OpenClaw Integration

Connect OpenClaw/ClawdBot to Antigravity Claude Proxy for AI messaging

What is OpenClaw?

OpenClaw (formerly ClawdBot/Moltbot) is an AI agent gateway that connects to messaging apps like Telegram, WhatsApp, Discord, Slack, and iMessage. You can configure it to use this proxy for Claude and Gemini models.

Prerequisites

Before you begin, ensure you have:

• OpenClaw installed globally
• Antigravity Claude Proxy running on port 8080
• At least one Google account linked to the proxy

1. Install OpenClaw

   Install OpenClaw globally using npm:

   npm install -g openclaw@latest
   
2. Start the Proxy

   Make sure Antigravity Claude Proxy is running:

   antigravity-claude-proxy start
   

   The proxy should be running on http://127.0.0.1:8080 by default.

3. Configure OpenClaw

   Edit your OpenClaw configuration file:

   macOS/Linux

   ~/.openclaw/openclaw.json
   

   Add the following configuration:

   {
     "models": {
       "mode": "merge",
       "providers": {
         "antigravity-proxy": {
           "baseUrl": "http://127.0.0.1:8080",
           "apiKey": "test",
           "api": "anthropic-messages",
           "models": [
             {
               "id": "gemini-3-flash",
               "name": "Gemini 3 Flash",
               "reasoning": true,
               "input": ["text", "image"],
               "cost": { "input": 0, "output": 0, "cacheRead": 0, "cacheWrite": 0 },
               "contextWindow": 1048576,
               "maxTokens": 65536
             },
             {
               "id": "gemini-3.1-pro-high",
               "name": "Gemini 3.1 Pro High",
               "reasoning": true,
               "input": ["text", "image"],
               "cost": { "input": 0, "output": 0, "cacheRead": 0, "cacheWrite": 0 },
               "contextWindow": 1048576,
               "maxTokens": 65536
             },
             {
               "id": "claude-sonnet-4-5",
               "name": "Claude Sonnet 4.5",
               "reasoning": false,
               "input": ["text", "image"],
               "cost": { "input": 0, "output": 0, "cacheRead": 0, "cacheWrite": 0 },
               "contextWindow": 200000,
               "maxTokens": 16384
             },
             {
               "id": "claude-sonnet-4-5-thinking",
               "name": "Claude Sonnet 4.5 Thinking",
               "reasoning": true,
               "input": ["text", "image"],
               "cost": { "input": 0, "output": 0, "cacheRead": 0, "cacheWrite": 0 },
               "contextWindow": 200000,
               "maxTokens": 16384
             },
             {
               "id": "claude-opus-4-6-thinking",
               "name": "Claude Opus 4.6 Thinking",
               "reasoning": true,
               "input": ["text", "image"],
               "cost": { "input": 0, "output": 0, "cacheRead": 0, "cacheWrite": 0 },
               "contextWindow": 200000,
               "maxTokens": 32000
             }
           ]
         }
       }
     },
     "agents": {
       "defaults": {
         "model": {
           "primary": "antigravity-proxy/gemini-3-flash",
           "fallbacks": ["antigravity-proxy/gemini-3.1-pro-high"]
         },
         "models": {
           "antigravity-proxy/gemini-3-flash": {}
         }
       }
     }
   }
   

   Use 127.0.0.1 instead of localhost in the baseUrl. This ensures the connection stays on the loopback interface and avoids potential DNS resolution issues.

4. Start OpenClaw Gateway

   In a new terminal, start the OpenClaw gateway:

   openclaw gateway
   

   OpenClaw will now use the proxy models you configured.

5. Verify Configuration

   Check that the models are available:

   # List all available models
   openclaw models list
   
   # Check gateway status
   openclaw status
   

   You should see models prefixed with antigravity-proxy/ in the list.

Model Selection

Switch Default Model

To change the default model for all conversations:

openclaw models set antigravity-proxy/claude-opus-4-6-thinking

Or edit the model.primary field in your openclaw.json config file.

Available Models

All models configured in the proxy are available with the antigravity-proxy/ prefix:

• antigravity-proxy/gemini-3-flash - Fast Gemini model with reasoning
• antigravity-proxy/gemini-3.1-pro-high - High-quality Gemini model
• antigravity-proxy/claude-sonnet-4-5 - Claude Sonnet without reasoning
• antigravity-proxy/claude-sonnet-4-5-thinking - Claude Sonnet with reasoning
• antigravity-proxy/claude-opus-4-6-thinking - Claude Opus with reasoning

Troubleshooting

Connection Refused

Make sure the proxy is running before starting OpenClaw:

curl http://127.0.0.1:8080/health

If this fails, start the proxy:

antigravity-claude-proxy start

Models Not Showing

If models aren’t appearing in OpenClaw:

1. Verify the config file is valid JSON (no trailing commas, proper quotes)
2. Check that mode is set to "merge" (not "replace" unless you want to override all built-in models)
3. Restart the OpenClaw gateway after config changes:

# Stop gateway (Ctrl+C if running in foreground)
# Then restart
openclaw gateway

VPS Security Warning

If running on a VPS, ensure the proxy only binds to localhost:

# Default binds to 0.0.0.0 (all interfaces) - exposed to network!
antigravity-claude-proxy start

# Explicitly bind to localhost only (recommended for VPS)
HOST=127.0.0.1 antigravity-claude-proxy start

By default, the proxy binds to 0.0.0.0 which exposes it to all network interfaces. On a VPS, always use HOST=127.0.0.1 to restrict access to localhost only, or ensure you have proper authentication (API_KEY env var) and firewall rules in place.

Configuration Reference

Configuration Mode

The mode field in the models configuration determines how OpenClaw handles custom models:

• "merge" - Adds proxy models alongside built-in OpenClaw models
• "replace" - Replaces all built-in models with only your custom configuration

Model Properties

Each model in the configuration supports these properties:

Property	Type	Description
id	string	Model identifier used in API calls
name	string	Display name shown in OpenClaw
reasoning	boolean	Whether the model supports reasoning/thinking
input	array	Supported input types ("text", "image")
cost	object	Token costs (all 0 for proxy models)
contextWindow	number	Maximum context window size
maxTokens	number	Maximum output tokens

Further Reading

OpenClaw Documentation

Official OpenClaw documentation

OpenClaw Configuration

Configuration reference

Load Balancing

Proxy load balancing strategies

Proxy Configuration

Advanced proxy settings