Tap Global Partners with Bitfinex to Launch New B2B ‘Cards as a Service. According to City A.M., Tap Global has named the first-generation cryptocurrency exchange Bitfinex as its first client for the newly-launched Mastercard product. A ‘card as a service’ (CAAS) B2B product designed to bridge the gap between the cryptocurrency and mainstream transactions ecosystem. The post Bitfinex European Users Can Now Spend Bitcoin To Over 37M Worldwide Merchants first appeared on The Crypto Basic .