The Sequence Indexer Gateway API is a powerful tool for simultaneously
performing queries across multiple chains. By Leveraging Indexer, the Indexer
Gateway allows you to find and filter data across the Ethereum chains we
support.The API is not only modeled after Indexer, it actually uses Indexer behind the
scenes, so you can take your code that already works with Indexer and make it
multi-chain with just a few modifications.
The Indexer Gateway endpoints accept a list of network IDs (e.g.: [1, 137, 10]) or a list of network names (e.g.: ["mainnet", "polygon", "optimism"]).You can see the full list of supported networks
here.