21st.dev Magic MCP vs Replicate Flux MCP

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

	21st.dev Magic MCP Generate beautiful, modern UI components from natural-language descriptions inside your IDE. Unverified stdio (local) API key TypeScript	Replicate Flux MCP Community server generating images and SVG assets via Replicate's Flux models. Verified stdio (local) API key TypeScript
Category	Design & Media	Design & Media
Language	TypeScript	TypeScript
Transport	stdio (local)	stdio (local)
Auth	API key	API key
GitHub stars	5.2k	103
Last commit	5 months ago	3 months ago
Verified
Actively maintained
Install	`npx @21st-dev/cli@latest install <client> --api-key <key>`	`npx -y replicate-flux-mcp`
Repo	Open	Open

Verdict

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

Pick Replicate Flux MCP if you need the broadest set of tools, and you want a verified, documented setup.

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\""
      ]
    }
  }
}

Add Replicate Flux MCP

Install / run

npx -y replicate-flux-mcp

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

{
  "mcpServers": {
    "replicate-flux-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "replicate-flux-mcp"
      ],
      "env": {
        "REPLICATE_API_TOKEN": "<your-replicate-api-token>"
      }
    }
  }
}

FAQ

21st.dev Magic MCP or Replicate Flux MCP — which is better?

Pick 21st.dev Magic MCP if you want the official, vendor-maintained server, and you prefer the more popular, battle-tested option. Pick Replicate Flux MCP if you need the broadest set of tools, and you want a verified, documented setup.

Can I use both 21st.dev Magic MCP and Replicate Flux 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 21st.dev Magic MCP and Replicate Flux MCP work with Claude, Cursor and Windsurf?

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

View 21st.dev Magic MCP →View Replicate Flux MCP →More comparisons →