Clerk
Auth & InfrastructureDrop-in authentication with beautiful prebuilt UI components, user management dashboard, multi-factor auth, and organization support — 5-minute setup.
Clerk is a modern authentication platform that provides beautiful, pre-built UI components for sign-up, sign-in, and user profiles with SDKs optimized for React, Next.js, Remix, and Astro, enabling production-ready auth in minutes. Beyond basic authentication, it includes MFA, social OAuth, passwordless auth, session management, user impersonation, and built-in organization management with roles, permissions, and multi-tenancy for B2B SaaS applications. The free tier includes 10,000 MAUs with the Pro plan starting at $20/month, though costs can escalate with add-ons for enterprise SSO ($85-100/month each) and the Business plan at $250/month for additional dashboard seats.
Best for
Modern web applications and B2B SaaS products that need production-ready authentication with minimal setup time and beautiful pre-built UI components.
Last updated: February 23, 2026
17.5/50
Overall Score
API Quality
8/10
GTM Relevance
9.5/20
PricingFreemium
Complexityhard
Learningeasy
Visit clerk.com →API Analysis
REST API
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Webhooks
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GraphQL
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OAuth
✓
Available
stripegmail
Pricing
freemiumFree Tier
Free tier with 10,000 MAUs, Pro plan $20/mo (annual) or $25/mo (monthly) + $0.02/MAU, Business $250/mo, Enterprise custom pricing. B2B add-on $85-100/mo for enhanced features
Strengths & Weaknesses
Strengths
Exceptional developer experience with pre-built UI components that work out-of-the-box in minutes
Comprehensive authentication features including MFA, social OAuth, passwordless, and custom session management
Built-in multi-tenancy and organization management ideal for B2B SaaS applications
Generous free tier with 10,000 MAUs making it cost-effective for startups and small projects
Modern framework support with optimized SDKs for React, Next.js, Remix, and other popular tools
Weaknesses
Costs can escalate quickly with add-ons - enhanced features like unlimited impersonation, multiple SAML connections, and advanced B2B features each cost $85-100/mo additional
Some users report frustration with low usage caps and the need for multiple add-ons to unlock full functionality
Enterprise features like SAML SSO are metered and can become expensive for applications with many connections
Dashboard seat limitations - more than 3 seats requires Business plan at $250/mo
Alternatives
Reviews
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FAQ
What is Clerk?
Clerk is a modern authentication platform that provides beautiful, pre-built UI components for sign-up, sign-in, and user profiles with SDKs optimized for React, Next.js, Remix, and Astro, enabling production-ready auth in minutes. Beyond basic authentication, it includes MFA, social OAuth, passwordless auth, session management, user impersonation, and built-in organization management with roles, permissions, and multi-tenancy for B2B SaaS applications. The free tier includes 10,000 MAUs with the Pro plan starting at $20/month, though costs can escalate with add-ons for enterprise SSO ($85-100/month each) and the Business plan at $250/month for additional dashboard seats.
Is Clerk free?
Yes, Clerk offers a free tier. Free tier with 10,000 MAUs, Pro plan $20/mo (annual) or $25/mo (monthly) + $0.02/MAU, Business $250/mo, Enterprise custom pricing. B2B add-on $85-100/mo for enhanced features
What are Clerk alternatives?
Popular alternatives to Clerk include Auth0, Supabase Auth, Firebase Authentication, WorkOS, Auth.js (NextAuth.js), Better Auth. Compare features, API quality, and pricing on GTM Tools.
Does Clerk have an API?
Clerk has limited API support.
Who is Clerk best for?
Modern web applications and B2B SaaS products that need production-ready authentication with minimal setup time and beautiful pre-built UI components.