Permit.io
Permit.io provides authorization-as-a-service with a low-code policy management interface, RBAC/ABAC/ReBAC policy support, and a managed policy decision layer — enabling teams to ship fine-grained access control without building it from scratch.
Last updated 5/30/2026
Quick answer
What is Permit.io?
Short answer
Permit.io is an authorization platform that provides a managed policy decision point alongside a low-code UI for non-engineering stakeholders to manage access control policies. It supports RBAC (role-based), ABAC (attribute-based), and ReBAC (relationship-based, like Google's Zanzibar model) access control, enabling complex permission structures without custom authorization code. Under the hood, Permit.io uses Open Policy Agent (OPA) and OPAL for policy evaluation and distribution. A key differentiator is the Permit.io Editor — a visual interface for defining and modifying policies without writing Rego directly. Verify current pricing at permit.io.
- Best for
- Engineering teams that need to ship fine-grained authorization across their application and want both programmatic API access and a low-code interface for policy administrators to manage permissions without engineering involvement.
- When to choose
- Choose Permit.io when you need a managed authorization service with both developer APIs and a low-code UI for non-engineering policy administrators, support for complex ReBAC models alongside RBAC/ABAC, and prefer a managed service over self-hosting.
- When not to choose
- Avoid Permit.io if you need fully self-hosted authorization with no external dependencies (use Cerbos or OPA directly), if evaluation volume pricing at your scale is prohibitive, or if you want the largest open source community (OPA is more established).
- Related tools & categories
- Developer AuthenticationCerbosRun the IAM Stack Finder
Categories
Common use cases
- Fine-grained RBAC, ABAC, and ReBAC authorization in SaaS applications
- Multi-tenant authorization with per-tenant role and permission customization
- Relationship-based access control (Google Zanzibar model) for social-graph-style permissions
- Authorization policy management for non-engineering stakeholders via low-code UI
- Consistent authorization enforcement across microservices via a managed PDP layer
- Audit logging of authorization decisions for compliance
Strengths
- Low-code policy editor enables non-engineers to manage permissions without Rego expertise
- Supports RBAC, ABAC, and ReBAC — broader policy model coverage than most alternatives
- Built on OPA/OPAL open standards — avoids proprietary policy language lock-in at the evaluation layer
- Managed cloud service reduces self-hosting burden compared to Cerbos self-hosted
- Good developer experience and SDKs for common languages
Limitations & considerations
- Managed service dependency — not fully self-hostable (verify current self-host options with Permit.io)
- ReBAC model can become complex for very large-scale social graph scenarios
- Newer platform — verify production track record and enterprise references
- Pricing can increase with policy evaluation volume at scale
Pricing model summary
Permit.io offers a free tier for development. Paid tiers are based on monthly active users and policy evaluations. Verify current pricing at permit.io/pricing.
View vendor pricing page ↗Integrations
Fit
Alternatives & comparisons
Cerbos is an open source, self-hostable authorization policy engine that enables developers to define and evaluate fine-grained access control policies separately from application code.
Compare Permit.io vs Cerbos →Permit.io and its logo are trademarks of their respective owner. IDSync is an independent buyer resource and does not imply endorsement unless explicitly stated.