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Top Blockchain Indexers

Find the best dev tools for your blockchain project faster with the ultimate web3 library

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Solana indexer

Solana indexerSmall SolanaSOL

Transaction indexing framework for smart contracts.
TrueBlocks

TrueBlocksSmall EthereumETH

Lightweight indexing for any EVM-based blockchain.
Eth-index

Eth-indexSmall EthereumETH

An indexer for events on the Ethereum blockchain.
Ethereum ETL

Ethereum ETLSmall EthereumETH

Python scripts for ETL (extract, transform and load) jobs for Ethereum.
Apibara

ApibaraSmall EthereumETH

Open source platform to stream and transform on-chain data

What is a Blockchain Indexer?

A Blockchain Indexer is a specialized software tool designed to extract, transform, and store data from a blockchain in a format that's more accessible and easily queryable. Since blockchains naturally store data in a linear and cryptographic manner, retrieving specific data points can be resource-intensive and slow. An Indexer addresses this by parsing the blockchain's raw data, extracting pertinent information, and organizing it in a structured database. This transformation makes data retrieval faster and more developer-friendly.

Features of a Blockchain Indexer

  • Structured Data Storage: An Indexer transforms linear blockchain data into structured databases such as SQL or NoSQL, enabling efficient queries.
  • Real-time Monitoring: Many Indexers process data in real-time, ensuring the database remains current as the blockchain grows.
  • Advanced Query Capabilities: With the data indexed, developers can execute complex queries or aggregations, tasks that are cumbersome on the raw blockchain data.
  • Access to Historical Data: An Indexer provides a straightforward method to retrieve historical blockchain data, from transaction histories to past contract interactions.
  • Data Enrichment: Beyond mere indexing, some Indexers enhance data by decoding transaction details, offering token metadata, or providing analytical insights.
  • API Integration: Several Blockchain Indexers present APIs, facilitating seamless data retrieval for developers and integration into applications or analytical platforms.

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