The Blockchain Indexer API provides fast, structured access to on-chain data for Cardano and is designed for developers building wallets, explorers, dashboards, and blockchain-integrated apps. From tracking addresses and transactions to inspecting blocks and UTXOs, the Indexer API offers a highly-performant and developer-friendly interface for building real-time blockchain experiences without running your own node or maintaining complex infrastructure.

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Key Features

  • Address Statistics & UTXOs: Query the current balance, UTXOs, and transaction summaries for any blockchain address.
  • Transaction Lookup: Retrieve transaction details including inputs, outputs, confirmations, and block inclusion.
  • Block Explorer Data: Fetch block metadata by height, hash, or timestamp—including size, miner, difficulty, and transaction count.
  • Token & Asset Metadata: Surface custom token info, metadata, and transfer activity across tracked chains.
  • Indexing & Activity Summaries: Understand how an address or block is being used—number of inputs, outputs, sats in/out, and total movement.

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Key Benefits for Developers

The Blockchain Indexer API allows developers to access real-time blockchain data through simple REST endpoints without the burden of managing infrastructure. It’s built on Maestro’s high-performance backend, delivering low-latency and high-throughput responses that scale with your application. JSON responses are consistently structured for clarity, making them easy to plug into dApps, analytics platforms, or frontend dashboards. This API is trusted in production by wallets, explorers, and fintech applications that depend on reliable and accurate chain data.