Who it is for

You do not want to configure an OpenAI Platform API key locally.
You do not have a paid ChatGPT account, or you do not want to provide your own account to the Codex client.
You want to use PhotonMark managed Codex quota directly with prepaid balance.

Billing

Codex Pay uses prepaid balance and charges based on real upstream usage fields. Balance validity is 30 days; unused balance expires at the end unless extended by a new top-up.

How it works

Pay uses PhotonMark managed Codex authorization. The dedicated TOML config contains requires_openai_auth = false，If the machine still sends old OPENAI_API_KEY, invalid_api_key or Incorrect API key may appear, and local old config needs to be cleaned.

Next Step

Buy / Open Pay Back to services View FAQ