GTK’s interface services are a connection to GTK’s server. The server can be accessed with spatial data software, and the software can then be used to select and download data from GTK’s server. The interfaces are based on the WMS and WFS standards.
The use of GTK’s interface services in free of charge, and users are not asked to create an account. However, users must agree to the terms and conditions of the service. Depending on the map layer, access is either restricted or open and continuous.