Stellar is an open sourced decentralized protocol to transfer money in any pair of currencies.
For instance, Joe can send a USD transaction to Marie in Euro or Bitcoin seamlessly.
The way it works is by using Lumens as an intermediary currency for conversion between currencies. Money balance is maintained via a gateway, a network participant whom you trust to accept a deposit in exchange for credit on the network.
Stellar's mission is to expand financial access and literacy worldwide.
Stellar is a decentralized protocol for sending and receiving money led by Jed McCaleb from Ripple and the original founder of Mt. Gox.