The most scalable and customizable permission server on the market. Fix your slow or broken permission system with Google's proven "Zanzibar" approach. Supports ACL, RBAC, and more. Written in Go, cloud native, headless, API-first. Available as a service on Ory Network and for self-hosters.
permissions iam acl authorization rbac access-control hacktoberfest abac policy-management permission-management zanzibar rebac fine-grained-permissions relation-tuples
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Updated
Dec 13, 2025 - Go