Claude ChatGPT MCP server

This tool enables Claude to interact directly with the ChatGPT desktop app on macOS, functioning as a bridge between the two AI assistants. It allows you to ask Claude to send questions to ChatGPT, view your ChatGPT conversation history, and continue existing conversations, all without leaving the Claude interface.

Prerequisites

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

Installation Options

NPX Installation (Recommended)

You can use NPX to run this tool without cloning the repository:

1. Install and run the package using NPX:

npx claude-chatgpt-mcp

2. Configure Claude Desktop:

Edit your claude_desktop_config.json file (located at ~/Library/Application Support/Claude/claude_desktop_config.json) to include this tool:

"chatgpt-mcp": {
  "command": "npx",
  "args": ["claude-chatgpt-mcp"]
}

3. Restart the Claude Desktop app

4. Grant necessary permissions:

   • Go to System Preferences > Privacy & Security > Privacy
   • Give Terminal (or iTerm) access to Accessibility features
   • You may see permission prompts when the tool is first used

Manual Installation

1. Clone the repository:

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

2. Install dependencies:

bun install

3. Make the script executable:

chmod +x index.ts

4. Update your Claude Desktop configuration:

Edit your claude_desktop_config.json file (located at ~/Library/Application Support/Claude/claude_desktop_config.json) to include this tool:

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

Make sure to replace YOURUSERNAME with your actual macOS username and adjust the path to where you cloned the repository.

5. Restart the Claude Desktop app

6. Grant permissions:

   • Go to System Preferences > Privacy & Security > Privacy
   • Give Terminal (or iTerm) access to Accessibility features
   • You may see permission prompts when the tool is first used

Usage

Once installed, you can use the ChatGPT tool directly from Claude by asking questions like:

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

Troubleshooting

If the tool isn't working properly:

1. Make sure ChatGPT app is installed and you're logged in
2. Verify the path to bun in your claude_desktop_config.json is correct
3. Check that you've granted all necessary permissions
4. Try restarting both Claude and ChatGPT apps

How to install this MCP server

For Claude Code

To add this MCP server to Claude Code, run this command in your terminal:

claude mcp add-json "chatgpt-mcp" '{"command":"npx","args":["claude-chatgpt-mcp"]}'

See the official Claude Code MCP documentation for more details.

For 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 > Tools & Integrations and click "New MCP Server".

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

{
    "mcpServers": {
        "chatgpt-mcp": {
            "command": "npx",
            "args": [
                "claude-chatgpt-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 explicitly ask the agent to use the tool by mentioning the tool name and describing what the function does.

For Claude Desktop

To add this MCP server to Claude Desktop:

1. Find your configuration file:

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

2. Add this to your configuration file:

{
    "mcpServers": {
        "chatgpt-mcp": {
            "command": "npx",
            "args": [
                "claude-chatgpt-mcp"
            ]
        }
    }
}

3. Restart Claude Desktop for the changes to take effect