OneLogin provides enterprise SSO, directory integration, and OIDC/SAML-based authentication. Cerbos uses OneLogin's user roles, group memberships, and custom attributes from OIDC tokens to evaluate fine-grained authorization policies at the application layer.
Use OneLogin roles, groups, and custom attributes from OIDC tokens as principal attributes in Cerbos authorization policies
OneLogin syncs with Active Directory and LDAP, giving Cerbos policies access to directory-sourced group and role data
Users authenticate once through OneLogin SSO while Cerbos handles fine-grained resource-level authorization within each application
OneLogin handles authentication, confirming who a user is. Cerbos handles authorization, deciding what that user can do. Together they give you a complete access control stack without coupling identity logic to business rules.
Cerbos lets you write fine-grained, context-aware authorization policies in human-readable YAML. Policies are decoupled from application code so product and security teams can update permissions without a release cycle.
Because Cerbos runs as a stateless Policy Decision Point (PDP) next to your application, authorization checks are sub-millisecond and scale horizontally with your infrastructure.
OneLogin authenticates users via SSO and issues OIDC tokens containing roles, groups, and custom user attributes. Your application validates the token, extracts these claims, and passes them to Cerbos as principal attributes. Cerbos evaluates them against your policies alongside resource attributes to make authorization decisions.
Yes. OneLogin assigns roles to users and maps them to application-specific groups. These appear as claims in the OIDC token. Pass them to Cerbos as principal attributes, and your policies can use role and group membership for access control decisions.
No. OneLogin controls which users can access which applications through its SSO policies. Cerbos adds resource-level authorization within those applications. OneLogin determines whether a user can reach your app. Cerbos determines what they can do once they are there.



What is Cerbos?
Cerbos is an end-to-end enterprise authorization software for Zero Trust environments and AI-powered systems. It enforces fine-grained, contextual, and continuous authorization across apps, APIs, AI agents, MCP servers, services, and workloads.
Cerbos consists of an open-source Policy Decision Point, Enforcement Point integrations, and a centrally managed Policy Administration Plane (Cerbos Hub) that coordinates unified policy-based authorization across your architecture. Enforce least privilege & maintain full visibility into access decisions with Cerbos authorization.