LocalFree

Signal MCP server

googlarz/signal-mcp

Signal messenger via a local signal-cli: send and receive messages, manage groups and contacts, search history, and handle attachments and reactions.

10 GitHub stars8 forks

Install Signal in Claude Code

This server doesn't publish a package to a registry, so follow the install steps in its README. Once it runs, register it with Claude Code:

Claude Code
claude mcp add signal -- <command to start the server>

Frequently asked questions

What does the Signal MCP server do?

Signal messenger via a local signal-cli: send and receive messages, manage groups and contacts, search history, and handle attachments and reactions.

Is the Signal MCP server free?

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Does Signal run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add Signal to Claude Code?

Follow the install steps in the project's README at https://github.com/googlarz/signal-mcp, then register it with "claude mcp add".

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