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Pusher Channels

Official registry Other

Trigger events, query channels, and manage realtime messaging on Pusher Channels.

Source code Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

NPM package @crashbytes/pusher-mcp-server
Claude Code 
claude mcp add pusher-channels -e 'PUSHER_APP_ID=<PUSHER_APP_ID>' -e 'PUSHER_KEY=<PUSHER_KEY>' -e 'PUSHER_SECRET=<your pusher_secret>' -e 'PUSHER_CLUSTER=<PUSHER_CLUSTER>' -- npx -y @crashbytes/pusher-mcp-server@1.0.3
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "pusher-channels": {
            "command": "npx",
            "args": [
                "-y",
                "@crashbytes/pusher-mcp-server@1.0.3"
            ],
            "env": {
                "PUSHER_APP_ID": "<PUSHER_APP_ID>",
                "PUSHER_KEY": "<PUSHER_KEY>",
                "PUSHER_SECRET": "<your pusher_secret>",
                "PUSHER_CLUSTER": "<PUSHER_CLUSTER>"
            }
        }
    }
}

Environment variables

  • PUSHER_APP_ID required Your Pusher application ID
  • PUSHER_KEY required Your Pusher application key
  • PUSHER_SECRET required secret Your Pusher application secret
  • PUSHER_CLUSTER required Pusher cluster region (e.g. us2, eu, ap1)

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. Pusher Channels MCP Server
  2. Tools
  3. Prerequisites
  4. Installation
  5. Configuration
  6. Usage with Claude Desktop
  7. Usage with Claude Code
  8. Example Prompts
  9. Development
  10. Tutorial
  11. License

Pusher Channels MCP Server

An MCP (Model Context Protocol) server that gives AI agents the ability to send realtime messages, query channels, and manage users through Pusher Channels.

Tools

ToolDescription
trigger_eventSend an event to one or more channels
trigger_batch_eventsSend up to 10 events in a single API call
list_channelsList active channels with optional prefix filter
get_channel_infoGet subscription/user count for a channel
get_presence_usersList users connected to a presence channel
authorize_channelGenerate auth tokens for private/presence channels
terminate_user_connectionsDisconnect all connections for a user

Prerequisites

Installation

npm install -g @crashbytes/pusher-mcp-server

Or clone and build from source:

git clone https://github.com/CrashBytes/pusher-mcp-server.git
cd pusher-mcp-server
npm install
npm run build

Configuration

You need four environment variables from your Pusher dashboard:

VariableDescription
PUSHER_APP_IDYour Pusher app ID
PUSHER_KEYYour Pusher app key
PUSHER_SECRETYour Pusher app secret
PUSHER_CLUSTERYour Pusher cluster (e.g. us2, eu, ap1)

Usage with Claude Desktop

Add the following to your Claude Desktop config file:

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json Windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "pusher": {
      "command": "node",
      "args": ["/path/to/pusher-mcp-server/build/index.js"],
      "env": {
        "PUSHER_APP_ID": "your_app_id",
        "PUSHER_KEY": "your_app_key",
        "PUSHER_SECRET": "your_app_secret",
        "PUSHER_CLUSTER": "us2"
      }
    }
  }
}

If installed globally via npm:

{
  "mcpServers": {
    "pusher": {
      "command": "pusher-mcp-server",
      "env": {
        "PUSHER_APP_ID": "your_app_id",
        "PUSHER_KEY": "your_app_key",
        "PUSHER_SECRET": "your_app_secret",
        "PUSHER_CLUSTER": "us2"
      }
    }
  }
}

Usage with Claude Code

claude mcp add pusher -- node /path/to/pusher-mcp-server/build/index.js

Set the environment variables in your shell before running, or configure them in your Claude Code MCP settings.

Example Prompts

Once configured, you can ask Claude things like:

  • "Send a 'deploy-complete' event to the notifications channel with the message 'v2.1.0 deployed'"
  • "Show me all active presence channels"
  • "How many users are on the presence-lobby channel?"
  • "Disconnect user abc123 from all channels"

Development

npm install
npm run dev          # Run with tsx (hot reload)
npm run build        # Compile TypeScript
npm run type-check   # Check types without emitting

Tutorial

For a step-by-step guide on building this server from scratch, see the full tutorial on CrashBytes.

License

MIT

Frequently asked questions

What is Pusher Channels?

Trigger events, query channels, and manage realtime messaging on Pusher Channels.

How do I install Pusher Channels?

It runs on your machine. In Claude Code: claude mcp add pusher-channels -e 'PUSHER_APP_ID=<PUSHER_APP_ID>' -e 'PUSHER_KEY=<PUSHER_KEY>' -e 'PUSHER_SECRET=<your pusher_secret>' -e 'PUSHER_CLUSTER=<PUSHER_CLUSTER>' -- npx -y @crashbytes/pusher-mcp-server@1.0.3. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Pusher Channels need an API key?

Yes. It expects PUSHER_APP_ID, PUSHER_KEY, PUSHER_SECRET, PUSHER_CLUSTER, which you set in its configuration.

Is Pusher Channels open source?

Yes. Its code is on GitHub under the MIT license.

Who maintains Pusher Channels?

It is published by CrashBytes. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.