SpiceDB Enterprise by AuthZed is a commercially licensed, managed version of the open-source SpiceDB database system, designed for storing and evaluating access control lists. It offers a unified data model and configuration language for defining access control policies across various services. SpiceDB Enterprise ensures authorization decisions maintain causal ordering of user actions, providing consistency during changes to access control lists and object contents. It is built to handle large-scale authorization requests while maintaining low latency and high availability. The system provides additional enterprise functionality for managing access control and authorization in applications and services.