signal-mcp

Signal MCP is a Model Context Protocol server allowing AI agents to send and receive messages using Signal through the signal-cli. It supports async message handling and logging.

Signal MCP

An MCP integration for signal-cli that enables AI agents to interact with Signal messaging service.

Features

Send messages to Signal users
Send messages to Signal groups
Receive and parse incoming messages
Async support with timeout handling
Detailed logging

Prerequisites

Requires signal-cli installation.

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