AuthCostAuth cost of ownership Weekly ledger
Vendor

WorkOS

Billing unit: MAU + connection — AuthKit free to 1M MAU; SSO and Directory Sync billed per connection with volume bands. Source: workos.com/pricing, checked 2026-10-30. Visit WorkOS

Answer · WorkOS cost by MAU (no SSO)

10k users: $0/mo on AuthKit · 50k users: $0/mo on AuthKit · 100k users: $0/mo on AuthKit.

As of 2026-10-30, from 19 verified plan rows. How we calculate this.

AuthKit free to 1M MAU then $2,500/mo per additional 1M. SSO and Directory Sync each: $125 (1–15), $100 (16–30), $80 (31–50), $65 (51–100).

WorkOS cost at 10k, 50k and 100k users

Plan10k users50k users100k users
AuthKit$0$0$0

Monthly USD, no SSO, list price. “—” = the vendor publishes no fixed self-serve price for that volume (custom / contact sales) or the plan caps below it.

More on WorkOS: WorkOS pricing · cheaper WorkOS alternatives · vs Clerk · vs Auth0 · vs Amazon Cognito · vs Stytch · vs Kinde · vs Supabase Auth · vs Logto

PlanBaseIncludedUnitOverageSSOStatusNotes
AuthKit$01000000MAU—0 incl. · +$125VerifiedAuthKit free to 1M MAU; +$2,500/mo per additional 1M. SSO and Directory Sync each use the connection ladder ($125→$65). Custom domain $99/mo.
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