Algorand Indexer REST API

The Algorand Indexer 2.0 API is a ledger analytics REST API backed by a PostgreSQL database populated by the algorand-indexer daemon. It provides rich historical search across transactions, accounts, assets, applications, blocks, and block headers with flexible query parameters including address, asset ID, application ID, round ranges, note prefixes, and more. Responses include cursor-based pagination for traversing large result sets. Public archival indexer nodes are available at mainnet-idx.4160.nodely.dev (and legacy algonode.cloud endpoints) free of charge.