CELR is the Ethereum ERC-20 token that can be used on the Celer Network for a variety of purposes. That includes numerous incentive systems and service and transaction fees for off-chain service providers. The Celer Network stands as one of the best layer-2 scaling platforms that seek to make off-chain payments and generalised off-chain smart contracts straightforward, quick, and secure. The main goal of this project is to achieve mass adoption for blockchain through frictionless experiences based on layer-2 scalability technologies. Through the advancements in off-chain scaling methodologies and incentive-aligned crypto-economic designs, the Celer Network lets anybody swiftly construct, operate and use highly scalable decentralised apps. CelerX is also a new application from the Celer team that shows the Celer Network's rapid transaction procedure. It also comes with its own SDK and development portal.