Pubnub MCP Server vs Hackle

In-depth architectural comparison of the Pubnub MCP Server and Hackle MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

Which MCP Server Should You Choose?

Choose Pubnub MCP Server when:

• You need dedicated capabilities in the Communication domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).

Explore Pubnub MCP Server Details

Choose Hackle when:

• You need dedicated capabilities in the Communication domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).

Explore Hackle Details

Feature & Specification Comparison

Specification	Pubnub MCP Server pubnub Communication	Hackle Communication
Summary	PubNub MCP for Real-time messaging. API Access and SDK documentation.	Remote MCP server for the Hackle Admin API: experiments, feature flags, remote config, messaging.
Category & Scope	Communication	Communication

Tools & Capabilities Breakdown

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

{
  "mcpServers": {
    "mcp-server-152": {
      "command": "npx",
      "args": [
        "-y",
        "@pubnub/mcp@latest"
      ]
    }
  }
}

{
  "mcpServers": {
    "hackle": {
      "command": "npx",
      "args": [
        "-y",
        "@hackle-io/hackle-mcp@latest"
      ]
    }
  }
}

Related MCP Server Comparisons