Oso Cloud by Oso is an authorization as a service solution designed to centralize authorization logic and expose APIs for authorization questions. It allows applications to call it when authorizing a request without needing to send application data to Oso Cloud, thus avoiding data replication. Oso Cloud evaluates authorization requests against stored policies and can operate with data either centralized in Oso Cloud or kept in application databases. It is optimized for application authorization logic using its policy language, Polar, which supports various models like RBAC, ReBAC, and ABAC. Oso Cloud's architecture ensures high availability and low latency by deploying nodes at the edge across multiple regions and availability zones globally. It uses event sourcing for replication and can handle up to 1 million reads per second with less than 10 ms latency. Oso Cloud also provides a flexible data model called facts, which express application data in a format that complements Polar for efficient evaluation.
