Skip to main content
Glama
enesjakozh
rymurr

Signal MCP

by rymurr
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
Local

Signal MCP

An MCP integration for signal-cli that allows AI agents to send and receive Signal messages.

Features

  • Send messages to Signal users

  • Send messages to Signal groups

  • Receive and parse incoming messages

  • Async support with timeout handling

  • Detailed logging

Related MCP server: mcp-whatsapp

Prerequisites

This project requires signal-cli to be installed and configured on your system.

Installing signal-cli

  1. Install signal-cli: Follow the official installation instructions

  2. Register your Signal account:

    signal-cli -u YOUR_PHONE_NUMBER register

  3. Verify your account with the code received via SMS:

    signal-cli -u YOUR_PHONE_NUMBER verify CODE_RECEIVED

For more detailed setup instructions, see the signal-cli documentation.

Installation

pip install -e .
# or use uv for faster installation
uv pip install -e .

Usage

Run the MCP server:

./main.py --user-id YOUR_PHONE_NUMBER [--transport {sse|stdio}]

API

Tools Available

  • send_message_to_user: Send a direct message to a Signal user

  • send_message_to_group: Send a message to a Signal group

  • receive_message: Wait for and receive messages with timeout support

Development

This project uses:

  • MCP for agent-API integration

  • Modern Python async patterns

  • Type annotations throughout

This server cannot be deployed

One endpoint for every MCP toolRayrun runs every MCP server behind one URL and holds the credentials. Each call is decided per client, tool, and argument, then recorded.ray.runAd

Maintenance

ActivityInactive
ResponsivenessUnresponsive

Resources

Related MCP Connectors

Related MCP Servers

  • signal-mcp

    daanrongen
    F
    license
    Not graded
    quality
    C
    maintenance
    MCP server for Signal via signal-cli that enables sending and receiving messages, managing contacts and groups, and reacting over stdio.
    5 npm
    -

  • mcp-whatsapp

    gridmint
    A
    license
    Not graded
    quality
    C
    maintenance
    MCP server that connects AI agents to WhatsApp using the multi-device API, enabling messaging, group management, and more as a regular user.
    3 npm
    MIT

  • signal-cli-mcp

    jiridudekusy
    A
    license
    A
    quality
    D
    maintenance
    An MCP server that lets AI assistants propose sending Signal messages, but nothing is ever sent without explicit human approval.
    3
    11 npm
    MIT

  • signal-mcp-server

    Transmitt0r
    A
    license
    Not graded
    quality
    B
    maintenance
    MCP server that wraps a running signal-cli daemon's JSON-RPC API as MCP tools, enabling list contacts, groups, conversations, read and send messages, and react to messages on Signal.
    17 npm
    MIT