Auth0, part of Okta, provides SSO, MFA, passwordless login, and 30+ SDKs for developers building authentication into web and mobile apps.
Category
Security
Pricing
Freemium, from Free (paid plans from $35/month)
Verified
Not yet
Last updated
July 18, 2026
Founded
2013
Headquarters
Bellevue, Washington, USA (part of Okta, Inc.)
Free PlanWeb AppAPIFreemium
Overview
Auth0 is an authentication and authorization platform founded in 2013 and acquired by Okta, Inc. in 2021. It gives developers a way to add login, SSO, and identity management to applications without building authentication infrastructure in-house.
Key Features
Auth0 provides Universal Login and embedded login, single sign-on, multi-factor authentication, and passwordless/passkey authentication. It also supports machine-to-machine authentication, fine-grained authorization, bot detection, breached-password protection, and custom Actions for extending authentication workflows.
Developers can integrate Auth0 using more than 30 SDKs spanning languages and frameworks including JavaScript, Swift, Kotlin, Angular, Node.js, PHP, React, Vue, ASP.NET, Python, and Spring.
Pricing
Auth0's free plan supports up to 25,000 monthly active users. Paid B2C plans start at roughly $35/month (Essentials) and $240/month (Professional), while B2B plans start higher, at roughly $150/month and $800/month respectively; Enterprise pricing is quote-based. Add-ons such as AI Agents and machine-to-machine tokens are billed separately.
Key Features
Universal Login and SSO — Centralized, single sign-on login experience across applications.
Multi-factor authentication — Configurable MFA including passwordless and passkey-based options.
Broad SDK coverage — 30+ SDKs across major languages and frameworks.
Machine-to-machine authentication — Token-based auth for service-to-service API access.
Fine-grained authorization — Granular permission control beyond basic role checks.
Attack protection — Bot detection and breached-password protection built in.
B2B organization management — Enterprise connections and organization-based access for B2B apps.
Pros & Cons
Pros
Generous free tier supporting up to 25,000 monthly active users
Very broad SDK and framework support
Enterprise-grade features like SSO, MFA, and attack protection
Backed by Okta's infrastructure with a claimed 99.99% uptime
Cons
Costs scale with monthly active users and can rise quickly at scale
Advanced features require Professional or Enterprise tiers
B2B pricing is notably higher than B2C pricing for comparable tiers
Pricing
Free $0/month Monthly
Essentials (B2C) From $35/month Monthly (500 MAU included)
Professional (B2C) From $240/month Monthly (500 MAU included)
Enterprise Contact us Custom
Frequently Asked Questions
Is there a free Auth0 plan?
Yes, the free plan supports up to 25,000 monthly active users.
Who owns Auth0?
Auth0 is owned by Okta, Inc., which acquired it in 2021.
What authentication methods does Auth0 support?
Passwordless login, multi-factor authentication, single sign-on, social login, and passkeys.
Does pricing differ for B2B vs B2C use cases?
Yes, Auth0 has separate B2C and B2B pricing tiers, with B2B plans starting at a higher price point.