The Graph supports indexing data from 26 different blockchain networks, including Ethereum, NEAR, Arbitrium, Optimism, Polygon, Avalanche, Celo, Fantom, Moonbeam and IPFS. So far, its subgraphs are used by Uniswap, Synthetix, KnownOrigin, Gnosis, Balancer, Livepeer, DAOstack, Audius and Decentraland, according to a press release.