XL Deploy REST API

BannerService Retrieves and modifies the banner shown in the XL Deploy GUI
EnvironmentService Retrieves information about Environments: which DeployedApplications and which Hosts are there in an environment? A User must have READ permission on the environment to obtain the requested info.
HostService Retrieves information about Hosts: which DeployedApplications have deployeds on this host, and which environments does this host take part in? The user must have READ access to the specified host.
PlaceholderService Information about placeholders