Polygon (MATIC) is an Ethereum token that powers the Polygon Network — a protocol and framework for building and connecting Ethereum-compatible blockchain networks. Polygon is what’s known as a Layer-2 solution, designed to help scale the Ethereum network and improve its functionality. The protocol aims for faster, cheaper Ethereum transactions using sidechains, blockchains that run like speedy HOV lanes alongside the Ethereum main chain.
To use Polygon, you can “bridge” some of your crypto over to Polygon (using the official Polygon Bridge), and then interact with a wide range of popular crypto apps that were once exclusive to the main Ethereum blockchain.
Users can deposit Ethereum tokens to a Polygon smart contract, interact with them within Polygon, and then later withdraw them back to the Ethereum main chain. The MATIC token is used to pay transaction fees and participate in proof-of-stake consensus.