...
This page does not describe service accounts created and owned by Google to manage roles and permissions for different services. For example, when you first enable a project’s ClearBlade IoT Core API, a new service account is automatically assigned a role to enable publishing to Pub/Sub topics. For details, see Creating a device registry.
ClearBlade IoT Core uses two authentication types. When authenticating devices to ClearBlade IoT Core, you use private/public key pairs and JSON Web Tokens.
...