To get started with Agisoft Cloud it is needed to create a personal account on the following page: https://account.agisoft.com/.
Agisoft Cloud currently is only available for the Professional edition license owners and is working in testing mode, i.e. the processing performed on the cloud is free for Professional edition license owners.
Personal account page provides information about current plan, available resources and hardware, personal data. Project management and other Agisoft Cloud functionality is available at: https://cloud.agisoft.com