authzed / spicedb

Open Source, Google Zanzibar-inspired database for scalably storing and querying fine-grained authorization data

openfga / openfga

A high-performance and flexible authorization/permission engine built for developers and inspired by Google Zanzibar.

cerbos / cerbos

Cerbos is an open-core authorization management platform for authorizing every identity and governing every action across applications, gateways, workloads, and AI agents.