Indexer GraphQL

Indexer GraphQL is the Aptos interface for derived reads such as NFTs, Aptos Objects, and custom Move contract queries (Aptos API documentation). Use it when the application needs joins, filtering, or historical projections that are expensive or awkward through fullnode REST.

query AccountAssets($owner: String!) {
  current_fungible_asset_balances(where: {owner_address: {_eq: $owner}}) {
    asset_type
    amount
  }
}

Production GraphQL is an indexer service contract: version schemas, publish query examples, and alert on ingestion lag between Transaction Stream checkpoints and the database.