Stellar is a decentralized and open network for transferring and storing money. Jed McCaleb, the founder of Stellar, developed Stellar intending to provide people with a way to share their fiat currency to crypto effortlessly. Developers who build apps on the top of the Stellar network program using Stellar SDKs in their preferred programming languages. SDKs, in turn, interact with Horizon, Stellar-network API. Horizon provides a way to check accounts, subscribe to events, and submit transactions. Read more: https://www.leewayhertz.com/run-stellar-api-server/