majiayu000 Signal Messaging via MCP
Interact with Signal messenger through the local MCP server.
Setup
The Signal MCP server is configured in ~/.mcp.json:
{
"signal": {
"command": "cargo",
"args": ["run", "--release", "--example", "signal-server-stdio"],
"cwd": "/Users/alice/signal-mcp",
"env": {
"RUST_LOG": "signal_mcp=info"
}
}
}
Prerequisites
Clone and build the signal-mcp server:
cd /Users/alice/signal-mcp cargo build --release --example signal-server-stdioRegister/link your Signal account with the server
Usage
Use read_mcp_resource to interact with Signal:
{"server": "signal", "uri": "signal://..."}
Capabilities
- Send messages to contacts or groups
- Read incoming messages
- List conversations
- Handle attachments
Troubleshooting
- Ensure the server starts:
cargo run --release --example signal-server-stdio - Check logs:
RUST_LOG=signal_mcp=debug - Verify Signal account is registered/linked
- Restart Amp after config changes