SERVER

Signal Messaging (via signal-cli)

Rank #30,523

io.github.joshuawowk/signal-mcp

Send Signal messages and read replies through your own signal-cli JSON-RPC daemon (unofficial).

1 version

by joshuawowk (2 servers)View repository ↗

First listed

Sep 25, 2026

Last publish date

Oct 20, 2026

PURPOSE

What you can do with Signal Messaging (via signal-cli)

Signal Messaging (via signal-cli) is a Model Context Protocol (MCP) server published by joshuawowk. It ranks #30,523 of 176,402 active servers on MCP Toplist. Signal Messaging (via signal-cli) is listed across 2 registries — Official MCP and Glama, with 1 tracked version. It was first listed on Sep 25, 2026 and most recently updated on Oct 20, 2026.

Not verifiedMCP Toplist has not yet written a checked profile for this server, so the paragraph above is assembled from registry data only. The repository README is the authority on what it does.

CAPABILITIES AND LIMITATIONS

What Signal Messaging (via signal-cli) can and cannot do

Not verifiedMCP Toplist has not catalogued this server's tools or limitations. The repository README lists them.

REQUIREMENTS

What you need before using Signal Messaging (via signal-cli)

DeclaredNo credentialsNo credentials declared

The registry listing declares no required environment variables or authentication. This is declared metadata, not a verified install — the repository README is the authority.

Declared by Glama, last synced Nov 14, 2026. Not independently verified by MCP Toplist.

Declared in the registry install config

SIGNAL_SENDER · required
SIGNAL_DEFAULT_RECIPIENT · required
SIGNAL_RPC_URL · optional
SIGNAL_TCP_HOST · optional
SIGNAL_TCP_PORT · optional
SIGNAL_INBOX_PATH · optional
SIGNAL_POLL_INTERVAL · optional
SIGNAL_INBOX_RETENTION_DAYS · optional

INSTALLATION AND FIRST TASK

Connect Signal Messaging (via signal-cli) and confirm it works

Docker image

claude mcp add signal-mcp -e "SIGNAL_SENDER=<your SIGNAL_SENDER>" -e "SIGNAL_DEFAULT_RECIPIENT=<your SIGNAL_DEFAULT_RECIPIENT>" -e "SIGNAL_RPC_URL=<your SIGNAL_RPC_URL>" -e "SIGNAL_TCP_HOST=<your SIGNAL_TCP_HOST>" -e "SIGNAL_TCP_PORT=<your SIGNAL_TCP_PORT>" -e "SIGNAL_INBOX_PATH=<your SIGNAL_INBOX_PATH>" -e "SIGNAL_POLL_INTERVAL=<your SIGNAL_POLL_INTERVAL>" -e "SIGNAL_INBOX_RETENTION_DAYS=<your SIGNAL_INBOX_RETENTION_DAYS>" -- docker run -i --rm --add-host host.docker.internal:host-gateway ghcr.io/joshuawowk/signal-mcp:1.0.1 python3 /app/server.py

Replace each placeholder with your own value before saving.

Docker image

[mcp_servers.signal-mcp]
command = "docker"
args = ["run", "-i", "--rm", "--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_SENDER = "<your SIGNAL_SENDER>"
SIGNAL_DEFAULT_RECIPIENT = "<your SIGNAL_DEFAULT_RECIPIENT>"
SIGNAL_RPC_URL = "<your SIGNAL_RPC_URL>"
SIGNAL_TCP_HOST = "<your SIGNAL_TCP_HOST>"
SIGNAL_TCP_PORT = "<your SIGNAL_TCP_PORT>"
SIGNAL_INBOX_PATH = "<your SIGNAL_INBOX_PATH>"
SIGNAL_POLL_INTERVAL = "<your SIGNAL_POLL_INTERVAL>"
SIGNAL_INBOX_RETENTION_DAYS = "<your SIGNAL_INBOX_RETENTION_DAYS>"

Add to ~/.codex/config.toml. Replace each placeholder with your own value before saving.

