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SubQuery is an open-source project that allows developers to index, transform, and query Substrate (Polkadot ecosystem) chain data to power their applications. SubQuery also provides free, production grade hosting of projects for developers, removing the responsibility of managing infrastructure, and letting developers do what they do best - build. SubQuery enables better dApps by making decentralized data more accessible. The project is inspired by the growth of data protocols serving the application layer, and its aim is to help Polkadot/Substrate projects develop better by allowing anyone to reliably find and consume data faster. Anyone can query and extract Polkadot network data in only minutes and at no cost. SubQuery plan to support all Substrate-compatible networks.

SubQuery is a decentralized data aggregation, indexing & querying layer between Layer-1 blockchains and decentralized applications. The protocol abstracts away blockchain data complexity with the SubQuery SDK, allowing developers to focus on deploying their core product without needlessly wasting efforts on custom backend technologies. The project is inspired by The Graph, an Ethereum protocol that gives customers the same kind of services using GraphQL and that slowly became one of the major pieces of the Ethereum ecosystem. Polkadot’s unique architecture means that SubQuery can focus on one network and then be able to support multiple current and future chains with ease. By putting in this effort now, even as Polkadot is still under development, SubQuery will be there ready to help the next generation of blockchain developers create the next big dApp. As Polkadot ecosystem is getting bigger and bigger, the market SubQuery is aiming at is growing at the same pace. While SubQuery services are already available for one to use, the actual launch of the network is scheduled for late 2022, and the team still has a lot of work ahead before reaching the full power of the protocol. The launch of the token associated with the protocol is scheduled for March 2022.

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