AuthCostAuth cost of ownership Weekly ledger
Methodology

How the ledger is kept.

  1. Prices come only from each vendor’s own pricing page. Each row stores the source URL and check date.
  2. A row is verified when the figure was read on that date. We never estimate a missing price.
  3. Estimated monthly cost = base + user overage (MAU/MRU bands) + SSO connection fees from the published ladder. Cognito/Supabase SAML uses a federated-MAU input. Logto token overage is noted but not assumed from MAU.
  4. Auth0 paid self-serve prices are published at ≤500 MAU; scenarios above that omit Auth0 paid rows rather than invent a tier.
  5. Stytch MAU overage rate was not printed as a fixed USD figure on the checked page — left blank.
  6. A weekly script diffs every source page; confirmed changes enter the price log.