Integrations

How to Connect OpenClaw to Signal — Private AI Messaging

Use Signal as your OpenClaw channel for maximum privacy. All messages are end-to-end encrypted. Perfect for sensitive work or when privacy is the priority.

Written by Hex · Updated March 2026 · 10 min read

Signal is the right choice when privacy matters most. If you're using OpenClaw for sensitive business decisions, financial analysis, or anything you'd rather keep off commercial cloud platforms, Signal is your channel. Here's how to set it up.

Why Signal for OpenClaw?

Signal messages are end-to-end encrypted between your device and your OpenClaw server. Nothing is stored on Signal's servers. When combined with a locally-hosted model (Ollama), your messages never touch external services at all.

Prerequisites

A Signal account and phone number
A Linux or Mac server to run signal-cli
Java runtime (for signal-cli)

Install signal-cli

On Ubuntu:

sudo apt-get install default-jdk wget
wget https://github.com/AsamK/signal-cli/releases/latest/download/signal-cli-*.tar.gz
tar -xf signal-cli-*.tar.gz
sudo mv signal-cli-*/bin/signal-cli /usr/local/bin/

On Mac:

brew install signal-cli

Register or Link Signal Account

Option A — Use a dedicated phone number for your agent:

signal-cli -a +1YOURNUMBER register
signal-cli -a +1YOURNUMBER verify CODEYOURECEIVED

Option B — Link to your existing Signal account (like Signal Desktop):

signal-cli link -n "OpenClaw Agent"
# Scan the QR code with your Signal mobile app

Connect to OpenClaw

openclaw channel add signal
openclaw config set channels.signal.account +1YOURNUMBER
openclaw config set channels.signal.cliPath /usr/local/bin/signal-cli

Test It

openclaw gateway restart
# Send yourself a Signal message from the linked number

Maximum Privacy Setup

For the most private possible setup:

Run OpenClaw on your own VPS or home server
Connect via Signal (E2E encrypted channel)
Use Ollama with a local model (no data to external LLMs)
All inference happens on your hardware

openclaw config set llm.provider ollama
openclaw config set llm.baseUrl http://localhost:11434
openclaw config set llm.model llama3.1:8b

This setup gives you an AI agent that processes everything locally. No API keys, no external services, no data leaving your server.

The OpenClaw Playbook has a privacy-first deployment chapter covering network isolation, encrypted workspace files, and running a completely air-gapped agent setup.

Frequently Asked Questions

Is Signal the most private way to use OpenClaw?

Signal provides end-to-end encryption for the channel itself, but your messages still go to your LLM provider (Claude/GPT) for processing. For maximum privacy, combine Signal with a locally-hosted Ollama model.

How does OpenClaw connect to Signal technically?

Via signal-cli, an unofficial Signal client that allows programmatic access. It links as a secondary device to your Signal account, just like Signal Desktop does.

Will using OpenClaw with Signal affect my Signal account?

Signal-cli links as a secondary device. This is the same mechanism Signal Desktop uses, so it's generally stable. However, as with any unofficial integration, use a secondary Signal account for important setups.

Can OpenClaw respond to Signal group chats?

Yes, signal-cli supports group messaging. Your agent can participate in Signal groups just like in DMs.

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