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AUTH0 ALTERNATIVES · B2B-FIRST

Auth0 alternatives for B2B SaaS (SSO/SCIM/Orgs)

A B2B-first shortlist focused on SAML SSO, SCIM, organizations, MFA, and audit logs. Unknown stays unknown until verified.

Shortlist

TOOLPRICING MODELSETUPSAML SSOSCIMOrganizationsMFAAudit logsNOTES
WorkOSper-connection / add-onsmedium✓✓✓??Strong B2B SSO + directory sync focus.
Clerkper MAU + B2B add-onslow✓?✓✓?Great DX; enterprise SSO can get pricey.
Microsoft Entra External IDbundle / enterprise licensinghigh✓✓✓✓✓Best if already on Microsoft stack.
Oktaenterprise licensinghigh✓✓✓✓✓Mature enterprise IAM; higher cost.
Keycloakself-host infra costhigh✓?✓✓?Powerful OSS; ops-heavy.
Zitadelcloud + self-hostmedium✓?✓✓?Modern auth; good multi-tenant story.
FusionAuthlicense + self-hostmedium✓✓✓✓?Auth platform with self-host option.
SuperTokensopen-source + paid add-onsmedium??✓✓?Dev-friendly; enterprise features vary.
Orycloud + OSS componentshigh?????Composable IAM primitives; needs engineering.
Authentikopen-source self-hostmedium✓?✓✓?Good OSS option; smaller ecosystem.
Firebase Authusage-basedlow???✓?Strong B2C baseline; weaker enterprise knobs.
AWS Cognitousage-basedmedium✓??✓?Good infra-native option; DX mixed.

Decision tree (B2B-first)

  1. Need SAML SSO + SCIM now? Start with WorkOS / Entra / Okta; keep Keycloak/FusionAuth for self-host paths.
  2. Need fast DX + orgs? Clerk is usually fastest to ship, but watch SSO pricing.
  3. Need self-host control? Keycloak / Authentik / FusionAuth (self-host) are the typical shortlist.
  4. Only need B2C basics? Firebase Auth / Cognito can work, but enterprise knobs are limited.

We keep feature flags conservative. Unknown stays unknown until verified.