Port 8096, which allows API calls without authentication, is closed and disabled by default on any fresh 3.0.1 installations. You can enable 8096 (or another port) for this purpose as follows:

CloudStack now supports creating a VM without starting it. You can determine whether the VM needs to be started as part of the VM deployment. A VM can now be deployed in two ways: create and start a VM (the default method); or create a VM and leave it in the stopped state.

A new request parameter, startVM, is introduced in the deployVm API to support the stopped VM feature.

The possible values are:

The default value is true.

There was a major change in how our List* API commands work in CloudStack 3.0 compared to 2.2.x. The rules below apply only for managed resources – those that belong to an account, domain, or project. They are irrelevant for the List* commands displaying unmanaged (system) resources, such as hosts, clusters, and external network resources.

When no parameters are passed in to the call, the caller sees only resources owned by the caller (even when the caller is the administrator). Previously, the administrator saw everyone else's resources by default.

When accountName and domainId are passed in:

When projectId is passed in, only resources belonging to that project are listed.

When domainId is passed in, the call returns only resources belonging to the domain specified. To see the resources of subdomains, use the parameter isRecursive=true. Again, the regular user can see only resources owned by that user, the root administrator can list anything, and a domain administrator is authorized to see only resources of the administrator's own domain and subdomains.

To see all resources the caller is authorized to see, except for Project resources, use the parameter listAll=true.

To see all Project resources the caller is authorized to see, use the parameter projectId=-1.

There is one API command that doesn't fall under the rules above completely: the listTemplates command. This command has its own flags defining the list rules:

The CloudStack UI on a general view will display all resources that the logged-in user is authorized to see, except for project resources. To see the project resources, select the project view.

You can now find the CloudStack-specific error code in the exception response for each type of exception. The following list of error codes is added to the new class named CSExceptionErrorCode. These codes are applicable in CloudStack 3.0.3 and later versions.