step1: Install Node.js >= 18 from Node.js. step2: Download and install the Claude Desktop app. step3: Obtain an OpenAI API key from OpenAI API key. step4: Add the following entry to your claude_desktop_config.json:

{ "mcpServers": { "mcp-openai": { "command": "npx", "args": ["-y", "@mzxrai/mcp-openai@latest"], "env": { "OPENAI_API_KEY": "your-api-key-here" } } } }

step5: Start the Claude Desktop app and begin chatting. Use commands like Can you ask o1 what it thinks about this problem? to utilize OpenAI's models.