Abra offers direct bank transfers although this service is available in the US and Philippines only. Coinbase is a popular name in the world of cryptocurrencies and is a digital currency exchange based in the US since With a service that has been around for that long, you can be sure to get the best of services. In particular, Barhydt said his firm was asked to reveal how it works with exchange partners , as well as its know-your-customer process. Thanks for the article! It extends its operations up to a good number of countries and is generally regarded as a fine service for carrying out cryptocurrency transactions, irrespective of the type of currency you are interested in.