PureStake runs pools of Algorand nodes behind network- and application-level load balancers. These nodes are spread across regions and availability zones within cloud environments for high availability and fault tolerance. Each node is running algod in full archival and transaction indexer mode, which provides full and performant access to the node REST API. User API requests coming into the platform will be authenticated, authorized, accounted for, and checked against account API limits. Requests passing those checks will be routed to an available pool of nodes for handling. Capacity is managed and increased as necessary to handle overall request volume. The API environment is managed, monitored, updated, and secured 24 x 7 x 365.