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Subsquid

Overview

Subsquid is an indexing framework supporting both Substrate and EVM-based chains. It is extremely flexible and offers high syncing speeds.

Subsquid indexer projects (or "squids") can be made from templates either manually or with squid generation tools. The tools make ready-to-use indexer projects out of contracts' ABIs. The generated squids decode events and transactions of user-specified contracts, then serve the data over a GraphQL API or store it as a dataset on a filesystem. At the moment EVM/Solidity contracts are supported, with WASM/ink! contracts in the pipeline. Consider this route if your use case does not require any nontrivial transformations of blockchain data.

Please visit the main integrations section for more information about using Subsquid on Astar zkEVM.