OpenAI

Add MCP servers to ChatGPT

ChatGPT has no config file; you add remote MCP servers as apps in Developer mode.

Where: Turn on Developer mode under Settings > Security and login, or ask your workspace admin. Then create an app with the server URL, choose OAuth or no auth, and run Scan Tools.
Top-level key: —
Format: —
OAuth for remote servers: Yes

Turn on Developer mode under Settings > Security and login, or ask your workspace admin. Then create an app with the server URL, choose OAuth or no auth, and run Scan Tools.

Notes and quirks

ChatGPT on the web connects only to remote servers. Private servers can be reached through Secure MCP Tunnel.
For OAuth it supports CIMD, dynamic registration or a client you define. Request offline_access to get refresh tokens.
The ChatGPT desktop app reads Codex's ~/.codex/config.toml, including stdio servers.
Local servers such as Playwright can't be added on the web.

Build a ChatGPT config →

Other clients

Claude Desktop Claude Code Cursor VS Code (GitHub Copilot)Windsurf / Devin Desktop Zed OpenAI Codex CLI Gemini CLI OpenClaw Cline Continue JetBrains AI Assistant

Sources

help.openai.com/en/articles/12584461-developer-mode-and-full-mcp-connectors-in-chatgp
developers.openai.com/api/docs/mcp
developers.openai.com/plugins/build/auth
developers.openai.com/codex/mcp