Anthropic Bridge - OpenRouter Proxy Service

Translation Service: Anthropic API format → OpenAI format → OpenRouter

Convert Anthropic's message format to OpenAI's chat completions format and route to OpenRouter for multi-model access.

🚀 Deployment Options

✅ LXC Container (Proxmox) - RECOMMENDED FOR PRODUCTION

Status: ✅ ACTIVE - All 6 models verified working Documentation: docs/LXC_DEPLOYMENT.md

Quick Access:

# Health check
curl http://localhost:3000/health

# Test with Claude CLI
export ANTHROPIC_BASE_URL="http://localhost:3000"
claude --settings config/glm.json -p "Your query"

Service Management (on Proxmox host):

# Restart service
pct exec <container-id> -- systemctl restart anthropic-bridge

# View logs
pct exec <container-id> -- journalctl -u anthropic-bridge -f

🐳 Docker - WORKS WITH LIMITATIONS

Status: ✅ Container works internally, ⚠️ Network access from host may have IPv6 issues on WSL2 Documentation: docs/DOCKER_LXC_DEPLOYMENT.md

Deploy:

docker-compose up -d

Test from inside container:

docker exec anthropic-bridge curl http://localhost:3000/health

💻 Native - DEVELOPMENT

Status: ✅ All 6 models verified working

Start:

./scripts/start-anthropic-bridge.sh

Or manually:

cd smart-router
export OPENROUTER_API_KEY="your-key-here"
node src/anthropic-bridge.js

🎯 Supported Models (6 Total)

All models verified working:

1. GLM 4.6 Exacto - z-ai/glm-4.6:exacto
2. Deepseek Chat - deepseek/deepseek-chat
3. Qwen 2.5 Coder 32B - qwen/qwen-2.5-coder-32b-instruct
4. GPT-4o - openai/gpt-4o
5. Claude Sonnet 4 - anthropic/claude-sonnet-4
6. Gemini 2.5 Pro - google/gemini-2.5-pro-preview

📁 Project Structure

smart-router/
├── src/
│   └── anthropic-bridge.js         # Main service (Anthropic to OpenAI translator)
├── config/                          # Claude CLI configuration files
│   ├── glm.json                    # GLM 4.6 Exacto
│   ├── deepseek-v3.1-terminus.json # Deepseek Chat
│   ├── qwen3-coder-plus.json       # Qwen 2.5 Coder 32B
│   ├── gpt-5-pro.json              # GPT-4o
│   ├── claude-sonnet-4.5.json      # Claude Sonnet 4
│   └── gemini-2.5-pro.json         # Gemini 2.5 Pro
├── scripts/
│   └── start-anthropic-bridge.sh   # Native startup script
├── docs/
│   ├── LXC_DEPLOYMENT.md           # LXC production deployment (RECOMMENDED)
│   ├── DOCKER_LXC_DEPLOYMENT.md    # Docker deployment guide
│   └── CLI_TESTING.md              # Claude CLI testing guide
├── .env                             # OpenRouter API key
├── package.json
└── README.md

🔧 Configuration

Environment Variables

Required:

• OPENROUTER_API_KEY - Your OpenRouter API key from https://openrouter.ai/

Optional:

• PORT - Server port (default: 3000)
• NODE_ENV - Environment (development/production)

Claude CLI Configuration

Each model has a configuration file in config/ directory:

{
  "env": {
    "ANTHROPIC_BASE_URL": "http://localhost:3000",
    "ANTHROPIC_MODEL": "z-ai/glm-4.6:exacto"
  },
  "model": "z-ai/glm-4.6:exacto"
}

Usage:

# Use GLM 4.6
claude --settings config/glm.json -p "Your query"

# Use Deepseek
claude --settings config/deepseek-v3.1-terminus.json -p "Your query"

# Use Claude Sonnet 4
claude --settings config/claude-sonnet-4.5.json -p "Your query"

📊 Service Architecture

┌─────────────┐     Anthropic      ┌──────────────────┐     OpenAI       ┌────────────┐
│ Claude CLI  │────────────────────▶│ anthropic-bridge │──────────────────▶│ OpenRouter │
│             │   Format Request   │ (Translation)     │   Format Request │            │
└─────────────┘                     └──────────────────┘                   └────────────┘
                                            │
                                            ▼
                                    ┌──────────────┐
                                    │ Model Router │
                                    └──────────────┘
                                            │
                    ┌───────────────────────┼───────────────────────┐
                    ▼                       ▼                       ▼
                ┌─────┐               ┌──────────┐            ┌──────────┐
                │ GLM │               │ Deepseek │            │ Claude   │
                │GPT-4│               │ Qwen     │            │ Gemini   │
                └─────┘               └──────────┘            └──────────┘

📈 Monitoring

Service Logs (LXC)

# Real-time logs
pct exec <container-id> -- journalctl -u anthropic-bridge -f

# Last 50 lines
pct exec <container-id> -- journalctl -u anthropic-bridge -n 50

# Follow routing activity
pct exec <container-id> -- journalctl -u anthropic-bridge -f | grep -E 'Forwarding|Response'

Health Check

curl http://localhost:3000/health

Expected response:

{
  "status": "healthy",
  "service": "Smart Router",
  "provider": "OpenRouter",
  "mode": "anthropic-to-openai-translator"
}

🔐 Security

• API key stored in .env file (not committed to git)
• Service runs in isolated container
• Unprivileged container (non-root user namespace)
• Internal network only (no external exposure by default)

📝 License

MIT

👤 Author

Marco Del Pin - marco.delpin@gmail.com

🤝 Contributing

1. Fork the repository
2. Create your feature branch (git checkout -b feature/amazing-feature)
3. Commit your changes (git commit -m 'Add some amazing feature')
4. Push to the branch (git push origin feature/amazing-feature)
5. Open a Pull Request

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Status: ✅ PRODUCTION READY - All 6 models operational Last Updated: 2025-11-06