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Open Source Authorization
SpiceDB
Documentation
Open source, globally consistent, fine-grained authorization system inspired by Google Zanzibar. Community-driven Chinese documentation.
definition user {}
definition document {
relation owner: user
relation editor: user
relation viewer: user
permission edit = owner + editor
permission view = edit + viewer
}Why SpiceDB
Authorization infrastructure designed for modern applications
Schema Driven
Declaratively define authorization with a schema language covering RBAC, ABAC, ReBAC and more
Global Consistency
Built on Google Zanzibar, providing causally consistent permission checks via ZedTokens
High Performance
Sub-millisecond permission checks with horizontal scaling, battle-tested in production
Auditable & Secure
Built-in Watch API for real-time change tracking with full access control audit support
Multi-Language SDKs
Official client libraries for Go, Python, Java, Ruby, Node.js and more
Chinese Community
Community-driven Chinese documentation and hands-on tutorials
Join the CommunityDiscuss authorization modeling with developers worldwide