googlarz/signal-mcp

What it does

googlarz/signal-mcp is a Model Context Protocol (MCP) server that provides full integration with Signal messenger. It enables AI assistants to send and receive messages, manage groups and contacts, search message history, handle attachments, and process reactions—all running locally without relying on third-party servers.

How to set up

Installation requires Signal CLI to be installed on your system. Clone the repository from GitHub, install dependencies, configure your Signal account through the CLI, and then connect it as an MCP server to your AI platform (Claude, ChatGPT, or other supported clients). Detailed setup instructions are available in the project repository.

Key features

• Send and receive Signal messages programmatically
• Create, manage, and interact with Signal groups
• Manage contacts and contact information
• Search and retrieve message history
• Handle file attachments and media
• Process message reactions
• Runs entirely locally via Signal CLI—no external servers required
• Available as both MCP server and command-line interface