The Enterprise OPA Platform by Styra is a policy-based access management solution that provides distributed authorization enforcement for applications, data, and APIs. Built as a complete authorization system, it deploys policy engines in various topologies including centralized, distributed, or embedded configurations. The platform combines just-in-time data for dynamic access decisions with a policy framework that supports multiple access control models including RBAC, ABAC, and ReBAC. It integrates with data streams, identity providers, directory services, databases, and secrets managers to enable context-aware access control across cloud environments, API gateways, monoliths, and microservices, while providing centralized authorization management through a policy control plane that configures and monitors distributed policy engines.