Open-Source, Google Zanzibar Inspired Authorization Service
Hey HN, I recently shared my thoughts on why Google Zanzibar is a great solution for implementing authorization[1] and why we decided to build Warrant’s core authz service using key concepts from the Zanzibar paper. As I mentioned in the post, we recently open sourced the authz service powering our managed cloud service, Warrant Cloud[2], so I thought I’d share it with everyone here. Cheers! [1] https://news.ycombinator.com/item?id=36470943 [2] https://warrant.dev/
Open-Source, Google Zanzibar Inspired Authorization Service launched on June 29, 2023 with 7 votes, #1,793 of 4,655 launches that month and more than 50% of that year's launches. The site was still online in September 2026, 3 years on.
What it does
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. - warrant-dev/warrant
Does a similar job
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Permify – Open-source authorization service based on Google Zanzibar2022 · github.com · ▲122An 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 🎉 - Permify/permify
Topaz: open-source authorization combining the best of OPA and Zanzibar2022 · github.com · ▲132Cloud-native authorization for modern applications and APIs - aserto-dev/topaz
Topaz 0.30 – OSS authz service combining the best of OPA and Zanzibar2023 · aserto.com · ▲35Hey folks! As Topaz turns a year old, we just released a big update, including support for a new authorization schema language, a built-in visual console, REST APIs for the ReBAC directory, a full test harness, and many other improvements. Would love to get your feedback! Check out the blog post [0] for the complete details (including some cool screenshots), or clone / fork the repo here [1]. Many thanks! [0] https://www.aserto.com/blog/announcing-topaz-030 [1] https://github.com/aserto-dev/topaz
SpiceDB – production-ready, open-source Google Zanzibar implementation2021 · github.com · ▲16Open Source, Google Zanzibar-inspired database for scalably storing and querying fine-grained authorization data - Release v1.0.0 · authzed/spicedb
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