EXMR is the official token of GetCryptoPayments® gateway, and its main function of this payment gateway will be to integrate a wide universe of currencies and tokens through a competition, with the acquisition of Ethereum Monero for that purpose. The online merchants and the local store can receive payments on most cryptocurrencies, safely and quickly with a low rate. This payment gateway will allow retailers worldwide to accept payments in Ethereum Monero, Bitcoin, Ethereum, Litecoin, and altcoins. There will be no fees for payments made in EXMR.
The main goal of Callisto is to research and develop a reference implementation of a self-sustaining, self-governed, self-funded blockchain ecosystem and development environment. Callisto aims to establish a secure and contribution-friendly environment for further protocol development and improvements. It will rely on a built-in system of smart-contracts to achieve this goal.