Auth0
Developer-friendly authentication and authorization platform for any application
Founded
2013
Starting Price
$00
Category
Developer Tools
Last updated March 3, 2026
About Auth0
Auth0 is a modern authentication and authorization platform providing secure identity management for web, mobile, and API applications. It offers universal login, SSO, MFA, passwordless auth, and RBAC — scaling from startups to enterprise with 25K free MAU.
Pros & Cons
Pros
- Developer-friendly with quick setup in just a few lines of code and excellent documentation
- Highly scalable enterprise-grade infrastructure with 99.99% SLA option
- Flexible with 30+ social provider integrations and extensive customization options
- Comprehensive security including advanced MFA, breached password detection, and compliance support
Cons
Key Features
Universal Login
Centralized, customizable authentication interface with multiple login methods and branded forms
Single Sign-On (SSO)
Access multiple applications with one login via enterprise federation, SAML, and social providers
Multi-Factor Authentication
Adaptive MFA with push notifications, OTP, biometric sensors, and seamless user experience
Passwordless Auth
Login flows via one-time passwords, magic links, push notifications, or biometric sensors
M2M Authentication
Secure automated exchanges between devices, services, and AI agents for IoT and APIs
Role-Based Access Control
Fine-grained authorization and permission management with role definitions and policies
Breached Password Detection
Proactive credential protection with automated alerts and security breach monitoring
Pricing
Free
$00
- Up to 25,000 monthly active users
- Password & social auth
- Branded login forms
- Basic security
Essential
$23/month
Best For
Enterprise Identity Management
Implement SSO, advanced security, and compliance (HIPAA, SOC 2) across all organizational applications
SaaS Multi-Tenancy
Build multi-tenant B2B applications with customer identity and access management at scale
Startup Authentication
Rapidly implement secure auth for new applications with the generous 25K MAU free tier
API & Machine Security
Secure API endpoints and machine-to-machine integrations with token-based authentication
