WorkOS

WorkOS revolutionizes enterprise authentication for B2B SaaS applications by providing production-ready APIs for the identity and access management features that enterprise customers demand. Rather than forcing developers to build complex SSO integrations, directory synchronization, and compliance features from scratch, WorkOS delivers these enterprise requirements through clean, modern APIs that integrate in hours instead of months.

The platform specifically addresses the "enterprise readiness gap" that prevents many growing SaaS companies from closing large deals. Enterprise procurement teams routinely require SAML SSO integration, SCIM user provisioning, comprehensive audit logging, and fine-grained access controls before approving SaaS purchases. Building these features internally typically consumes 6-12 months of engineering time and requires deep expertise in identity protocols, security standards, and enterprise integration patterns.

WorkOS's SSO implementation supports all major enterprise identity providers including Okta, Microsoft Entra ID (Azure AD), Google Workspace, OneLogin, PingIdentity, and ADFS through both SAML and OIDC protocols. The platform handles the notorious edge cases that break homegrown SSO implementations: identity provider metadata rotation, assertion parsing variations, certificate rollover, multi-tenant configuration, and the dozens of subtle protocol variations across different enterprise environments.

Directory Sync provides real-time user lifecycle management through SCIM 2.0 integration with enterprise HR systems and identity providers. When employees join, leave, or change roles in a customer's organization, these changes automatically propagate to your application without manual intervention. This eliminates the operational burden of user management while ensuring access remains current and secure.

AuthKit represents WorkOS's complete authentication solution, combining enterprise SSO capabilities with modern consumer authentication patterns. It provides email/password authentication, social login (Google, Microsoft, GitHub), magic link authentication, multi-factor authentication, and passkey support through a single integration. This unified approach means developers can start with simple authentication for early customers and seamlessly upgrade to enterprise SSO as they move upmarket.

The Admin Portal delivers a white-labeled, embeddable interface that enterprise IT administrators use to configure their own SSO connections, directory sync settings, and organization policies. This self-service capability transforms enterprise onboarding from a weeks-long support process involving multiple engineering touchpoints into a self-service experience that completes in minutes. The portal can be hosted on your custom domain and styled to match your brand identity.

Fine-Grained Authorization (FGA) extends WorkOS beyond authentication into sophisticated authorization scenarios. Built on Google's Zanzibar model, FGA enables complex permission systems like role-based access control (RBAC), attribute-based access control (ABAC), and relationship-based permissions. Authorization decisions are embedded directly in access tokens, enabling instant permission checks without additional API calls.

Audit Logs provide enterprise-grade activity tracking with structured event logging, real-time streaming to SIEM systems, and flexible export capabilities. The system captures user actions, administrative changes, and security events in a format that meets compliance requirements for SOC 2, ISO 27001, and industry-specific regulations.

WorkOS differentiates from broader identity platforms like Auth0 or Okta by focusing specifically on the enterprise features that B2B SaaS companies need to sell to large organizations. While Auth0 provides comprehensive identity management across all use cases, WorkOS optimizes for the specific scenario of adding enterprise readiness to an existing SaaS application. This focus enables deeper specialization in enterprise integration patterns, more predictable pricing aligned with B2B growth metrics, and features like the Admin Portal that are purpose-built for B2B SaaS customer onboarding.

The platform's pricing model reflects this B2B focus, with the first 1 million monthly active users free for AuthKit and connection-based pricing for enterprise features. This structure allows startups to integrate enterprise authentication early in their development lifecycle and only pay as they close enterprise deals, aligning costs with revenue generation.