Satsuma is a blockchain indexing platform with drop-in support for hosted subgraphs that makes it easier to search and analyze data stored on a blockchain, helping developers gain deeper insights into the data such as the total value locked of a DeFi protocol. It features subgraph indexing with high reliability & low block lag, GraphQL API with high availability & low response times, advanced metrics for monitoring indexing and queries and flexible subgraph versioning system.