Cardano was launched in 2015 by a Hong Kong company named IOHK. The company is currently managed by the co-founder of Ethereum. It’s an open-source, decentralized project that uses proof-of-stake transaction validation.
Cardano has its blockchain protocol named Ouroboros. The goal is to provide a blockchain that will perform and scale better than Ethereum, which was also one of the reasons why they are managed by Ethereum's co-founder. ADA is the protocol’s designated cryptocurrency. They raised around $63 million during the ICO, and ADA’s all-time high struck at $1.18, with around 31.63 billion coins in existence today.
The only thing you need to do is register for a NOWPayments account, generate an API key, and you can start accepting payments, donations, and raise funds in Cardano, your favorite cryptocurrency!