Auth0 starts at $0/month on the Free plan.
Verified Sep 2026 from the official pricing page.
Is Auth0 worth the price?
Auth0's free tier at 25,000 MAUs is the most generous in the identity space, far ahead of Firebase Auth (free at 50K MAUs but with fewer features) and Clerk (500 MAUs free).
The Essentials plan at $35/month (B2C) or $150/month (B2B) is reasonable for early growth. The problem is the scaling curve: once you exceed base MAU limits, the $0.07/MAU overage rate creates exponential cost growth.
A B2C app with 50,000 MAUs pays $35 + $3,465 in overages = ~$3,500/month. The B2B plans are even steeper, Professional at $800/month with a hard cap of 5 enterprise SSO connections means your sixth enterprise customer forces an Enterprise contract (typically $10,000+/month).
Auth0 is excellent technology with a pricing model that penalizes growth, so plan your migration threshold carefully.
Pricing Plans
Free TrialFree
Getting started
- 7,500 MAUs
- Unlimited logins
- Social connections
- Custom domain
Essentials
$35/per month
Basic needs
- 7,500 MAUs included
- Action logs
- Custom DB connections
- Email support
Professional
$240/per month
Growing apps
- 10,000 MAUs included
- MFA
- Organizations
- SSO integrations
- Priority support
Enterprise
Custom
At scale
- Unlimited MAUs
- Enterprise MFA
- Adaptive MFA
- 99.99% SLA
- Dedicated support
Hidden Costs & Gotchas
Overage pricing at $0.07/MAU applies per user beyond the base limit. This was increased 300% from the previous $0.023/MAU rate, a 50,000-MAU B2C app on Essentials pays ~$3,500/month, not $35.
B2B Essentials limits you to 3 enterprise SSO connections and Professional to 5. Each enterprise customer that requires SSO consumes one connection, signing your sixth enterprise client forces an upgrade to Enterprise pricing (typically $10,000+/month).
SMS-based MFA is not included in the base price. At scale, SMS verification costs roughly $0.0083 per message, a 100,000-MAU app sending one MFA text per user per month adds ~$830/month.
The free plan lacks separate development and production environments. Running auth against production data during development is a real compliance and security risk that most teams eventually pay to fix.
Custom database connections and Machine-to-Machine (M2M) tokens are only available on Professional and above, not Essentials. Many B2B apps need M2M tokens for service-to-service auth.
Auth0 Actions (serverless extensibility) have execution limits that vary by plan. High-traffic apps may need to upgrade plans purely to avoid Action throttling, not for MAU reasons.
Migrating away from Auth0 is painful. User password hashes are not exportable in most configurations, meaning a migration requires forcing all users to reset passwords, a significant churn event.
Our Recommendation
startup
Start on Free, move to Essentials ($35/month B2C or $150/month B2B) when you need MFA or dev/prod separation. Calculate your projected MAU cost at $0.07/MAU before committing, if you expect to exceed 10,000 MAUs quickly, compare with Clerk's more linear pricing model.
enterprise
Enterprise pricing is custom but typically starts at $10,000+/month. Negotiate hard on MAU overage rates and SSO connection limits, Auth0 has flexibility here. Always get quotes from WorkOS and Okta Customer Identity simultaneously. The strongest leverage is the threat of migrating to an open-source solution like Keycloak or Supertokens.
freelancer
The free plan at 25,000 MAUs is unbeatable for side projects and MVPs. You get social login, passwordless auth, and custom domains at zero cost. Do not upgrade until you actually need MFA or separate environments.
small Business
B2B Professional at $800/month works until you hit the 5-SSO-connection ceiling. If enterprise SSO is your primary need, evaluate WorkOS ($49/connection/month), it scales more predictably for B2B use cases.
How Auth0 compares
4 of 6 direct competitors offer a free plan.
| Tool | Starting price | Free plan |
|---|---|---|
| Auth0 | $0/month | No |
| Okta | $6/user/month | No |
| Keycloak | Free | Yes |
| Ping Identity | $3/month | No |
| Firebase Authentication | Contact sales | Yes |
| Supabase | $25/month | Yes |
| Clerk | $1.67/month | Yes |
Auth0 Pricing FAQ
How much does Auth0 cost?
Auth0 starts at $0/month on the Free plan. It offers 3 paid tiers ranging from $0/month to $240/month.
Does Auth0 have a free plan?
Auth0 does not offer a permanent free plan. A free trial is available.
Does Auth0 offer a free trial?
Yes. Auth0 offers a free trial.
What is the cheapest Auth0 paid plan?
The cheapest paid plan for Auth0 is "Free" at $0/month. Key features include: 7,500 MAUs, Unlimited logins, Social connections.
What are alternatives to Auth0?
Alternatives to Auth0 include Okta, Keycloak, Ping Identity, Firebase Authentication. Keycloak is fully free. Okta starts at $6/user/month; Ping Identity starts at $3/month; Supabase starts at $25/month.
Auth0 alternatives
Direct competitors. Starting prices match the table above.
Sources
- Official Auth0 pricing — auth0.com/pricing (verified Sep 2026)
- Cite this data: Toolradar, Auth0 pricing verified Sep 2026, toolradar.com/tools/auth0/pricing
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