Loopback MCP Server: Install & Setup

Install Loopback in Claude Code

Claude Code

claude mcp add loopback -- npx -y loopback-mcp-server

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "loopback": {
      "command": "npx",
      "args": [
        "-y",
        "loopback-mcp-server"
      ]
    }
  }
}

Feedback bus for coding agents: pin feedback on the app you're building; a fix turns the pin green

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

Run: claude mcp add loopback -- npx -y loopback-mcp-server

getmarrow/marrow-mcp

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medelin/mcp-server

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finfin/mermaid-mcp-app

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andrewnexa-hub/guildbook-mcp

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