A blockchain indexer is a key piece of infrastructure required to power any Web3 ecosystem. It provides applications with access to a wide range of on-chain data through a flexible and optimized interface. One well-known example is The Graph, a popular blockchain indexer on Ethereum, which simplifies data availability for Web3 applications.

The Blockchain Indexer service is available on the following blockchains:

Maestro’s blockchain indexer is specifically optimized for UTXO ledger primitives and focuses on delivering both real-time data liveness and data accuracy. Blockchains operate as an event-driven system with probabilistic transaction finality, meaning the ledger’s "ground truth" isn't instantly finalized—it can take some time to reach global consensus.

Accessing “real-time” onchain data requires rigorous data integrity checks. Traditional solutions, like adding a block buffer to indexers, only mitigate rollbacks by providing outdated data.

Maestro has designed a system that handles rollbacks gracefully and in real-time, giving users live data without sacrificing data integrity. Let's take a closer look at the components that make up the indexer:

Accurate and live on-chain data is critical for delivering an optimal user experience in blockchain applications. Some common use cases for blockchain indexers include: