🚀 Antigravity Claude Code Proxy

Use Claude Code CLI with Gemini, GPT-5, Grok, and 20+ AI models

A production-ready multi-provider AI gateway with automatic load balancing,
real-time status bar integration, and beautiful monitoring dashboard

What is this? • Features • Quick Start • Models • Dashboard • Status Bar

📖 What is this?

Antigravity Claude Proxy is a local proxy server that enables Claude Code CLI to use multiple AI providers:

How it Works

┌─────────────────┐      ┌──────────────────────┐      ┌─────────────────────┐
│                 │      │                      │      │                     │
│  Claude Code    │─────▶│  Antigravity Proxy   │─────▶│  Google AI (Gemini) │
│  CLI/Extension  │      │  localhost:8080      │      │  + Perplexity       │
│                 │      │                      │      │  + More providers   │
└─────────────────┘      └──────────────────────┘      └─────────────────────┘

🖼️ Showcase

Real-time dashboard with multi-account load balancing and usage stats

Click status bar to see Claude & Gemini quotas with reset times

One-click model switching between Flash, Pro, Opus, Sonnet, and more

Live model indicator in your IDE status bar (⚡ Flash, 💎 Pro, 🎭 Opus)

✨ Features

🎯 Core Capabilities

🧠 Smart Features

• 🔄 Smart Routing: Extension dropdown Opus/Haiku/Default pass-through, Custom uses dashboard
• ⚡ Agentic Fallback: Chat-only models auto-switch to agentic models for file operations
• 📊 Usage Tracking: Per-model and per-account statistics
• 🛡️ Rate Limit Recovery: Automatically rotates to healthy accounts

🚀 Quick Start

Prerequisites

• Node.js 18+
• PM2 (process manager) - npm install -g pm2
• Antigravity desktop app (Download) or VS Code
• Claude Code CLI (npm install -g @anthropic-ai/claude-code)

Installation

# Clone the repository
git clone https://github.com/ai-dev-2024/Antigravity-Claude-Code-Proxy.git
cd Antigravity-Claude-Code-Proxy/Antigravity-Claude-Code-Proxy

# Install dependencies
npm install

# Start the proxy (runs as persistent background service)
pm2 start src/server.js --name antigravity-proxy
pm2 save

Configure Environment

Windows (PowerShell):

[Environment]::SetEnvironmentVariable("ANTHROPIC_BASE_URL", "http://localhost:8080", "User")
[Environment]::SetEnvironmentVariable("ANTHROPIC_API_KEY", "antigravity-proxy", "User")

macOS/Linux:

echo 'export ANTHROPIC_BASE_URL="http://localhost:8080"' >> ~/.bashrc
echo 'export ANTHROPIC_API_KEY="antigravity-proxy"' >> ~/.bashrc
source ~/.bashrc

Auto-Start on Windows Login (Optional)

Note: By default, the proxy only starts when you open Antigravity with the extension enabled. For system-wide startup on Windows login, run:

cd scripts\setup
SETUP_STARTUP.bat

This will:

• Register the proxy with PM2
• Create a Windows startup script
• Proxy starts automatically on Windows login

Start Using!

claude

Note: The proxy runs in the background via PM2. You can close any terminal or IDE window without affecting it. To check status: pm2 list. To stop: pm2 stop antigravity-proxy.

🤖 Models

⚡ Agentic Models (Full Capabilities)

🔍 Search Models (Chat + Web Search)

Model Switching

# In Claude Code chat:
/model flash        # Switch to Gemini 3 Flash
/model pro          # Switch to Gemini 3 Pro
/model grok         # Switch to Grok (Perplexity)

# Or use dashboard:
# Open http://localhost:8080/dashboard

📊 Dashboard

Access the dashboard at http://localhost:8080/dashboard

Features:

• Account Monitor: See all accounts, their status, and remaining quota
• Model Switcher: Quick dropdown to change active model
• Usage Statistics: Track requests per model
• Health Status: Know when accounts are rate-limited

📊 Status Bar Extension (v3.9+)

The status bar extension shows your current model and quota information in real-time:

Status Bar Icons

Quota Popup (Click Account Icon)

• Model Quotas: Overall Claude & Gemini percentages with visual bars
• Per-Account Breakdown: All connected accounts with individual quotas
• Smart Sorting: Accounts with highest Claude quota shown first
• Reset Times: Know exactly when your quota resets

Features

• One-Click Model Switching: Click model name to switch instantly
• Real-Time Updates: 5-second polling for accurate quota display
• Offline Detection: Shows "Offline" in red when proxy is down
• Open Dashboard: Quick link to full web dashboard

🔌 API Reference

📁 Project Structure

Antigravity-Claude-Code-Proxy/
├── src/
│   ├── server.js          # Main Express server
│   ├── account-manager.js # Multi-account handling
│   ├── constants.js       # Model aliases & config
│   └── public/
│       └── dashboard.html # Web dashboard
├── docs/
│   └── images/            # Showcase images
├── SECURITY.md            # Security policy
├── CHANGELOG.md           # Version history
└── package.json           # v2.5.0

🔒 Security

• No credentials in code: All sensitive data stored locally
• Comprehensive .gitignore: Accounts, tokens, logs excluded
• npm audit: 0 vulnerabilities
• Local-only: Runs on localhost by default

See SECURITY.md for full security policy.

📋 Version History

See CHANGELOG.md for detailed history.

📜 License

MIT License - See LICENSE for details.

Made with ❤️ for the Claude Code community
Report Bug • Request Feature

❤️ Support This Project

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