Signal Messaging (via signal-cli)
Send Signal messages and read replies through your own signal-cli JSON-RPC daemon (unofficial).
MCP server · by joshuawowk
About
Signal Messaging (via signal-cli) is an MCP server published by joshuawowk. Marketplaces we read that list it: 1 (Official MCP Registry). We first saw it on 2026-10-20 and have recorded no change since. As of our marketplace pass on 2026-11-10.
What it asks for
- Runs on your machine
- Settings: 8
Requires: SIGNAL_DEFAULT_RECIPIENT, SIGNAL_SENDER
What it declares, asks for and runs, in full
Only install plugins from developers you trust. We list what marketplaces publish and do not test plugins.
Works with
- Claude Code
- Codex
- Cursor
- VS Code
- Copilot CLI
From the marketplaces that list it and the MCP transport it declares, as each client documents them. We do not test plugins.
Connect
Commands and configs built only from what its marketplaces declare. We do not run them for you and do not test plugins.
As a local MCP server: Docker image
Built from what Official MCP Registry declares.
claude mcp add --env "SIGNAL_DEFAULT_RECIPIENT=<YOUR_SIGNAL_DEFAULT_RECIPIENT>" --env "SIGNAL_SENDER=<YOUR_SIGNAL_SENDER>" --transport stdio signal-mcp -- docker run -i --rm -e SIGNAL_DEFAULT_RECIPIENT -e SIGNAL_SENDER -i --add-host host.docker.internal:host-gateway ghcr.io/joshuawowk/signal-mcp:1.0.1 python3 /app/server.py[mcp_servers.signal-mcp]
command = "docker"
args = ["run", "-i", "--rm", "-e", "SIGNAL_DEFAULT_RECIPIENT", "-e", "SIGNAL_SENDER", "-i", "--add-host", "host.docker.internal:host-gateway", "ghcr.io/joshuawowk/signal-mcp:1.0.1", "python3", "/app/server.py"]
[mcp_servers.signal-mcp.env]
SIGNAL_DEFAULT_RECIPIENT = "<YOUR_SIGNAL_DEFAULT_RECIPIENT>"
SIGNAL_SENDER = "<YOUR_SIGNAL_SENDER>"{
"mcpServers": {
"signal-mcp": {
"command": "docker",
"args": [
"run",
"-i",
"--rm",
"-e",
"SIGNAL_DEFAULT_RECIPIENT",
"-e",
"SIGNAL_SENDER",
"-i",
"--add-host",
"host.docker.internal:host-gateway",
"ghcr.io/joshuawowk/signal-mcp:1.0.1",
"python3",
"/app/server.py"
],
"env": {
"SIGNAL_DEFAULT_RECIPIENT": "<YOUR_SIGNAL_DEFAULT_RECIPIENT>",
"SIGNAL_SENDER": "<YOUR_SIGNAL_SENDER>"
}
}
}
}docker run -i --rm -e "SIGNAL_DEFAULT_RECIPIENT=<YOUR_SIGNAL_DEFAULT_RECIPIENT>" -e "SIGNAL_SENDER=<YOUR_SIGNAL_SENDER>" -i --add-host host.docker.internal:host-gateway ghcr.io/joshuawowk/signal-mcp:1.0.1 python3 /app/server.pyReplace the values in angle brackets with your own. We show the names of the settings, never values.
Optional arguments it also declares: --stdio.
Optional settings it also lists: SIGNAL_INBOX_PATH, SIGNAL_INBOX_RETENTION_DAYS, SIGNAL_POLL_INTERVAL, SIGNAL_RPC_URL, SIGNAL_TCP_HOST, SIGNAL_TCP_PORT.
Where it is published
| Marketplace | Status | Version | Figures | Verified | First seen |
|---|---|---|---|---|---|
| Official MCP Registry (Open the registry record) | Listed | 1.0.1 | Forks (GitHub): 0 Stars (GitHub): 0 |
Not marked |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
What changed
- Became a product we track
- Official MCP Registry: appeared
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