Codex Setup
Use the remote HTTP MCP endpoint (recommended):~/.codex/config.toml:
/mcp in Codex, or use the CLI, to verify the connection:
Local (stdio) alternative
If you prefer running locally:The ChatGPT desktop app, Codex CLI, and Codex IDE extension share the same MCP configuration on the same host. On Windows, replace
python3 with the Python command available on your system.