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MCP server CX Codex

NotifyHub — Claude Code MCP server: what it does, how to install

Dispatches messages across 23 communication channels using 36 built-in tools. Handy when an assistant needs to send emails or chat alerts.

Install into Claude Code · Platform CLI All methods and platforms ↓

claude mcp add --env NOTIFY_CHANNELS_EMAIL_HOST=<NOTIFY_CHANNELS_EMAIL_HOST> --env NOTIFY_CHANNELS_EMAIL_PORT=<NOTIFY_CHANNELS_EMAIL_PORT> --env NOTIFY_CHANNELS_EMAIL_USERNAME=<NOTIFY_CHANNELS_EMAIL_USERNAME> --env NOTIFY_CHANNELS_EMAIL_PASSWORD=<NOTIFY_CHANNELS_EMAIL_PASSWORD> --env NOTIFY_CHANNELS_EMAIL_FROM=<NOTIFY_CHANNELS_EMAIL_FROM> --transport stdio notifyhub-unified-notification-mcp-server -- docker run -i --rm -e NOTIFY_CHANNELS_EMAIL_HOST -e NOTIFY_CHANNELS_EMAIL_PORT -e NOTIFY_CHANNELS_EMAIL_USERNAME -e NOTIFY_CHANNELS_EMAIL_PASSWORD -e NOTIFY_CHANNELS_EMAIL_FROM ghcr.io/gabrielbbaldez/notify-hub:1.1.0

What NotifyHub — Unified Notification MCP Server does

NotifyHub acts as a centralized notification gateway for coding agents. It provides 36 tools that talk to Telegram, Slack, Discord, and standard email. You interact with one consistent interface instead of wiring distinct SDKs for every messaging provider.

The architecture includes automatic fallback routing. If an email fails, delivery can switch directly to an SMS channel. Mustache templating, locale resolution, exponential retry backoff, and dead-letter queues help handle production workloads reliably.

Running the server requires Docker on the host machine because the runtime runs via ghcr.io/gabrielbbaldez/notify-hub:1.1.0. Missing SMTP environment variables will block email tools immediately.

What it helps with

deliver alerts to Telegram, Slack, or Discord channels
route failed email messages automatically to an SMS fallback
send transactional notifications using Mustache templates
dispatch asynchronous messages with retry backoff

Example prompts for the agent

Send a test email to [email protected] with the subject System Update.
Deliver an urgent alert to our Slack channel and fall back to SMS if it fails.
Schedule a notification batch using the order confirmation template.

How to install NotifyHub — Unified Notification MCP Server

Platform CLI

claude mcp add --env NOTIFY_CHANNELS_EMAIL_HOST=<NOTIFY_CHANNELS_EMAIL_HOST> --env NOTIFY_CHANNELS_EMAIL_PORT=<NOTIFY_CHANNELS_EMAIL_PORT> --env NOTIFY_CHANNELS_EMAIL_USERNAME=<NOTIFY_CHANNELS_EMAIL_USERNAME> --env NOTIFY_CHANNELS_EMAIL_PASSWORD=<NOTIFY_CHANNELS_EMAIL_PASSWORD> --env NOTIFY_CHANNELS_EMAIL_FROM=<NOTIFY_CHANNELS_EMAIL_FROM> --transport stdio notifyhub-unified-notification-mcp-server -- docker run -i --rm -e NOTIFY_CHANNELS_EMAIL_HOST -e NOTIFY_CHANNELS_EMAIL_PORT -e NOTIFY_CHANNELS_EMAIL_USERNAME -e NOTIFY_CHANNELS_EMAIL_PASSWORD -e NOTIFY_CHANNELS_EMAIL_FROM ghcr.io/gabrielbbaldez/notify-hub:1.1.0

Replace <…> with your own values. 45 more environment variables are in the server README

Platform CLI

codex mcp add notifyhub-unified-notification-mcp-server --env NOTIFY_CHANNELS_EMAIL_HOST=<NOTIFY_CHANNELS_EMAIL_HOST> --env NOTIFY_CHANNELS_EMAIL_PORT=<NOTIFY_CHANNELS_EMAIL_PORT> --env NOTIFY_CHANNELS_EMAIL_USERNAME=<NOTIFY_CHANNELS_EMAIL_USERNAME> --env NOTIFY_CHANNELS_EMAIL_PASSWORD=<NOTIFY_CHANNELS_EMAIL_PASSWORD> --env NOTIFY_CHANNELS_EMAIL_FROM=<NOTIFY_CHANNELS_EMAIL_FROM> -- docker run -i --rm -e NOTIFY_CHANNELS_EMAIL_HOST -e NOTIFY_CHANNELS_EMAIL_PORT -e NOTIFY_CHANNELS_EMAIL_USERNAME -e NOTIFY_CHANNELS_EMAIL_PASSWORD -e NOTIFY_CHANNELS_EMAIL_FROM ghcr.io/gabrielbbaldez/notify-hub:1.1.0

Replace <…> with your own values. 45 more environment variables are in the server README

