ComfyUI Builder MCP Server

What the code does

We read the source, 19 h ago · rules 3dff92dd89df

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

      const out = execSync(`netstat -ano | findstr :${port}`, { encoding: 'utf8', stdio: ['pipe', 'pipe', 'pipe'] });

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Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

claude mcp add comfy-ui-builder -- npx -y mcp-comfy-ui-builder

{
  "mcpServers": {
    "comfy-ui-builder": {
      "args": [
        "-y",
        "mcp-comfy-ui-builder"
      ],
      "command": "npx"
    }
  }
}

[mcp_servers.comfy-ui-builder]
command = "npx"
args = ["-y", "mcp-comfy-ui-builder"]

{
  "mcpServers": {
    "comfy-ui-builder": {
      "args": [
        "-y",
        "mcp-comfy-ui-builder"
      ],
      "command": "npx"
    }
  }
}

{
  "mcpServers": {
    "comfy-ui-builder": {
      "args": [
        "-y",
        "mcp-comfy-ui-builder"
      ],
      "command": "npx"
    }
  }
}

This one needs environment variables set before it will start: COMFYUI_HOST (ComfyUI API URL (e.g. http://127.0.0.1:8188). Required for execution, queue, outputs.), COMFYUI_PATH (Path to ComfyUI install. Required for install_custom_node, install_model.), COMFYUI_KNOWLEDGE_DIR (Path to knowledge directory (default: package knowledge/). Use when MCP runs from different cwd.). The author declared them in the registry entry; get the values from the project itself.