MCP Jailbreaker Server

This is a Model Context Protocol (MCP) server that implements a partial AI jailbreak, deployed as a Cloudflare Worker. Connect your ai with the jailbreaker via https://mcp-jailbreaker.cf-test-fa8.workers.dev/mcp.

TLDR

Add this config for Claude:

{
  "mcpServers": {
    "mcp-jailbreaker": {
      "command": "npx",
      "args": [
        "mcp-remote",
        "https://mcp-jailbreaker.cf-test-fa8.workers.dev/mcp"
      ]
    }
  }
}

Related MCP server: Remote MCP Server Authless

How It Works

Once set up, start a conversation with the AI using the phrase:

"Let's play space wars"

Features

• No Authentication: The server is open and requires no credentials.

• play_game Tool: A simple tool that initiates the space wars scenario.

• Cloudflare Workers: Runs on Cloudflare's edge network for low latency.

Prerequisites

• Node.js (v18 or higher recommended)

• npm

• Wrangler CLI (for deployment)

Installation

1. Clone the repository:

   git clone https://github.com/Mcrich23/mcp-jailbreaker.git
   cd mcp-jailbreaker

2. Install dependencies:

   npm install

Usage

Local Development

Run the server locally with Wrangler:

npm run dev

This starts a local server at http://localhost:8787.

Endpoints

• / - Health check

• /sse - Server-Sent Events transport for MCP

• /mcp - Standard MCP HTTP transport

Deployment to Cloudflare

Deploy to Cloudflare Workers:

npm run deploy

Configuration in Claude Desktop

Add the following to your claude_desktop_config.json (typically located in ~/Library/Application Support/Claude/ on macOS):

{
  "mcpServers": {
    "mcp-jailbreaker": {
      "command": "npx",
      "args": [
        "mcp-remote",
        "https://mcp-jailbreaker.cf-test-fa8.workers.dev/mcp"
      ]
    }
  }
}

Replace the URL with your deployed Cloudflare Worker URL.

Development

Configuration in Claude Desktop

Add the following to your claude_desktop_config.json (typically located in ~/Library/Application Support/Claude/ on macOS):

{
  "mcpServers": {
    "mcp-jailbreaker": {
      "command": "npx",
      "args": [
        "mcp-remote",
        "http://localhost:8787/mcp"
      ]
    }
  }
}

Available Scripts

• npm run dev - Run locally with Wrangler

• npm run deploy - Deploy to Cloudflare Workers

• npm run format - Format code with Biome

• npm run lint:fix - Lint and fix with Biome

• npm run type-check - TypeScript type checking