Claude ChatGPT MCP server

This MCP server lets you interact with the ChatGPT desktop app directly from Claude on macOS. It allows you to ask ChatGPT questions, view conversation history, and continue existing conversations without leaving Claude.

Prerequisites

• macOS with M1/M2/M3 chip
• ChatGPT desktop app installed
• Bun installed
• Claude desktop app installed

Installation

Step 1: Clone the repository

git clone https://github.com/syedazharmbnr1/claude-chatgpt-mcp.git
cd claude-chatgpt-mcp

Step 2: Install dependencies

bun install

Step 3: Make the script executable

chmod +x index.ts

Step 4: Update Claude Desktop configuration

Edit your Claude configuration file located at: ~/Library/Application Support/Claude/claude_desktop_config.json

Add the following configuration:

"chatgpt-mcp": {
  "command": "/Users/YOURUSERNAME/.bun/bin/bun",
  "args": ["run", "/path/to/claude-chatgpt-mcp/index.ts"]
}

Important: Replace YOURUSERNAME with your actual macOS username and adjust the path to where you cloned the repository.

Step 5: Restart Claude Desktop app

Close and reopen the Claude app for changes to take effect.

Step 6: Grant permissions

• Navigate to System Preferences > Privacy & Security > Privacy
• Grant Terminal (or iTerm) access to Accessibility features
• You may need to approve permission requests when first using the tool

Usage

After installation, you can interact with ChatGPT directly from Claude using natural language requests such as:

• "Can you ask ChatGPT what the capital of France is?"
• "Show me my recent ChatGPT conversations"
• "Ask ChatGPT to explain quantum computing"

Troubleshooting

If you encounter issues:

• Verify that the ChatGPT app is installed and you're logged in
• Double-check the path to Bun in your Claude configuration file
• Ensure all necessary permissions have been granted
• Try restarting both Claude and ChatGPT applications

How to add this MCP server to Cursor

There are two ways to add an MCP server to Cursor. The most common way is to add the server globally in the ~/.cursor/mcp.json file so that it is available in all of your projects.

If you only need the server in a single project, you can add it to the project instead by creating or adding it to the .cursor/mcp.json file.

Adding an MCP server to Cursor globally

To add a global MCP server go to Cursor Settings > MCP and click "Add new global MCP server".

When you click that button the ~/.cursor/mcp.json file will be opened and you can add your server like this:

{
    "mcpServers": {
        "cursor-rules-mcp": {
            "command": "npx",
            "args": [
                "-y",
                "cursor-rules-mcp"
            ]
        }
    }
}

Adding an MCP server to a project

To add an MCP server to a project you can create a new .cursor/mcp.json file or add it to the existing one. This will look exactly the same as the global MCP server example above.

How to use the MCP server

Once the server is installed, you might need to head back to Settings > MCP and click the refresh button.

The Cursor agent will then be able to see the available tools the added MCP server has available and will call them when it needs to.

You can also explictly ask the agent to use the tool by mentioning the tool name and describing what the function does.