Docker image

{
  "mcpServers": {
    "signal-mcp": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "--add-host",
        "host.docker.internal:host-gateway",
        "ghcr.io/joshuawowk/signal-mcp:1.0.1",
        "python3",
        "/app/server.py"
      ],
      "env": {
        "SIGNAL_SENDER": "<your SIGNAL_SENDER>",
        "SIGNAL_DEFAULT_RECIPIENT": "<your SIGNAL_DEFAULT_RECIPIENT>",
        "SIGNAL_RPC_URL": "<your SIGNAL_RPC_URL>",
        "SIGNAL_TCP_HOST": "<your SIGNAL_TCP_HOST>",
        "SIGNAL_TCP_PORT": "<your SIGNAL_TCP_PORT>",
        "SIGNAL_INBOX_PATH": "<your SIGNAL_INBOX_PATH>",
        "SIGNAL_POLL_INTERVAL": "<your SIGNAL_POLL_INTERVAL>",
        "SIGNAL_INBOX_RETENTION_DAYS": "<your SIGNAL_INBOX_RETENTION_DAYS>"
      }
    }
  }
}

Add to claude_desktop_config.json (Settings → Developer → Edit Config). Replace each placeholder with your own value before saving.

Docker image

{
  "mcpServers": {
    "signal-mcp": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "--add-host",
        "host.docker.internal:host-gateway",
        "ghcr.io/joshuawowk/signal-mcp:1.0.1",
        "python3",
        "/app/server.py"
      ],
      "env": {
        "SIGNAL_SENDER": "<your SIGNAL_SENDER>",
        "SIGNAL_DEFAULT_RECIPIENT": "<your SIGNAL_DEFAULT_RECIPIENT>",
        "SIGNAL_RPC_URL": "<your SIGNAL_RPC_URL>",
        "SIGNAL_TCP_HOST": "<your SIGNAL_TCP_HOST>",
        "SIGNAL_TCP_PORT": "<your SIGNAL_TCP_PORT>",
        "SIGNAL_INBOX_PATH": "<your SIGNAL_INBOX_PATH>",
        "SIGNAL_POLL_INTERVAL": "<your SIGNAL_POLL_INTERVAL>",
        "SIGNAL_INBOX_RETENTION_DAYS": "<your SIGNAL_INBOX_RETENTION_DAYS>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project). Replace each placeholder with your own value before saving.

Docker image

{
  "servers": {
    "signal-mcp": {
      "type": "stdio",
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "--add-host",
        "host.docker.internal:host-gateway",
        "ghcr.io/joshuawowk/signal-mcp:1.0.1",
        "python3",
        "/app/server.py"
      ],
      "env": {
        "SIGNAL_SENDER": "<your SIGNAL_SENDER>",
        "SIGNAL_DEFAULT_RECIPIENT": "<your SIGNAL_DEFAULT_RECIPIENT>",
        "SIGNAL_RPC_URL": "<your SIGNAL_RPC_URL>",
        "SIGNAL_TCP_HOST": "<your SIGNAL_TCP_HOST>",
        "SIGNAL_TCP_PORT": "<your SIGNAL_TCP_PORT>",
        "SIGNAL_INBOX_PATH": "<your SIGNAL_INBOX_PATH>",
        "SIGNAL_POLL_INTERVAL": "<your SIGNAL_POLL_INTERVAL>",
        "SIGNAL_INBOX_RETENTION_DAYS": "<your SIGNAL_INBOX_RETENTION_DAYS>"
      }
    }
  }
}

Save as .vscode/mcp.json in your workspace. Replace each placeholder with your own value before saving.

Docker image

{
  "mcpServers": {
    "signal-mcp": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "--add-host",
        "host.docker.internal:host-gateway",
        "ghcr.io/joshuawowk/signal-mcp:1.0.1",
        "python3",
        "/app/server.py"
      ],
      "env": {
        "SIGNAL_SENDER": "<your SIGNAL_SENDER>",
        "SIGNAL_DEFAULT_RECIPIENT": "<your SIGNAL_DEFAULT_RECIPIENT>",
        "SIGNAL_RPC_URL": "<your SIGNAL_RPC_URL>",
        "SIGNAL_TCP_HOST": "<your SIGNAL_TCP_HOST>",
        "SIGNAL_TCP_PORT": "<your SIGNAL_TCP_PORT>",
        "SIGNAL_INBOX_PATH": "<your SIGNAL_INBOX_PATH>",
        "SIGNAL_POLL_INTERVAL": "<your SIGNAL_POLL_INTERVAL>",
        "SIGNAL_INBOX_RETENTION_DAYS": "<your SIGNAL_INBOX_RETENTION_DAYS>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json. Replace each placeholder with your own value before saving.

