Code Execution MCP Server

MCP Rubber Duck

Name: MCP Rubber Duck
Author: nesquikm

An MCP server that bridges to multiple OpenAI-compatible LLMs - your AI rubber duck debugging panel for explaining problems to various AI "ducks" and getting different perspectives

Scan found nothing by nesquikm143MITTypeScriptIntermediatestdio

View on GitHub Install Guide

Install

Claude Code

claude mcp add mcp-rubber-duck -- npx -y rubber-duck

Cursor

{
  "mcpServers": {
    "mcp-rubber-duck": {
      "command": "npx",
      "args": [
        "-y",
        "rubber-duck"
      ]
    }
  }
}

VS Code

{
  "mcp": {
    "servers": {
      "mcp-rubber-duck": {
        "command": "npx",
        "args": [
          "-y",
          "rubber-duck"
        ]
      }
    }
  }
}

Windsurf

{
  "mcpServers": {
    "mcp-rubber-duck": {
      "command": "npx",
      "args": [
        "-y",
        "rubber-duck"
      ]
    }
  }
}

Claude Desktop

{
  "mcpServers": {
    "mcp-rubber-duck": {
      "command": "npx",
      "args": [
        "-y",
        "rubber-duck"
      ]
    }
  }
}

Safety Report

86% Scan found nothing

Scanned 5 months ago

6 passed 1 warnings

Security

Authentication

details

Authentication detected: env_api_key

Pass

CORS Policy

details

stdio transport — CORS not applicable

N/A

Rate Limiting

details

Rate limiting detected: rate_limit_middleware, requests_per

Pass

Known CVEs

details

No known CVEs in dependencies

Pass

Code Quality

Dependency Audit

details

No known vulnerable dependencies detected

Pass

Dangerous Patterns

details

No dangerous code patterns detected

Pass

License

details

License: MIT

Pass

Community

Maintenance Status

details

Last commit 5 months ago

Warning

Learn about our security methodology →

Compatibility

Claude CodeFull support

Tested

CursorFull support

Tested

VS CodeFull support via Copilot

Tested

WindsurfFull support

Tested

Claude DesktopFull support

Tested

Frequently Asked Questions

What is MCP Rubber Duck?

An MCP server that bridges to multiple OpenAI-compatible LLMs - your AI rubber duck debugging panel for explaining problems to various AI "ducks" and getting different perspectives

Is MCP Rubber Duck safe to use?

We cannot tell you that, and nobody scanning at this scale can. What we did in March 2026 was shallow-clone MCP Rubber Duck and run five keyword searches over its source: auth identifiers, CORS configuration, rate-limit identifiers, the dependency manifest against a hardcoded list of 18 known-vulnerable packages, and unguarded eval/exec calls. None of them matched. A text search cannot follow a variable, judge intent, or tell you what a server does once it is running, so "nothing matched" is not "safe". What the scan does and does not cover is written out at /mcp/security.

What are alternatives to MCP Rubber Duck?

Similar MCP servers include Serena, MCP Run Python, DesktopCommanderMCP. Each serves a similar purpose but may differ in features, language, and compatibility.

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