The Graph can be an indexing protocol for querying data for networks like Ethereum and IPFS, powering many applications in both of those DeFi as well as broader Web3 ecosystem. Anyone can build and publish open APIs, named subgraphs, that applications can question using GraphQL to retrieve blockchain data. https://financefeeds.com/web3bays-blockchain-marketplace-explained-can-it-outperform-chainlink-polkadot-in-2025/