📌Overview

Purpose: To provide a seamless integration of OpenAI's models for users of the Claude Desktop app through a Model Context Protocol (MCP) server.

Overview: The MCP OpenAI Server allows users to interact directly with OpenAI's chat models via the Claude Desktop app, enhancing the capabilities of chat interactions by supporting multiple powerful models in a streamlined manner.

Key Features:

Direct Integration with OpenAI's Chat Models: Enables users to interact with various OpenAI models, enhancing conversational experiences.
Support for Multiple Models: Compatible with gpt-4o, gpt-4o-mini, o1-preview, and o1-mini, offering flexibility in model selection for different use cases.
Simple Message Passing Interface: Facilitates straightforward communication between the user and OpenAI models, making the integration user-friendly.
Basic Error Handling: Provides initial support to handle errors gracefully, improving user experience.

MCP OpenAI Server

A Model Context Protocol (MCP) server that lets you seamlessly use OpenAI's models right from Claude.

Features

Direct integration with OpenAI's chat models
Support for multiple models including:
- gpt-4o
- gpt-4o-mini
- o1-preview
- o1-mini
Simple message passing interface
Basic error handling

Prerequisites

Node.js >= 18 (includes npm and npx)
Claude Desktop app
OpenAI API key

Installation

Make sure you have the Claude Desktop app installed and have requested an OpenAI API key.

Add this entry to your claude_desktop_config.json (on Mac, located at ~/Library/Application Support/Claude/claude_desktop_config.json):

{
  "mcpServers": {
    "mcp-openai": {
      "command": "npx",
      "args": ["-y", "@mzxrai/mcp-openai@latest"],
      "env": {
        "OPENAI_API_KEY": "your-api-key-here (get one from https://platform.openai.com/api-keys)"
      }
    }
  }
}

This config lets Claude Desktop start the OpenAI MCP server when needed.

Usage

Start chatting with Claude and ask it to use OpenAI's models. For example:

Can you ask o1 what it thinks about this problem?

What does gpt-4o think about this?

Supported models:

gpt-4o (default)
gpt-4o-mini
o1-preview
o1-mini

Tools

openai_chat
- Sends messages to OpenAI's chat completion API
- Arguments:
  - messages: Array of messages (required)
  - model: Model to use (optional, defaults to gpt-4o)

Known Issues

As this is alpha software, bugs may occur. Check Claude Desktop's MCP logs if issues arise:

tail -n 20 -f ~/Library/Logs/Claude/mcp*.log

Development

To set up the development environment:

pnpm install
pnpm build
pnpm watch
pnpm dev

Requirements

Node.js >= 18
OpenAI API key

Verified Platforms

macOS
Linux (not verified)

License

MIT

Author

mzxrai (https://github.com/mzxrai)