcp

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "adaptive-cards-mcp": {
      "command": "npx",
      "args": [
        "adaptive-cards-mcp"
      ]
    }
  }
}

Add 21st.dev Magic MCP

Install / run

npx @21st-dev/cli@latest install <client> --api-key <key>

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "21st-dev-magic-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@21st-dev/magic@latest",
        "API_KEY=\"your-api-key\""
      ]
    }
  }
}

FAQ

Adaptive Cards MCP or 21st.dev Magic MCP — which is better?

Pick Adaptive Cards MCP if you want zero-setup with no API key, and you need the broadest set of tools. Pick 21st.dev Magic MCP if you want the official, vendor-maintained server, and you prefer the more popular, battle-tested option.

Can I use both Adaptive Cards MCP and 21st.dev Magic MCP?

Yes — MCP clients let you enable multiple servers at once. Add both configs to your client's mcpServers and use whichever tool fits the task.

Do Adaptive Cards MCP and 21st.dev Magic MCP work with Claude, Cursor and Windsurf?

Both do. Copy the per-client config below into Claude Desktop, Cursor, or Windsurf.

View Adaptive Cards MCP →View 21st.dev Magic MCP →More comparisons →