Docker image

{
  "mcpServers": {
    "signal-mcp": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "--add-host",
        "host.docker.internal:host-gateway",
        "ghcr.io/joshuawowk/signal-mcp:1.0.1",
        "python3",
        "/app/server.py"
      ],
      "env": {
        "SIGNAL_SENDER": "<your SIGNAL_SENDER>",
        "SIGNAL_DEFAULT_RECIPIENT": "<your SIGNAL_DEFAULT_RECIPIENT>",
        "SIGNAL_RPC_URL": "<your SIGNAL_RPC_URL>",
        "SIGNAL_TCP_HOST": "<your SIGNAL_TCP_HOST>",
        "SIGNAL_TCP_PORT": "<your SIGNAL_TCP_PORT>",
        "SIGNAL_INBOX_PATH": "<your SIGNAL_INBOX_PATH>",
        "SIGNAL_POLL_INTERVAL": "<your SIGNAL_POLL_INTERVAL>",
        "SIGNAL_INBOX_RETENTION_DAYS": "<your SIGNAL_INBOX_RETENTION_DAYS>"
      }
    }
  }
}

Replace each placeholder with your own value before saving.

First successful task

After adding the config, ask your client to list this server's tools. A tool list confirms the connection; an empty list or an error means the server did not start or needs credentials.

ALTERNATIVES

When to choose another server

Other servers by joshuawowk

Pushover Notifications#28,328

View all joshuawowk servers →

No task-specific alternatives are catalogued for Signal Messaging (via signal-cli)yet; the list above is its publisher's other servers.

MAINTENANCE AND EVIDENCE

What changed, and when this was checked

First listed: Sep 25, 2026
Latest version published: Oct 20, 2026
Version history: 1 version tracked (below)
Requirements evidence: Declared by Glama, last synced Nov 14, 2026. Not independently verified by MCP Toplist.
Profile checked: Not yet — purpose, capabilities and requirements above come from registry data only
Ranking data as of: Nov 14, 2026

Registry sightings

Glama ↗listed since Sep 26, 2026 · still listed
Official MCP ↗listed since Oct 21, 2026 · still listed

Do you maintain Signal Messaging (via signal-cli)? to show as its verified maintainer and add your own summary, sign-in details and links. The rest of this page is read from the registry listings and from MCP Toplist's own connection check.

VERSIONS

Available versions (1)

Version	Published
1.0.1	Oct 20, 2026

STANDING

#30,523of 176,402 active serversTop 25%

Ranks ahead of 145,879 of 176,402 servers on MCP Toplist.

BADGE

Show your rank

Maintain this server? Add the live rank badge to your README — it updates automatically as the leaderboard changes.

Markdown

[![MCP Toplist](https://mcptoplist.com/badge/io.github.joshuawowk%2Fsignal-mcp.svg)](https://mcptoplist.com/server/io.github.joshuawowk%2Fsignal-mcp)

HTML

<a href="https://mcptoplist.com/server/io.github.joshuawowk%2Fsignal-mcp"><img src="https://mcptoplist.com/badge/io.github.joshuawowk%2Fsignal-mcp.svg" alt="MCP Toplist: Top 25% of 176,402" /></a>

Variants: append ?metric=score or ?metric=stars to the image URL.

FAQ

Frequently asked questions

Who maintains Signal Messaging (via signal-cli)?: Signal Messaging (via signal-cli) is maintained by joshuawowk, which publishes 2 MCP servers (3 total versions) tracked on MCP Toplist.
Is Signal Messaging (via signal-cli) listed on the Official MCP Registry?: Yes — Signal Messaging (via signal-cli) is listed on the Official MCP Registry, alongside Glama.
How many versions does Signal Messaging (via signal-cli) have?: MCP Toplist tracks 1 version of Signal Messaging (via signal-cli), most recently published on Oct 20, 2026.
Where can I find the source code for Signal Messaging (via signal-cli)?: The source code for Signal Messaging (via signal-cli) is hosted at github.com/joshuawowk/signal-mcp.

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