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Clerk

clerk.com

MCPNo card

Hosted authentication and user management with prebuilt UI components

Free tier
Yes
Per month
Free – $300
MCP
Yes

Why it's here

Fast hosted UI, strong docs, native MCP and 50K free users make it an easy agent-built SaaS default.

Free tier

50,000 monthly retained users, unlimited apps, custom domain, 1-day logs

Setup

npm install @clerk/nextjs

Environment variables

  • NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY
  • CLERK_SECRET_KEY
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Last verified

Auth

#2 of 26

Fast hosted UI, strong docs, native MCP and 50K free users make it an easy agent-built SaaS default.

per monthHobbyFreePro$25+ usage; $20/mo billed yearlyBusiness$300+ usage; $250/mo billed yearlyEnterpriseCustom
Custom domain
MFA
SAML SSO
Passkeys
No vendor brand
Organizations
Roles & RBAC
SCIM sync
Audit logs
Free MAU50000 users/mo50000 users/mo50000 users/mo50000 users/mo
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