Warrant (WorkOS)
Capability scores
Methodology →- Authentication
- 2.5
- SSO & Federation
- 2.5
- Authorization
- 4.5
- Lifecycle & Provisioning
- 2.5
- MFA & Passwordless
- 2.0
- Governance & Audit
- 3.5
- Developer Experience
- 4.5
- Deployment Flexibility
- 3.5
- Pricing Transparency
- 3.5
- Support & Ecosystem
- 4.0
Scored 0–5 against a published rubric. Independent analysis, no vendor sponsorship.
Overview
Warrant is a fine-grained authorization service, acquired by WorkOS in 2024, offering relationship-based access control inspired by Google's Zanzibar. It lets developers model and check permissions centrally instead of scattering authorization logic through application code.
What it is good at
Warrant provides a hosted authorization engine for ReBAC, RBAC, and ABAC patterns, with a clean API and low latency, and it fits naturally alongside the rest of the WorkOS enterprise-readiness stack (SSO, SCIM, audit logs), so B2B products can add fine-grained access control without building it.
Where it falls short
As a hosted service now within WorkOS, it is less suited to teams that require self-hosting or a cloud-neutral, standalone engine.
Pricing
Usage-based, within the WorkOS platform.
Best for, and who should look elsewhere
Choose Warrant for hosted, Zanzibar-style authorization, especially with WorkOS. Look elsewhere for self-hosted or standalone engines (see OpenFGA or Cerbos).
Bottom line
A developer-friendly relationship-based authorization service, now part of the WorkOS enterprise-readiness stack.
More Authorization vendors
All Authorization →- AuthZed4.3/5
- Styra / Open Policy Agent4.3/5
- OpenFGA4.2/5
- AWS Verified Permissions4.1/5
- Cerbos4/5
By SWI Community Team · Last evaluated 2026-07-03
Independent, community-driven analysis. No vendor sponsorship. Compiled from public research and community input and verified on a best-effort basis, so details may be incomplete or out of date. Scores are opinions, not advice. Trademarks belong to their owners; mention does not imply affiliation or endorsement. See the full disclaimer, or send corrections to [email protected].