User's API Key can be used for the authentication. The user should have Administrator permission of the target Enterprise.
Requests Not Linked to Users
Only when using APIs related to DeployGate Enterprise, API Key of Enterprise Account can be used as a replacement for user's API key.
With Enterprise API Key, you can run operations without linking to the specific user.
Permisson of Enterprise API Key
Access with Enterprise API Key requires Administrator permission and it enables you to run all opreations.