# Unit system

Check your unit details and usage history. Please note that credits are exclusively used within the YouCam Online Editor UI, whereas units are designated solely for AI API usage. Throughout this document, all references to 'credit' or 'unit' pertain to the Unit.

## Get unit info

 - [GET /s2s/v1.0/client/credit](https://docs.perfectcorp.com/developers/unit_system/unit-system/paths/~1s2s~1v1.0~1client~1credit/get.md)

## View unit history

 - [GET /s2s/v1.0/client/credit/history](https://docs.perfectcorp.com/developers/unit_system/unit-system/paths/~1s2s~1v1.0~1client~1credit~1history/get.md)