Cerbos
Free tier
Cerbos is an authorization management platform built around an open source policy decision point (PDP). It enforces fine-grained RBAC, ABAC, PBAC, and ReBAC policies for applications, APIs, workloads, and AI agents.
Authorization
Fine-grained authorization and policy engines — what identities are allowed to do.
2 vendors ·
Quick answer
What is Authorization?
Short answer
Authorization platforms decide what an already-authenticated identity — human, workload, or AI agent — is allowed to do. They externalize RBAC, ABAC, PBAC, and ReBAC policy from application code into policy engines that are testable, auditable, and consistently enforced across services, APIs, and infrastructure.
- Best for
- Engineering and platform teams whose permission logic has outgrown hard-coded role checks, or who need consistent access decisions across many services, gateways, data platforms, and AI agents.
- When to choose
- Compare policy language ergonomics, supported models (RBAC/ABAC/PBAC/ReBAC), decision latency, data enrichment at decision time, audit logging, and self-hosted vs managed control planes.
- When not to choose
- Skip Authorization tooling if a broader IAM platform already covers your needs and you don't have category-specific requirements.
- Related tools & categories
- Non-Human IdentityAI Agent IdentityRun the IAM Stack FinderBrowse all vendors
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Top vendors in Authorization
Permit.io
Free tier
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.
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