Stay free if you only need basic features. Upgrade if you need advanced features. Most solo builders can start free.
Yes. Auth0 offers a free tier that supports up to 25,000 monthly active users with unlimited social connections, 2 enterprise connections, and Universal Login. This is sufficient for many production applications, especially early-stage startups and internal tools.
Auth0 (Okta Customer Identity Cloud) is aimed at developers building customer-facing login for SaaS, e-commerce, and consumer apps. Okta Workforce Identity targets IT administrators managing employee access to internal corporate apps. Auth0 offers developer SDKs, extensive customization, and embeddable login, while Okta Workforce focuses on directory management, lifecycle automation, and IT governance.
Yes. Auth0 supports passkeys via WebAuthn, magic-link email login, and SMS-based passwordless authentication. Passkeys enable phishing-resistant biometric and hardware key authentication using the FIDO2 standard, and can be enabled as a primary factor or as an MFA option alongside traditional credentials.
Yes. Through the Auth for GenAI initiative, Auth0 provides SDKs, patterns, and guidance for issuing scoped tokens to AI agents acting on behalf of users. This includes async human-in-the-loop authorization for sensitive actions and secure credential management for agents calling third-party APIs.
Auth0 does not hard-cut access when you exceed your plan's MAU limit. Instead, overages are billed at a per-MAU rate that varies by plan tier. You receive notifications as you approach your limit, and can upgrade your plan or negotiate custom MAU commitments on Enterprise plans to manage costs.
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Last verified March 2026