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Authentication and authorization as a service for developers.
Auth0, now part of Okta, is an identity platform that lets developers add secure authentication and authorization to applications without building it themselves. Instead of writing and maintaining login, password reset, social sign-in, multi-factor authentication, and session security — all of which are easy to get dangerously wrong — teams drop in Auth0 via SDKs and APIs and get a production-grade identity layer.
It covers the breadth of customer and business identity: universal login, social and enterprise SSO (Google, Microsoft, SAML), passwordless and passkeys, MFA and adaptive/attack protection, role-based access control, and user management, with extensibility through Actions (custom code in the login flow). It supports both B2C (consumer apps) and B2B (multi-tenant SaaS) scenarios, which is why it is a default choice for startups and enterprises that would rather buy identity than build it.
Auth0 suits developers and companies adding auth to web, mobile, or API products. Pricing is based on Monthly Active Users (MAUs), with a generous free tier and paid B2C and B2B plans that scale with users, so cost grows as your active user base does.
Pricing Model
Based on MAUs, per month
Starting Price
$35/mo
Free Options
Free version, Free trial
Up to 25,000 monthly active users with core auth features.
From ~$35/month (500 MAUs). Consumer apps; scales with users.
From ~$240/month (1,000 MAUs). Advanced consumer identity.
From ~$150/month (500 MAUs). Multi-tenant SaaS identity.
Custom pricing with advanced security, SLA, and support.
| Feature | Free | B2C Essentials Popular | B2C Professional | B2B Essentials | Enterprise |
|---|---|---|---|---|---|
| Up to 25,000 MAUs | — | — | — | — | |
| Unlimited logins | — | — | — | — | |
| Social connections | — | — | — | — | |
| Passwordless | — | — | — | — | |
| 1 enterprise connection | — | — | — | — | |
| MFA & attack protection | — | — | — | — | |
| Custom domains | — | — | — | — | |
| Role-based access | — | — | — | — | |
| More social connections | — | — | — | — | |
| Scales by MAU | — | — | — | ||
| Everything in Essentials | — | — | — | — | |
| Enhanced MFA | — | — | — | — | |
| Advanced attack protection | — | — | — | — | |
| More admins | — | — | — | — | |
| Priority features | — | — | — | — | |
| B2B organizations | — | — | — | — | |
| Enterprise SSO connections | — | — | — | — | |
| Team management | — | — | — | — | |
| Multi-tenant support | — | — | — | — | |
| Custom MAU volume | — | — | — | — | |
| Advanced security & compliance | — | — | — | — | |
| 99.99% SLA | — | — | — | — | |
| Private deployment options | — | — | — | — | |
| Dedicated support | — | — | — | — |
Other
CRM
Finance
Communication
Authentication
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API Types
SDK Availability
Verify SDK availability in vendor's documentation.
Developer Features
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Compliance Standards
SOC 2 Type II
EnterpriseISO 27001
EnterpriseGDPR Compliant
GlobalHIPAA
HealthcarePCI DSS
FinanceCCPA
PrivacyFedRAMP
GovernmentCSA STAR
CloudDeployment & Data
Data Residency Options
Verify with vendor for your specific region requirements.
Enterprise-ready auth: SSO, SCIM, and user management APIs.
Drop-in authentication and user management for modern apps.
Developer-first authentication, passwordless, and fraud prevention.
User management and authentication built for B2B SaaS.
Quick comparisons
