AuthZed Documentation

Everything you need to build with SpiceDB.

Relationship-based access control, the Google Zanzibar way: model a schema, write relationships, and call CheckPermission from your code. Quickstarts, schema modeling, client SDKs, and full gRPC and HTTP API references — for the open-source SpiceDB engine and the managed AuthZed platform.

SpiceDB

The open–source Zanzibar database — schema language, modeling, operations, and the gRPC / HTTP APIs.

Managed SpiceDB

Managed, hosted SpiceDB — Cloud and Dedicated, private networking, audit logging, and more.

Materialize New

Precomputed permissions and change streams — materialized permission sets for search, filtering, and reverse indexes at scale.

MCP

Model Context Protocol servers — connect AuthZed and SpiceDB to AI agents and assistants.

What’s new

Recent additions across the documentation.

Latest releases

Recent SpiceDB open–source releases.