SERVER

Rubber Duck

Rank #1,362

io.github.nesquikm/rubber-duck

Bridge to multiple LLMs and CLI agents: councils, debates, voting, and more

5 versions

176 GitHub stars

by nesquikm (1 servers)View repository ↗Claim this server

First listed

Aug 27, 2025

Last publish date

Apr 3, 2026

OVERVIEW

Rubber Duck is a Model Context Protocol (MCP) server published by nesquikm. It ranks #1,362 of 132,046 servers tracked on MCP Toplist, and its repository has 176 GitHub stars. Rubber Duck is listed across 4 registries — Official MCP, PulseMCP, mcp.so and Glama, with 5 tracked versions. It was first listed on Aug 27, 2025 and most recently updated on Apr 3, 2026.

STANDING

#1,362of 132,046 tracked serversTop 5%

Ranks ahead of 130,684 of 132,046 servers on MCP Toplist.

Recent momentum

+156GitHub stars since Sep 15 (+780%)

CONNECT

Use Rubber Duck

No setupRuns out of the box

No credentials or required configuration declared — add it to your MCP client and go.

npm package

claude mcp add rubber-duck -e "OPENAI_API_KEY=<your OPENAI_API_KEY>" -e "GEMINI_API_KEY=<your GEMINI_API_KEY>" -e "GROQ_API_KEY=<your GROQ_API_KEY>" -e "DEFAULT_PROVIDER=<your DEFAULT_PROVIDER>" -- npx -y mcp-rubber-duck

Replace each placeholder with your own value before saving.

npm package

[mcp_servers.rubber-duck]
command = "npx"
args = ["-y", "mcp-rubber-duck"]

[mcp_servers.rubber-duck.env]
OPENAI_API_KEY = "<your OPENAI_API_KEY>"
GEMINI_API_KEY = "<your GEMINI_API_KEY>"
GROQ_API_KEY = "<your GROQ_API_KEY>"
DEFAULT_PROVIDER = "<your DEFAULT_PROVIDER>"

Add to ~/.codex/config.toml. Replace each placeholder with your own value before saving.

npm package

{
  "mcpServers": {
    "rubber-duck": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-rubber-duck"
      ],
      "env": {
        "OPENAI_API_KEY": "<your OPENAI_API_KEY>",
        "GEMINI_API_KEY": "<your GEMINI_API_KEY>",
        "GROQ_API_KEY": "<your GROQ_API_KEY>",
        "DEFAULT_PROVIDER": "<your DEFAULT_PROVIDER>"
      }
    }
  }
}

Add to claude_desktop_config.json (Settings → Developer → Edit Config). Replace each placeholder with your own value before saving.

npm package

{
  "mcpServers": {
    "rubber-duck": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-rubber-duck"
      ],
      "env": {
        "OPENAI_API_KEY": "<your OPENAI_API_KEY>",
        "GEMINI_API_KEY": "<your GEMINI_API_KEY>",
        "GROQ_API_KEY": "<your GROQ_API_KEY>",
        "DEFAULT_PROVIDER": "<your DEFAULT_PROVIDER>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project). Replace each placeholder with your own value before saving.

npm package

{
  "servers": {
    "rubber-duck": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "mcp-rubber-duck"
      ],
      "env": {
        "OPENAI_API_KEY": "<your OPENAI_API_KEY>",
        "GEMINI_API_KEY": "<your GEMINI_API_KEY>",
        "GROQ_API_KEY": "<your GROQ_API_KEY>",
        "DEFAULT_PROVIDER": "<your DEFAULT_PROVIDER>"
      }
    }
  }
}

Save as .vscode/mcp.json in your workspace. Replace each placeholder with your own value before saving.

npm package

{
  "mcpServers": {
    "rubber-duck": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-rubber-duck"
      ],
      "env": {
        "OPENAI_API_KEY": "<your OPENAI_API_KEY>",
        "GEMINI_API_KEY": "<your GEMINI_API_KEY>",
        "GROQ_API_KEY": "<your GROQ_API_KEY>",
        "DEFAULT_PROVIDER": "<your DEFAULT_PROVIDER>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json. Replace each placeholder with your own value before saving.

npm package

{
  "mcpServers": {
    "rubber-duck": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-rubber-duck"
      ],
      "env": {
        "OPENAI_API_KEY": "<your OPENAI_API_KEY>",
        "GEMINI_API_KEY": "<your GEMINI_API_KEY>",
        "GROQ_API_KEY": "<your GROQ_API_KEY>",
        "DEFAULT_PROVIDER": "<your DEFAULT_PROVIDER>"
      }
    }
  }
}

Replace each placeholder with your own value before saving.

BADGE

Show your rank

Maintain this server? Add the live rank badge to your README — it updates automatically as the leaderboard changes.

Markdown

[![MCP Toplist](https://mcptoplist.com/badge/io.github.nesquikm%2Frubber-duck.svg)](https://mcptoplist.com/server/io.github.nesquikm%2Frubber-duck)

HTML

<a href="https://mcptoplist.com/server/io.github.nesquikm%2Frubber-duck"><img src="https://mcptoplist.com/badge/io.github.nesquikm%2Frubber-duck.svg" alt="MCP Toplist: Top 5% of 132,046" /></a>

Variants: append ?metric=score or ?metric=stars to the image URL.

REGISTRIES

Listed on 4 registries

ORGANIZATION

nesquikm

Organization

nesquikm

Servers in org

Versions across org

VERSIONS

Available versions (5)

Version	Published
1.18.0	Apr 3, 2026
1.17.1	Apr 3, 2026
1.14.3	Feb 23, 2026
1.1.1	Sep 17, 2025
0.1.0	Nov 25, 2024

FAQ

Frequently asked questions

Who maintains Rubber Duck?: Rubber Duck is maintained by nesquikm, which publishes 1 MCP server (5 total versions) tracked on MCP Toplist.
Is Rubber Duck listed on the Official MCP Registry?: Yes — Rubber Duck is listed on the Official MCP Registry, alongside PulseMCP, mcp.so and Glama.
How many versions does Rubber Duck have?: MCP Toplist tracks 5 versions of Rubber Duck, most recently published on Apr 3, 2026.
Where can I find the source code for Rubber Duck?: The source code for Rubber Duck is hosted at github.com/nesquikm/mcp-rubber-duck.

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