Authentication and API User Permissions
To use the REST APIs, you must be an authorized Illumio user with credentials to log into the PCE.
You get authorized to perform a specific job according to the privileges granted to you based on the role-based access control (RBAC) and implemented by the Illumio administrator.
The PCE has two types of credentials that you can use to authenticate with it and make REST API calls:
API keys, which provide a persistent means of authenticating
Session credentials, which provide a temporary means of authenticating