Smart-ID personal identification can be used today in Estonia, Latvia, and Lithuania. If you are an alien living in Estonia or you want to help an alien create an account, the options are:
Residents of Estonia, Latvia, and Lithuania (incl. People staying here on the basis of a permanent residence permit) have a residence permit card. It allows you to create a Smart-ID account exactly as you would with an ID card: just follow the on-screen instructions. Your personal identification code is written on the residence card.
If you are a non-resident, ie a person who does not have a local personal identification code, it is not possible to create a Smart-ID account in Estonia and Latvia. However, it is possible to register a Smart-ID Basic account with limited rights in Lithuania by visiting the bank branch of Medicines Bankas, don't forget to bring your identity documents!