GRT, also known as The Graph, is a decentralised platform and cryptocurrency that provides a new way to index and search blockchain data. It aims to make it easier for developers to build and launch decentralised applications (dApps) and web3 products. The Graph uses a network of nodes to process and index data from various blockchains, including Ethereum, and provide APIs that developers can use to access that data. This allows developers to build faster and more efficient dApps, without having to rely on slow and unreliable centralised data sources. GRT tokens serve as the native currency of The Graph network and are used to incentivise nodes to process and index data, as well as to reward developers for building and maintaining the network.