Polydev

<p align="center"> <img src="https://raw.githubusercontent.com/polydev-ai/polydev/main/public/logo.png" alt="Polydev Logo" width="120" /> </p>

<p align="center"> <strong>Multi-model AI perspectives for your coding agents</strong><br> Query GPT-5, Claude, Gemini, and Grok simultaneously through one MCP server </p>

<p align="center"> <a href="https://www.npmjs.com/package/polydev-ai"><img src="https://img.shields.io/npm/v/polydev-ai.svg" alt="npm version"></a> <a href="https://polydev.ai/articles/swe-bench-paper"><img src="https://img.shields.io/badge/SWE--bench-74.6%25-brightgreen" alt="SWE-bench Verified"></a> <a href="https://opensource.org/licenses/MIT"><img src="https://img.shields.io/badge/License-MIT-blue.svg" alt="License: MIT"></a> </p>

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🚀 One-Command Install

Claude Code

claude mcp add polydev -- npx -y polydev-ai@latest

Cursor / Windsurf / Cline

npx polydev-ai@latest

OpenAI Codex CLI

npx polydev-ai@latest

Get your token at polydev.ai/dashboard/mcp-tokens

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Why Polydev?

Stop copy-pasting between ChatGPT, Claude, and Gemini. Get all their perspectives in your IDE with one request.

Metric	Result
SWE-bench Verified	74.6% Resolve@2
Cost vs Claude Opus	62% lower
Response time	10-40 seconds

"Different models have different blind spots. Combining their perspectives eliminates yours."

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How It Works

Your Agent → Polydev MCP → [GPT-5, Claude, Gemini, Grok] → Synthesized Answer

When your AI agent gets stuck, Polydev consults multiple frontier models simultaneously and returns their combined perspectives. One request, four expert opinions.

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Quick Start

Option 1: Use Hosted Service (Recommended)

Get started instantly at polydev.ai

Step 1: Install the MCP server

npx polydev-ai@latest

Step 2: Set your token (get it from polydev.ai/dashboard/mcp-tokens)

export POLYDEV_USER_TOKEN="pd_your_token_here"

Option 2: Self-Host with Your Own API Keys

Step 1: Clone and install

git clone https://github.com/polydev-ai/polydev.git

cd polydev && npm install

Step 2: Configure environment

cp .env.example .env.local

Step 3: Add your API keys to .env.local and run

npm run dev

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IDE Configuration

Claude Code

One command:

claude mcp add polydev -- npx -y polydev-ai@latest

Or add to ~/.claude.json:

{
  "mcpServers": {
    "polydev": {
      "command": "npx",
      "args": ["-y", "polydev-ai@latest"],
      "env": {
        "POLYDEV_USER_TOKEN": "pd_your_token_here"
      }
    }
  }
}

Cursor / Windsurf / Cline

Add to your MCP config (usually ~/.cursor/mcp.json or similar):

{
  "mcpServers": {
    "polydev": {
      "command": "npx",
      "args": ["-y", "polydev-ai@latest"],
      "env": {
        "POLYDEV_USER_TOKEN": "pd_your_token_here"
      }
    }
  }
}

OpenAI Codex CLI

Add to ~/.codex/config.toml:

[mcp_servers.polydev]
command = "npx"
args = ["-y", "polydev-ai@latest"]

[mcp_servers.polydev.env]
POLYDEV_USER_TOKEN = "pd_your_token_here"

[mcp_servers.polydev.timeouts]
tool_timeout = 180
session_timeout = 600

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Usage

Once connected, your agent can call:

{
  "tool": "get_perspectives",
  "arguments": {
    "prompt": "How should I refactor this authentication flow?"
  }
}

Or just mention "polydev" or "perspectives" in your prompt:

"Use polydev to debug this infinite loop"
"Get perspectives on: Should I use Redis or PostgreSQL for caching?"

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Use Your Existing CLI Subscriptions

Already paying for ChatGPT Plus, Claude Pro, or Gemini Advanced? Use those subscriptions directly through your CLI tools.

Subscription	CLI Tool	Setup
Claude Pro ($20/mo)	Claude Code	claude login
ChatGPT Plus ($20/mo)	Codex CLI	codex login
Gemini Advanced ($20/mo)	Gemini CLI	gemini login

Polydev can route requests through your authenticated CLI sessions — your subscription quota is used, no extra API costs.

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Self-Hosting

Requirements

• Node.js 18+
• PostgreSQL (or Supabase)
• API keys for the models you want to use

Environment Variables

Create a .env.local file:

# Database
NEXT_PUBLIC_SUPABASE_URL=your_supabase_url
NEXT_PUBLIC_SUPABASE_ANON_KEY=your_anon_key
SUPABASE_SERVICE_ROLE_KEY=your_service_role_key

# AI Providers (add the ones you want)
OPENAI_API_KEY=sk-...
ANTHROPIC_API_KEY=sk-ant-...
GOOGLE_API_KEY=...
XAI_API_KEY=...

Database Setup

cd supabase && supabase db push

Run

npm run dev

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Research

Our approach achieves 74.6% on SWE-bench Verified (Resolve@2), matching Claude Opus at 62% lower cost.

Approach	Resolution Rate	Cost/Instance
Claude Haiku (baseline)	64.6%	$0.18
+ Polydev consultation	66.6%	$0.24
Resolve@2 (best of both)	74.6%	$0.37
Claude Opus (reference)	74.4%	$0.97

Read the full paper →

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Project Structure

polydev/
├── src/                    # Next.js application
│   ├── app/               # App router pages & API routes
│   ├── components/        # React components
│   ├── hooks/             # Custom React hooks
│   └── lib/               # Utilities and services
├── mcp/                   # MCP server implementation
├── supabase/              # Database migrations
├── docs/                  # Documentation
└── public/                # Static assets

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Contributing

Contributions are welcome! Please read our contributing guidelines before submitting PRs.

# Fork the repository, then:
git clone https://github.com/YOUR_USERNAME/polydev.git

cd polydev && npm install

git checkout -b feature/amazing-feature

git commit -m 'Add amazing feature'

git push origin feature/amazing-feature

Then open a Pull Request.

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Links

• Website: polydev.ai
• Documentation: polydev.ai/docs
• npm: npmjs.com/package/polydev-ai
• Research: SWE-bench Paper

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License

MIT License - see LICENSE for details.

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<p align="center"> <b>Built by <a href="https://polydev.ai">Polydev AI</a></b><br> _{Multi-model consultation for better code} </p>