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Dev tools · September 30, 2021

SpiceDB – production-ready, open-source Google Zanzibar implementation

Open Source, Google Zanzibar-inspired database for scalably storing and querying fine-grained authorization data - Release v1.0.0 · authzed/spicedb

SpiceDB – production-ready, open-source Google Zanzibar implementation launched on September 30, 2021 with 16 votes, #1,162 of 2,941 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 5 years on.

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In plain words

SpiceDB is an open-source authorization system based on Google's Zanzibar design, built for production use. It enables developers to define and manage complex permission models for applications. The software handles access control decisions by storing relationships between users, resources, and permissions, then evaluating them against defined schemas. SpiceDB is designed for teams needing fine-grained, scalable authorization logic without building from scratch.

written from the facts on this page · September 2026

From the sources

For Authzed's first birthday, our gift isn't for us, but the community. SpiceDB is the most faithful implementation of Google's Zanzibar paper outside of the original system at Google. Developers create a schema that models their permissions requirements and use a client library to apply the schema to the database, insert data into the database, and query the data to efficiently check permissions in their applications. Leveraging a system like SpiceDB has become an industry best-practice and is being used to great success at companies large ( Google , GitHub, Airbnb ) and small ( Carta , Authzed ). As we develop SpiceDB, we will not only maintain compatibility with the original paper, but…from github.com

Does a similar job

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  • Permify – Open-source authorization service based on Google Zanzibar2022 · github.com · ▲122

    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 🎉 - Permify/permify

  • Topaz: open-source authorization combining the best of OPA and Zanzibar2022 · github.com · ▲132

    Cloud-native authorization for modern applications and APIs - aserto-dev/topaz

  • DrawDB – open-source online database diagram editor (a retro)2025 · drawdb.app · ▲263

    One year ago I open-sourced my very first 'real' project and shared it here. I was a college student in my senior year and desperately looking for a job. At the time of sharing it i couldn't even afford a domain and naively let someone buy the one i had my eyes on lol. It's been a hell of a year with this blowing up, me moving to another country, and switching 2 jobs. In a year we somehow managed to hit 26k stars, grow a 1000+ person discord community, and support 37 languages. I couldn't be more grateful for the community that helped this grow, but now i don't know what direction to take…

  • Online database diagram editor2024 · github.com · ▲311

    Hey all! I released drawDB about a month ago and now it's open source. I hope you find it useful. If you want to check out the app you can go to https://drawdb.vercel.app/ . Thank you:)

  • Spicedb-dev. Claude Code plugin that adds authorization as you buildApr 2026 · github.com · ▲5

    We built a Claude Code plugin that adds fine-grained authorization to apps. Works for creating new apps, adding features to existing apps, and migrating legacy authorization layers. The plugin helps design the permission model, write a SpiceDB schema, identify authorization points in the code base, generate SpiceDB client code, and test the authorization model. We designed the plugin around different modes of working with Claude Code: 1. Guided workflow. /spicedb-dev:plan is the single entry point for anyone unsure where to start. It scans your data model, produces an authorization…

  • Spice.ai2023 · spice.ai · ▲63

    Hi HN, we’re Luke and Phillip, and we’re building Spice.ai OSS - a lightweight, portable data and AI engine and powered by Apache DataFusion & Ballista for SQL query, hybrid-search, and LLM-inference across disaggregated-storage used by enterprises like Barracuda Networks and Twilio. With v2.0, you can add a real-time analytics node to your operational database with high-throughput native CDC replication. We first introduced Spice [1] on HN in 2021 and re-launched it on HN [2] in 2024 re-built from the ground up in Rust. In 2025 we launched Spice Cayenne [5], our acceleration and query…

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