Gem (acquired by Blockdaemon)

Gem is a cryptocurrency API company that powers fiat-to-crypto onramps for some of the largest companies in the cryptocurrency industry. Gem gives our partners a beautiful user interface to the crypto universe with just a few lines of code. Our flagship product, Gem Onramp is the "Add Money" button for crypto; an embeddable UI flow offering global fiat payment methods and exchange transfer options to your users. With our embeddable UI flows and API, your users can seamlessly connect external crypto data, assets and fiat without ever leaving your app.