Oso's hosted authorization service, with policies written in its Polar language. Osoのクローズドな製品です。
SpiceDB、Permify、Ory Keto など。Oso Cloudの代替5件（Go）。置き換えの度合い、ライセンス、スター数、署名付きの最新リリースを比較できます。
| ツール | 置き換えの度合い | スター | ライセンス | 利用条件 | セルフホスト | 言語 | 最新リリース | 最終プッシュ |
|---|---|---|---|---|---|---|---|---|
| SpiceDB | 部分的 | 7.2k | Apache-2.0 | オープンソース | 可 | Go | v1.56.2 | 2026-10-18 |
| Permify | 部分的 | 6k | AGPL-3.0 | オープンソース | 可 | Go | v1.7.5 | 2026-10-15 |
| Ory Keto | 部分的 | 5.4k | Apache-2.0 | オープンソース | 可 | Go | v26.2.0 | 2026-09-04 |
| Cerbos | 部分的 | 4.6k | Apache-2.0 | オープンソース | 可 | Go | v0.56.0 | 2026-10-19 |
| Topaz | 部分的 | 1.4k | Apache-2.0 | オープンソース | 可 | Go | v0.33.22 | 2026-10-14 |
代替5件
Open Source, Google Zanzibar-inspired database for scalably storing and querying fine-grained authorization data
Relationship-based permissions in the style of Google Zanzibar, self-hosted instead of a hosted service.
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 🎉
Zanzibar-inspired fine-grained permissions on your own infrastructure.
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.
Zanzibar-style relationship-based permissions, self-hosted and exposed over gRPC and REST.
Cerbos is an open-core authorization management platform for authorizing every identity and governing every action across applications, gateways, workloads, and AI agents.
Declarative authorization policies evaluated by your own service instead of a hosted one.
Cloud-native authorization for modern applications and APIs
Policies and a relationship directory run on your own infrastructure.