Overview

This guide walks you through connecting Google Gemini to Signal using OpenClaw. You'll learn how to configure authentication, set up the channel, and deploy your AI assistant.

Google Gemini Features

  • 1M token context window
  • Multimodal understanding
  • Fast inference
  • Competitive pricing

Signal Capabilities

  • Direct messages
  • Group chats
  • Media support
  • Reactions

Step 1: Configure Google Gemini

Google AI API key

  1. Go to ai.google.dev
  2. Create or select a project
  3. Enable the Gemini API
  4. Generate an API key
  5. Set GOOGLE_API_KEY environment variable

Environment variable: GOOGLE_API_KEY

Step 2: Configure Signal

  1. Install signal-cli on your system
  2. Register or link a Signal account
  3. Start signal-cli daemon
  4. Configure signal in openclaw.json
  5. Start OpenClaw gateway

Step 3: Combined Configuration

Add both configurations to your openclaw.json:

{
  "agents": {
    "defaults": {
      "model": {
        "primary": "google-gemini/gemini-2.0-flash-exp"
      }
    }
  },
  "models": {
    "providers": {
      "google-gemini": {
  "models": {
    "providers": {
      "google-gemini": {
        "apiKey": "${GOOGLE_API_KEY}
    }
  },
  "channels": {
    "signal": {
      "account": "+15551234567",
      "dmPolicy": "pairing",
      "allowFrom": ["+15559876543"]
    }
  }
}
}

Step 4: Start the Gateway

# Start the gateway
openclaw gateway start

# Check status
openclaw status

# View logs
openclaw logs --follow

Access Control

Signal supports the following access control policies:

DM Policies

Policy Description
allowlist Only senders in allowFrom list are processed
pairing Unknown senders receive a pairing code; admin must approve
open All DMs are processed (requires allowFrom: ["*"])

Group Policies

Policy Description
allowlist Only groups in groupAllowFrom are processed
open All groups are processed

Deploy Options

Choose how to deploy your Google Gemini + Signal setup:

Local Deployment

Run on your personal machine with local-only access

View Guide →

VPS Deployment

Always-on deployment on a Linux VPS

View Guide →

Cloud Deployment

Managed container deployment on Fly.io or similar

View Guide →

Docker Deployment

Containerized deployment with Docker

View Guide →

Frequently Asked Questions

How do I set up Google Gemini with Signal?
Configure Google Gemini as your AI provider and enable Signal as a channel in openclaw.json. The gateway routes Signal messages to Google Gemini for processing automatically.
Is Google Gemini a good choice for Signal bots?
Google Gemini works great with Signal. Extremely large context window and Very cost-effective make it well-suited for Privacy-focused assistant and Secure team communication.