Stellar is a blockchain platform for transferring digital assets worldwide in real time. The purpose of the Stellar blockchain creation was to provide users with the ability to make payments quickly, safely and cheaper. The project was launched as a competitor to Ripple in 2014 by one of the founders of XRP - Jed McCaleb.
The platform token is Stellar Lumens (XLM) is among the leading crypto coins by crypto market capitalization. Stellar coin all-time high price was in January, 2018 when it costed $0.938144 USD. Today Stellar Lumens price is 0.3285 USD. You can buy XML at Stealthex exchange with a low fee.