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A database system for managing security-critical permissions checking. Inspired by Google's Zanzibar paper.

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SpiceDB

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SpiceDB is an open source database system for managing security-critical application permissions inspired by Google's Zanzibar paper.

Developers create a schema that models their permissions requirements and use any of the official or community mantained client libraries to apply the schema to the database, insert data into the database, and query the data to efficiently check permissions in their applications.

Features that distinguish SpiceDB from other systems include:

Have questions? Join our Discord.

Looking to contribute? See CONTRIBUTING.md.

Want to learn more about Zanzibar? Read the annotated paper with our commentary.

You can find issues by priority: Urgent, High, Medium, Low, Maybe. There are also good first issues.

Why SpiceDB?

Verifiable Correctness

The data used to calculate permissions have the most critical correctness requirements in the entirety a software system. Despite that, developers continue to build their own ad-hoc solutions coupled to the internal code of each new project. By developing a SpiceDB schema, you can iterate far more quickly and exhaustively test designs before altering any application code. This becomes especially important as you introduce backwards-compatible changes to the schema and want to ensure that the system remains secure.

Optimal Flexibility

The SpiceDB schema language is built on top of the concept of a graph of relationships between objects. This ReBAC design is capable of efficiently supporting all popular access control models (such as RBAC and ABAC) and custom models that contain hybrid behavior.

Modern solutions to developing permission systems all have a similar goal: to decouple policy from the application. Using a dedicated database like SpiceDB not only accomplishes this, but takes this idea a step further by also decoupling the data that policies operate on. SpiceDB is designed to share a single unified view of permissions across as many applications as your organization has. This has strategy has become an industry best-practice and is being used to great success at companies large (Google, GitHub, Airbnb) and small (Carta, Authzed).

Getting Started

Installing SpiceDB

Developing your own schema

Integrating with your application

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A database system for managing security-critical permissions checking. Inspired by Google's Zanzibar paper.

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