Using a CardDAV address book
To add such an address book, perform the following steps:
Click File ▸ New ▸ Address Book.
Select the type CardDAV.
To discover the address books, announced by the server, enter the server address as URL and optionally User, then click on Find Address Books. Select the address book. This prefills the fields Name and URL. The step is optional, and you can overwrite all the discovered settings.
Enter a name that you prefer.
Enter the address in the URL field.
Choose Use a secure connection if you want to connect securely.
Enter your username.
Click OK.
The address book will be added to the list of address books in Evolution, GNOME Contacts.