Codex Auth Setup

codex-auth-setup

Use this skill when the user wants to install, reinstall, upgrade, or troubleshoot codex-multi-auth for the official @openai/codex CLI.

Install

npm i -g @openai/codex
npm i -g codex-multi-auth

If the old scoped prerelease package is still installed:

npm uninstall -g @ndycode/codex-multi-auth
npm i -g codex-multi-auth

First login

codex-multi-auth login

Default flow:

1. Open the account menu.
2. Choose the browser-first OAuth path.
3. Complete the official OAuth flow.
4. Return to the terminal and confirm the account was saved.

Verify health and routing

codex-multi-auth status
codex-multi-auth list
codex-multi-auth check
codex-multi-auth forecast --live

Use these next when managing multiple accounts:

codex-multi-auth switch 2
codex-multi-auth verify-flagged
codex-multi-auth doctor --fix

Alternate login paths

Use these when browser launch is blocked or the shell is headless:

codex-multi-auth login --manual
CODEX_AUTH_NO_BROWSER=1 codex-multi-auth login

Troubleshooting

• Run where codex-multi-auth if codex-multi-auth is not recognized.
• Free port 1455 and retry if the OAuth callback server cannot bind.
• Re-run codex-multi-auth login if the active account is stale or the wrong account was selected.
• Use codex-multi-auth doctor --fix followed by codex-multi-auth check for a fast recovery loop.
• See docs/getting-started.md, docs/configuration.md, docs/troubleshooting.md, and docs/reference/commands.md for the full command and config docs.

Usage boundaries

This project is for personal development use. For production or commercial workloads, use the OpenAI Platform API.