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An MCP (Model Context Protocol) server that acts as a bridge to query multiple LLMs -- both OpenAI-compatible HTTP APIs and CLI coding agents. Just like rubber duck debugging, explain your problems to various AI "ducks" and get different perspectives!
](https://www.npmjs.com/package/mcp-rubber-duck) [ [](https://registry.modelcontextprotocol.io)
- Universal OpenAI Compatibility -- Works with any OpenAI-compatible API endpoint
- CLI Agent Support -- Use CLI coding agents (Claude Code, Codex, Gemini CLI, Grok, Aider) as ducks
- Multiple Ducks -- Configure and query multiple LLM providers simultaneously
- Conversation Management -- Maintain context across multiple messages
- Duck Council -- Get responses from all your configured LLMs at once
- Consensus Voting -- Multi-duck voting with reasoning and confidence scores
- LLM-as-Judge -- Have ducks evaluate and rank each other's responses
- Iterative Refinement -- Two ducks collaboratively improve responses
- Structured Debates -- Oxford, Socratic, and adversarial debate formats
- MCP Prompts -- 8 reusable prompt templates for multi-LLM workflows
- Vision Input -- Send images alongside prompts to vision-capable models (docs)
- Automatic Failover -- Falls back to other providers if primary fails
- Health Monitoring -- Real-time health checks for all providers
- Usage Tracking -- Track requests, toke
Works with Claude (desktop and mobile), Cursor, Windsurf, VS Code, and any MCP-compatible AI app.
Category: Developer Tools
Don't lose this
Three weeks from now, you'll want nesquikm/mcp-rubber-duck again. Will you remember where to find it?
Save it to your library and the next time you need nesquikm/mcp-rubber-duck, it’s one tap away — from any AI app you use. Group it into a bench with the rest of the team for that kind of task and you can pull the whole stack at once.
⚡ Pro tip for geeks: add a-gnt 🤵🏻♂️ as a custom connector in Claude or a custom GPT in ChatGPT — one click and your library is right there in the chat. Or, if you’re in an editor, install the a-gnt MCP server and say “use my [bench name]” in Claude Code, Cursor, VS Code, or Windsurf.
a-gnt's Take
Our honest review
This plugs directly into your AI and gives it new abilities it didn't have before. nesquikm/mcp-rubber-duck. Once connected, just ask your AI to use it. It's completely free and works across most major AI apps. This one just landed in the catalog — worth trying while it's fresh.
Tips for getting started
Tap "Get" above, pick your AI app, and follow the steps. Most installs take under 30 seconds.
What's New
Imported from awesome:punkpeye/awesome-mcp-servers
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