Clerk
cloudFree up to 10k MAU
WorkOS
cloudFree up to 1M MAU
Agent Sdk
Token Delegation
Human In The Loop
Fga
Mcp Support
Async Authorization
Pricing
Free up to 10k MAU$25/mo ProCustom Enterprise
Free up to 1M MAUPay-as-you-go afterCustom Enterprise
Open Source
Self-Hosted
SDK Languages
javascripttypescript
javascripttypescriptpythongorubyjava
Frameworks
vercel-ailangchainnextjsremix
langchainvercel-ai
Compliance
soc2gdpr
soc2gdprhipaa
Best For
Next.js and React AI apps needing fast auth setup with prebuilt UI components
Enterprise SSO, M2M authentication, and fine-grained authorization for B2B agent products
Limitations
JavaScript/TypeScript only; no token delegation or FGA; not designed for complex agent authorization patterns
No dedicated agent SDK; FGA is strong but relatively new; async authz patterns require custom integration

Supported Not supported Unverified

Clerk and WorkOS both serve modern SaaS teams, but Clerk is optimized for React and Next.js frontend developer experience while WorkOS is a B2B enterprise SSO, SCIM, and MCP server authentication platform. Clerk wins on consumer-facing developer ergonomics and edge performance; WorkOS wins on enterprise readiness, B2B pricing, FGA, and agentic infrastructure.

Where WorkOS wins

  • Enterprise B2B readiness and SCIM. WorkOS offers SAML/OIDC SSO and SCIM Directory Sync for automated user lifecycle management. It includes a self-serve Admin Portal that lets enterprise IT teams configure their own connections, reducing onboarding friction. Clerk's B2B primitives are more opinionated and currently lack native SCIM provisioning.

  • Transparent B2B pricing at scale. WorkOS offers a generous free tier for up to 1 million monthly active users for basic user management via AuthKit. For enterprise features, it charges a flat $125 per month per SSO or Directory Sync connection, allowing B2B SaaS companies to align costs directly with enterprise customers onboarded.

  • Fine-Grained Authorization. WorkOS provides a Fine-Grained Authorization system that centralizes complex authorization logic, letting developers model resource-level access and Google Docs-style permissions. Clerk lacks an equivalent FGA service, relying on basic roles and custom claims embedded within user sessions.

Where Clerk wins

  • Superior developer experience for modern frameworks. Clerk provides framework-native SDKs and drop-in UI components such as <SignIn />, <UserProfile />, and <OrganizationSwitcher /> that integrate with Next.js, React, and Remix. This reduces frontend boilerplate and lets developers implement complete authentication flows in minutes.

  • Built-in B2C primitives and communication. Clerk includes email and SMS delivery for one-time passcodes and magic links, so you don't need to initially configure third-party providers like Twilio or SendGrid.

  • Edge and serverless optimization. Clerk is optimized for modern deployment architectures, featuring fast authentication, stateless JWT sessions, and middleware support for edge runtimes like Next.js Edge.

The agentic difference

WorkOS provides more mature infrastructure for Model Context Protocol servers and AI agent authentication. WorkOS supports OAuth 2.1, Dynamic Client Registration, and MCP support, enabling enterprise SSO into MCP servers. Its Fine-Grained Authorization service enforces resource-level rules critical for safe, least-privilege agent operations. Clerk only documents building MCP servers within Next.js and currently lacks DCR, enterprise SSO integration into MCP, and tool-level consent scopes. Clerk offers no dedicated AI agent governance or data scoping capabilities. Neither platform supports CIBA for asynchronous human-in-the-loop authorization workflows.

When to pick which

  • Pick Clerk when building a B2C application or a fast-moving React/Next.js project, because its drop-in UI components and modern session handling offer the fastest path to launch.

  • Pick WorkOS when selling to large enterprises, because its SAML SSO, SCIM Directory Sync, and self-serve Admin Portal pass enterprise IT reviews.

  • Pick WorkOS when building Model Context Protocol servers or needing fine-grained agent authorization, because its OAuth 2.1 support, DCR, and FGA provide the security architecture for agentic workflows.

Last verified: 2026-05-09