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authzed /spicedb

Star6.4k

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

kubernetes security distributed-systems database permissions acl authorization rbac cloud-native entitlements abac security-tools ciam fga fine-grained-access-control zanzibar fine-grained-authorization rebac

UpdatedFeb 20, 2026
Go

An open-source authorization as a service inspired by Google Zanzibar, designed to build and manage fine-grained and scalable authorization systems for any application. — Permify is now part of FusionAuth 🎉

kubernetes golang security permissions acl grpc distributed authorization permission rbac cloud-native access-control abac ciam fga least-privilege fine-grained-access-control zanzibar rebac

UpdatedFeb 20, 2026
Go

ory /keto

Star5.3k

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

UpdatedFeb 20, 2026
Go

openfga /openfga

Star4.8k

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

go golang security permissions authorization rbac entitlements hacktoberfest abac fga pbac fine-grained-access-control zanzibar fine-grained-authorization rebac openfga

UpdatedFeb 20, 2026
Go

warrant-dev /warrant

Star1.3k

Warrant is a highly scalable, centralized authorization service based on Google Zanzibar. Use it to define, enforce, query, and audit application authorization and access control.

golang permissions iam acl authorization rbac role-based-access-control entitlements access-control abac authz ciam zero-trust fine-grained-access-control zanzibar fine-grained-authorization rebac pricing-tiers relationship-based-access-control fgac

UpdatedDec 5, 2025
Go

aserto-dev /topaz

Star1.3k

Cloud-native authorization for modern applications and APIs

api golang security authorization opa rbac cloud-native access-control abac zanzibar rebac

UpdatedFeb 19, 2026
Go

embesozzi /keycloak-openfga-workshop

Star131

Keycloak integration with OpenFGA (based on Zanzibar) for Fine-Grained Authorization at Scale (ReBAC)

api oauth2 workshop keycloak api-gateway roles auth0 authorization okta access-management user-identity apisix zanzibar fine-grained-authorization rebac openfga

UpdatedJul 12, 2024
JavaScript

uatuko /ruek

Sponsor

Star99

🔐 Lightning fast, global scale authorization service without the overhead of a yet another DSL.

cmake grpc authorization rbac access-control abac fga zero-trust cpp20 least-privilege zanzibar fine-grained-authorization rebac

UpdatedFeb 14, 2026
C++

daangn /graplix

Star90

Authorization framework for implementing Relation-based Access Control (ReBAC) with the Resolver (Inspired by GraphQL)

graphql resolver authorization rebac relation-based-access-control

UpdatedFeb 20, 2026
TypeScript

authzed /zanzibar-annotated

Star85

Google's Zanzibar paper annotated for folks outside of Google

security documentation distributed-systems google database scale latency graph-database access-control research-paper zanzibar fine-grained-authorization rebac

UpdatedFeb 14, 2026
TypeScript

theronic /eacl

Star71

🦅 EACL: Enterprise Access ControL is a ReBAC Authorization system based on SpiceDB, built in Clojure and backed by Datomic

clojure permissions authorization datalog datomic access-control eacl spicedb rebac

UpdatedFeb 15, 2026
Clojure

pthm /melange

Star45

OpenFGA-to-PostgreSQL authorization compiler. Generates specialized SQL functions from .fga schemas that query your existing tables. Zero sync, always consistent.

database postgresql permissions authorization rbac fga zanzibar fine-grained-authorization rebac openfga

UpdatedFeb 8, 2026
Go

Cheater121 /rbacx

Star36

RBAC/ABAC/ReBAC policy engine for Python with policy sets, condition DSL, and hot reload

python flask security django django-rest-framework authorization rbac access-control abac asgi policy-engine starlette fastapi rebac litestar rbacx

UpdatedOct 23, 2025
Python

authzed /spicedb-kubeapi-proxy

Star35

Secure access to the Kubernetes API using SpiceDB

kubernetes security proxy permissions acl authorization cloud-native fga fine-grained-access-control zanzibar spicedb rebac

UpdatedFeb 1, 2026
Go

Keyrunes /keyrunes

Star32

⚔️ A modern, attribute-aware access control engine written in Rust. Supports RBAC, ABAC, ReBAC, PBAC, and fine-grained multi-tenant policies. Built to rival Keycloak's authorization module.

api rust saml oauth2 authentication permissions rust-lang rbac rustlang oidc abac pbac rebac keyrunes