---
title: "Codex Desktop with SSO"
url: "/docs/proxy/client_setup/codex_chatgpt_desktop_sso"
canonical_url: "https://docs.litellm.ai/docs/proxy/client_setup/codex_chatgpt_desktop_sso"
type: "docs"
last_updated: "2026-10-19"
summary: "Codex in ChatGPT Desktop reads the same ~/.codex/config.toml as the Codex CLI and runs the same authentication helper. For app onboarding, model selection, and MCP configuration, see the desktop setup guide."
related:
  - "/docs/proxy/client_setup/claude_code"
  - "/docs/proxy/client_setup/codex_chatgpt_desktop"
---
# Codex Desktop with SSO

> Index of all LiteLLM docs: https://docs.litellm.ai/llms.txt


Codex in ChatGPT Desktop reads the same `~/.codex/config.toml` as the [Codex CLI](./codex_cli_sso.md) and runs the same authentication helper. For app onboarding, model selection, and MCP configuration, see the [desktop setup guide](./codex_chatgpt_desktop.md).

These settings configure the Codex side of the app. Regular ChatGPT chats are not configured by `~/.codex/config.toml` and do not go through LiteLLM.

## Configure SSO authentication

Desktop apps may not inherit variables exported in your terminal. Use the absolute path to `lite` shown above. With the `auth` command in place of `env_key`, you can skip the `LITELLM_API_KEY` entry in `~/.codex/.env` for the model provider. The [desktop MCP setup](./codex_chatgpt_desktop.md#mcp-setup) still uses its own bearer token environment variable.

Restart the app after changing the configuration.

## Next steps

See the [desktop setup guide](./codex_chatgpt_desktop.md) for app configuration and the [Codex CLI setup guide](./codex_cli.md#model-catalog-and-service-tiers) for model discovery and service tiers.

## Related pages

- [Virtual keys](https://docs.litellm.ai/docs/proxy/client_setup/claude_code.md)
- [Virtual keys](https://docs.litellm.ai/docs/proxy/client_setup/codex_chatgpt_desktop.md)