Clerk pricing: tiers, seat costs, and hidden fees
Developer-first auth with generous free MAU allowance. SMS pass-through and billing percentage are the hidden cost drivers.
Public pricing tiers
Clerk cost calculator
For 10 seats on Pro, current public pricing implies $20 per month when annual pricing is available, or $25 month-to-month.
Hidden fees and quote risks
- MAU overage: $0.02/MAU above 50,000, scaling down to $0.012 at 10M+
- SMS pass-through: $0.01 per message in US/Canada
- B2B Authentication Enhanced add-on: $100/month
- Administration Enhanced add-on: $100/month
- Billing add-on charges 0.7% of billing volume
Enterprise notes
Enterprise tier annual-only with custom MAU allocation, negotiated SMS pricing, and dedicated support. Pricing is quote-only.
Closest alternatives
Other developer auth (ciam) tools buyers shortlist when they compare Clerk.
Sources
Pricing changes frequently. Confirm directly with the vendor before purchase.
Frequently asked questions
How much does Clerk cost?
Clerk pricing depends on its Flat tier plus MRU and SMS usage. The page lists public tiers and flags custom or usage-based items that require vendor confirmation.
What is the main hidden fee risk for Clerk?
MAU overage: $0.02/MAU above 50,000, scaling down to $0.012 at 10M+
Which Clerk alternatives should buyers compare?
Auth0, WorkOS, Stytch, Supabase Auth, Kinde are the closest alternatives most procurement teams compare against Clerk.