OpenClaw Signal Integration
Privacy-first AI assistant for Signal with end-to-end encryption
Signal is the gold standard for private messaging, used by privacy advocates, journalists, activists, and security-conscious individuals worldwide. With end-to-end encryption as the default and a non-profit governance model, Signal represents the pinnacle of secure communication. OpenClaw brings AI capabilities to Signal without compromising the privacy guarantees you depend on.
Setting up AI on Signal is challenging because Signal intentionally doesn't offer a traditional bot API to protect user privacy. OpenClaw solves this through signal-cli, an unofficial but widely-trusted command-line interface for Signal. This means your AI assistant runs entirely on your device, processing messages locally before any content touches an AI provider.
For privacy-conscious users, OpenClaw's Signal integration shines when paired with local AI models via Ollama or LM Studio. This creates a completely offline AI assistant - no cloud services, no data leaks, no third-party access. Your conversations remain encrypted end-to-end, and the AI processing happens entirely within your control.
Key Features
End-to-End Encrypted
All messages are encrypted by Signal's protocol. OpenClaw decrypts locally and processes on your device only.
Local AI Support
Use local models (Ollama, LLaMA) for completely offline AI assistance with zero cloud dependencies.
Group Message Support
Add OpenClaw to Signal groups for shared AI assistance while maintaining group encryption.
Disappearing Messages
Respect Signal's disappearing message timers - OpenClaw doesn't store messages beyond configured retention.
Linked Device Support
Run OpenClaw as a linked device to your primary Signal account without affecting your phone usage.
Minimal Metadata
Signal collects minimal metadata. OpenClaw follows this principle and doesn't add telemetry or tracking.
Setup Guide
Install signal-cli (Signal command-line interface)
brew install signal-cli # macOS; see signal-cli docs for Linux/WindowsRegister a Signal number or link to existing account
signal-cli -u +1234567890 registerVerify registration with SMS code
signal-cli -u +1234567890 verify CODEInstall OpenClaw
npm install -g openclaw@latestAdd Signal channel
openclaw channels add signal --number +1234567890Start the gateway
openclaw gatewayConfiguration Options
| Option | Type | Default | Description |
|---|---|---|---|
| signal.number | string | "" | Your Signal phone number (with country code) |
| signal.allowedContacts | array | [] | Phone numbers allowed to use the bot (empty = none, for security) |
| signal.trustAllKeys | boolean | false | Auto-trust new safety numbers (enable for convenience, reduce for security) |
Use Cases
Secure Personal Assistant
Get AI help with sensitive topics - legal questions, health information, financial planning - with maximum privacy.
Journalist Research Tool
Verify facts, search archived messages, and organize source information without exposing sources to cloud services.
Activist Coordination
Coordinate secure communications with AI-assisted message drafting and event planning in encrypted group chats.
Healthcare Communication
Discuss HIPAA-sensitive information with an AI assistant that processes data locally and leaves no cloud trail.
Frequently Asked Questions
Is this officially supported by Signal?
No. OpenClaw uses signal-cli, an unofficial but widely-used open-source Signal client. Signal Foundation doesn't provide an official bot API to protect user privacy. Use at your own discretion.
Can I use my existing Signal number?
Yes, but you need to link OpenClaw as a separate device to your existing Signal account. This is similar to how Signal Desktop works - your phone remains the primary device and OpenClaw acts as a linked device.
Does this compromise Signal's security?
No. OpenClaw uses Signal's official encryption protocol through signal-cli. Messages are decrypted locally on your device, just like they would be in the Signal app. However, your AI provider (if using cloud AI) will see message content, so use local models for maximum privacy.
Can I use a dedicated Signal number for the bot?
Yes, and this is recommended. Register a new number with Signal specifically for OpenClaw to keep your personal Signal account separate from the bot.
What happens to disappearing messages?
OpenClaw respects Signal's disappearing message timers. Messages are processed immediately and not stored beyond the configured retention period. For maximum privacy, set signal.messageRetention to 0 to disable all logging.
Related Guides
Ready to Get Started?
Install OpenClaw and connect to Signal in just 20 minutes. Free, open-source, and runs on your own infrastructure.