Clerk
Clerk provides a simple, flexible authentication solution for modern applications with support for multiple auth protocols and developer-friendly APIs.
What is Clerk?
Clerk offers free authentication for up to 50,000 monthly active users (increased from 10,000 in 2026). Pro plans start at $25/month with additional users charged at $0.02 per MAU beyond the 10,000 threshold. The platform supports SAML, OIDC, and Enterprise SSO across all tiers. Features include email verification, passwordless sign-in, two-factor authentication, and custom branding.
Pricing
Starting Price
Free
Free
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