> For the complete Linea documentation index, see [llms.txt](/llms.txt). > Agents can fetch this page as Markdown at [https://docs.linea.build/network/build/tools/data-indexers/subsquid.md](https://docs.linea.build/network/build/tools/data-indexers/subsquid.md). # Subsquid [Subsquid](https://subsquid.io/) is a decentralized indexing toolkit optimized for batch extraction and processing of large volumes of data, achieving indexing speed of up to 50k blocks per second. It currently serves historical on-chain data including event logs, transaction receipts, traces and per-transaction state diffs.