Video coming soon…

💬 Setup Signal REST API — Send Signal Messages from Your Scripts

Deploy the Signal REST API on Ubuntu with Docker — a REST wrapper around signal-cli that lets your apps and scripts send and receive Signal messages through a simple HTTP API, on port 8225.

⚠️ This script is provided for demo and testing purposes only. Not intended for production use.

📦 Resources & Setup Scripts

Grab the automated bash script from GitHub to follow along with the video.

Automated install script — one command deploys the Signal REST API on port 8225. Link it to your Signal account as a secondary device by scanning a QR code, then send messages over HTTP.
View on GitHub

Quick Install:

wget https://raw.githubusercontent.com/mhmdali94/Docker/main/communication/signal-api/signal-api-ubuntu.sh
chmod +x signal-api-ubuntu.sh
sudo bash signal-api-ubuntu.sh

Tutorial Steps

1 Download the Script

wget https://raw.githubusercontent.com/mhmdali94/Docker/main/communication/signal-api/signal-api-ubuntu.sh

2 Make it Executable

chmod +x signal-api-ubuntu.sh

3 Run the Installer

The script installs Docker if needed and starts the Signal REST API on port 8225, wrapping signal-cli, with its account data stored in a mounted volume so your device link survives restarts.

sudo bash signal-api-ubuntu.sh

4 Link Your Signal Account

Open the QR-code link endpoint in your browser, then in the Signal app go to Settings → Linked Devices → Link New Device and scan it to connect this API as a secondary device:

http://<your-server-ip>:8225/v1/qrcodelink?device_name=server

Ports Used

PortPurpose
8225REST API (host → container 8080)
./dataLinked-account data — holds the device-link keys
device linkLinks to an existing Signal account via QR (like Signal Desktop)

Overview

Why Use It

When You Need It

    Who Should Use It

      Real Use Cases

        Main Features

          How to Use After Installation

            Security Best Practices

              Ports and Firewall Notes

              Backup and Maintenance

                Common Mistakes

                  Troubleshooting

                    Alternatives

                    When Not to Use It

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