The icon services are only avaiable to Plus and Ultimate license holders.
Enable the Icons8 Service
First you’ll need to enable the Icons8 service, which can be done from the WordPress dashboard by navigating to WPIcons ⇨ Services. Once on the Services page you’ll be presented with a list of Icon Services(similar to the image below) that you can enable or disable as needed.
Click on the blue Enable button inside of the Icons8 service container. This will enable the Icons8 icon service and redirect you right to the Icons8 services settings page.
The Icons8 service settings page is very straight forward. You’ll notice that there is a single field on the settings page, API Auth Token. You’ll see in the right-hand sidebar titled “Icons8 API“. Click on the “Iconfinder API Dashboard” button inside of this metabox to be taken to the Iconfinder website.