Gem (acquired by Blockdaemon) | 2,628 followers on LinkedIn. The easiest way to add a fiat-to-crypto onramp in any app. | 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.