Claude Mermaid MCP Server vs Shadcn UI v4 MCP Server

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

	Claude Mermaid MCP Server Render Mermaid diagrams in Claude Code with live-reload browser preview and SVG/PNG/PDF export. Unverified stdio (local) No auth TypeScript	Shadcn UI v4 MCP Server Give AI assistants full access to shadcn/ui v4 components, blocks, demos, and metadata across React, Svelte, Vue, and React Native. 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	170	2.8k
Last commit	1 day ago	1 month ago
Verified
Actively maintained
Install	`npm install -g claude-mermaid`	`npx @jpisnice/shadcn-ui-mcp-server`
Repo	Open	Open

Verdict

Pick Claude Mermaid MCP Server if you want zero-setup with no API key.

Pick Shadcn UI v4 MCP Server if you prefer the more popular, battle-tested option, and you need the broadest set of tools.

Add Claude Mermaid MCP Server

Install / run

npm install -g claude-mermaid

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

{
  "mcpServers": {
    "claude-mermaid-mcp-server": {
      "command": "claude-mermaid",
      "args": []
    }
  }
}

Add Shadcn UI v4 MCP Server

Install / run

npx @jpisnice/shadcn-ui-mcp-server

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

{
  "mcpServers": {
    "shadcn-ui-v4-mcp-server": {
      "command": "npx",
      "args": [
        "@jpisnice/shadcn-ui-mcp-server",
        "--github-api-key",
        "ghp_your_token_here"
      ]
    }
  }
}

FAQ

Claude Mermaid MCP Server or Shadcn UI v4 MCP Server — which is better?

Pick Claude Mermaid MCP Server if you want zero-setup with no API key. Pick Shadcn UI v4 MCP Server if you prefer the more popular, battle-tested option, and you need the broadest set of tools.

Can I use both Claude Mermaid MCP Server and Shadcn UI v4 MCP Server?

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 Claude Mermaid MCP Server and Shadcn UI v4 MCP Server work with Claude, Cursor and Windsurf?

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

View Claude Mermaid MCP Server →View Shadcn UI v4 MCP Server →More comparisons →