Config file

{
    "mcpServers": {
        "notifyhub-unified-notification-mcp-server": {
            "command": "docker",
            "args": [
                "run",
                "-i",
                "--rm",
                "-e",
                "NOTIFY_CHANNELS_EMAIL_HOST",
                "-e",
                "NOTIFY_CHANNELS_EMAIL_PORT",
                "-e",
                "NOTIFY_CHANNELS_EMAIL_USERNAME",
                "-e",
                "NOTIFY_CHANNELS_EMAIL_PASSWORD",
                "-e",
                "NOTIFY_CHANNELS_EMAIL_FROM",
                "ghcr.io/gabrielbbaldez/notify-hub:1.1.0"
            ],
            "env": {
                "NOTIFY_CHANNELS_EMAIL_HOST": "<NOTIFY_CHANNELS_EMAIL_HOST>",
                "NOTIFY_CHANNELS_EMAIL_PORT": "<NOTIFY_CHANNELS_EMAIL_PORT>",
                "NOTIFY_CHANNELS_EMAIL_USERNAME": "<NOTIFY_CHANNELS_EMAIL_USERNAME>",
                "NOTIFY_CHANNELS_EMAIL_PASSWORD": "<NOTIFY_CHANNELS_EMAIL_PASSWORD>",
                "NOTIFY_CHANNELS_EMAIL_FROM": "<NOTIFY_CHANNELS_EMAIL_FROM>"
            }
        }
    }
}

Replace <…> with your own values. 45 more environment variables are in the server README

Config file

{
    "servers": {
        "notifyhub-unified-notification-mcp-server": {
            "type": "stdio",
            "command": "docker",
            "args": [
                "run",
                "-i",
                "--rm",
                "-e",
                "NOTIFY_CHANNELS_EMAIL_HOST",
                "-e",
                "NOTIFY_CHANNELS_EMAIL_PORT",
                "-e",
                "NOTIFY_CHANNELS_EMAIL_USERNAME",
                "-e",
                "NOTIFY_CHANNELS_EMAIL_PASSWORD",
                "-e",
                "NOTIFY_CHANNELS_EMAIL_FROM",
                "ghcr.io/gabrielbbaldez/notify-hub:1.1.0"
            ],
            "env": {
                "NOTIFY_CHANNELS_EMAIL_HOST": "<NOTIFY_CHANNELS_EMAIL_HOST>",
                "NOTIFY_CHANNELS_EMAIL_PORT": "<NOTIFY_CHANNELS_EMAIL_PORT>",
                "NOTIFY_CHANNELS_EMAIL_USERNAME": "<NOTIFY_CHANNELS_EMAIL_USERNAME>",
                "NOTIFY_CHANNELS_EMAIL_PASSWORD": "<NOTIFY_CHANNELS_EMAIL_PASSWORD>",
                "NOTIFY_CHANNELS_EMAIL_FROM": "<NOTIFY_CHANNELS_EMAIL_FROM>"
            }
        }
    }
}

Replace <…> with your own values. 45 more environment variables are in the server README

Platform CLI

gemini mcp add -e NOTIFY_CHANNELS_EMAIL_HOST=<NOTIFY_CHANNELS_EMAIL_HOST> -e NOTIFY_CHANNELS_EMAIL_PORT=<NOTIFY_CHANNELS_EMAIL_PORT> -e NOTIFY_CHANNELS_EMAIL_USERNAME=<NOTIFY_CHANNELS_EMAIL_USERNAME> -e NOTIFY_CHANNELS_EMAIL_PASSWORD=<NOTIFY_CHANNELS_EMAIL_PASSWORD> -e NOTIFY_CHANNELS_EMAIL_FROM=<NOTIFY_CHANNELS_EMAIL_FROM> notifyhub-unified-notification-mcp-server docker run -i --rm -e NOTIFY_CHANNELS_EMAIL_HOST -e NOTIFY_CHANNELS_EMAIL_PORT -e NOTIFY_CHANNELS_EMAIL_USERNAME -e NOTIFY_CHANNELS_EMAIL_PASSWORD -e NOTIFY_CHANNELS_EMAIL_FROM ghcr.io/gabrielbbaldez/notify-hub:1.1.0

Replace <…> with your own values. 45 more environment variables are in the server README

Step by step, with commands for each platform: How to add an MCP server to Claude Code, Codex, Cursor, VS Code, Gemini CLI and more

Questions about NotifyHub — Unified Notification MCP Server

How to install NotifyHub in Claude Code?

Run `claude mcp add --env NOTIFY_CHANNELS_EMAIL_HOST=<NOTIFY_CHANNELS_EMAIL_HOST> --env NOTIFY_CHANNELS_EMAIL_PORT=<NOTIFY_CHANNELS_EMAIL_PORT> --env NOTIFY_CHANNELS_EMAIL_USERNAME=<NOTIFY_CHANNELS_EMAIL_USERNAME> --env NOTIFY_CHANNELS_EMAIL_PASSWORD=<NOTIFY_CHANNELS_EMAIL_PASSWORD> --env NOTIFY_CHANNELS_EMAIL_FROM=<NOTIFY_CHANNELS_EMAIL_FROM> --transport stdio notifyhub-unified-notification-mcp-server -- docker run -i --rm -e NOTIFY_CHANNELS_EMAIL_HOST -e NOTIFY_CHANNELS_EMAIL_PORT -e NOTIFY_CHANNELS_EMAIL_USERNAME -e NOTIFY_CHANNELS_EMAIL_PASSWORD -e NOTIFY_CHANNELS_EMAIL_FROM ghcr.io/gabrielbbaldez/notify-hub:1.1.0`.

What does NotifyHub do?

It gives the AI assistant tools to send messages across 23 different channels, covering chat platforms, email, and webhooks.

What are the prerequisites to run this server?

You need a local Docker daemon running and valid credentials passed through environment variables for each channel you use.

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