The Graph can be an indexing protocol for querying data for networks like Ethereum and IPFS, powering many applications in the two DeFi along with the broader Web3 ecosystem. Anybody can Make and publish open APIs, identified as subgraphs, that applications can question using GraphQL to retrieve blockchain data. https://financefeeds.com/copyright-academy-and-university-of-oulu-launch-blockchain-for-business-sustainability-course/