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CodexUse

Multi-account and multi-provider auth in one app

AccountsUpdated August 2026 · 5 min read

Run every OpenAI account from one desktop app. Sign in once per account, then switch between them instantly, with no re-authentication and no browser loop. A profile can also be bound to an OpenAI-compatible provider instead of an OpenAI account.

Two profile types: a profile is either an OpenAI account or a custom provider — never both, and each keeps its own isolated Codex home. OpenAI profiles sign in with the Codex CLI OAuth flow. Custom-provider profiles point at an OpenAI-compatible endpoint with a credential you supply. See how custom providers work.

Why multi-account matters

  • Work vs personal separation: Keep company and personal usage clean.
  • Org isolation: Different orgs can have different model access and limits.
  • Rate limit planning: Keep heavy jobs on a dedicated account.
  • Client workspaces: Use a profile per client to avoid context bleed.
No API key for an OpenAI profile: those use the same Codex CLI OAuth flow. A custom-provider profile does need a credential for that provider; CodexUse keeps it in the macOS Keychain and never writes it into config.toml. Credentials stay local by default. Cloud sync is opt-in and manual during an active trial or with Pro, and syncs profile credentials to CodexUse services only when you ask it to.

Supported profile types and models

Profile typeAuth methodAvailable models
OpenAI accountOpenAI OAuthGPT-5.3-Codex, GPT-5.2-Codex, GPT-5.1-Codex-Max, GPT-5.1-Codex-Mini, GPT-5.2
Custom providerYour provider credential, held in the macOS KeychainThe models you publish on that connection — OpenRouter, DeepSeek, Groq, or a model running on your own Mac

Setting up your first profile

  1. Open CodexUse on macOS.
  2. Click the + button to add a new profile and pick OpenAI account.
  3. Complete the OpenAI OAuth flow in your browser. CodexUse stores the token locally.
  4. Name your profile, for example "Work" or "Personal".

Adding more accounts

Repeat the steps above for each OpenAI account. Every profile is independent, so add one per account or org and switch between them at will.

Switching between accounts

From the window

Use the profile cards in the Profiles view or the quick switcher to pick a profile. The switch is quick, no browser needed.

From the system tray

Use the CodexUse tray menu to switch profiles. Each entry shows the profile name so you know which account will run.

Rate limits across accounts

CodexUse shows rate limit usage per profile. When one account approaches its threshold, you can:

  • Switch to another profile.
  • Enable auto-roll (Pro) to switch automatically.

CLI bundling explained

CodexUse bundles the Codex CLI so you do not need to install it separately. Updates to CodexUse include CLI updates, so you get compatible versions by default.

Common setups

Use caseSuggested profilesWhy
Solo developerWork, PersonalKeep billing and work contexts separate.
ConsultantOne profile per clientClean separation across engagements.
Team leadOrg profiles by teamDifferent limits and access per org.

Related

Switch accounts without logout Run a custom model provider in the Codex App Auto-roll guardrails Rate limits and 429s

Do I need API keys to use CodexUse?

Not for an OpenAI profile — that uses the same Codex CLI OAuth login. A custom-provider profile needs a credential for the provider you choose, stored in the macOS Keychain. See the custom model providers docs.

Can I add more than one OpenAI account?

Yes. Each OpenAI profile is tied to one account. Create one profile per account and switch between them from the tray or window.

Which models are available?

On an OpenAI profile: GPT-5.3-Codex, GPT-5.2-Codex, GPT-5.1-Codex-Max, GPT-5.1-Codex-Mini, and GPT-5.2, based on your account access. On a custom-provider profile: only the models you published to it. The two lists never mix.