Auth0 has four plans in 2026: a Free tier up to 25,000 monthly active users, Essentials at $35 a month, Professional at $240 a month, and a contact-sales Enterprise tier. The headline numbers are only part of the picture. What drives the real bill is the combination of how the user count scales, which capabilities sit behind add-ons, and the limits that push you up a tier.
This guide breaks down what each plan includes, what costs extra, and where the cost curve bends, using Auth0's own published pricing. It is a companion to our best Auth0 alternatives guide. All figures are current as of June 2026; pricing changes, so confirm against Auth0's page before making a decision.
| Plan | Price | Active users | Notable inclusions |
|---|---|---|---|
| Free | $0 | Up to 25,000 MAU | Passwordless, unlimited social connections, 5 organizations, 1 enterprise connection, self-service SSO, SCIM, 1 custom domain, community support |
| Essentials | $35/month | Custom tiers from a small base | Pro MFA, role-based access per organization, 10 organizations, audit log streaming, separate prod and dev environments, standard support |
| Professional | $240/month | Custom tiers from a small base | Existing user database for logins, enterprise MFA, enhanced attack protection |
| Enterprise | Contact sales | Custom | 99.99% SLA, enterprise rate limits, advanced security and private deployment as add-ons |
The Free plan is genuinely generous at 25,000 users, and a 22-day trial of paid features runs before the Free plan activates. The decisions start once you outgrow it.
Auth0's paid plans do not publish a simple flat per-user rate. Instead, Essentials and Professional start at a small included user base and let you select a user tier, from 1,000 up to 100,000 or more, with the price rising as you move up. Beyond the published tiers, and for the Enterprise plan entirely, pricing is quote-based through sales.
The practical effect is that the $35 and $240 figures are starting points, not your bill at scale. A fast-growing app crosses user tiers as it grows, and the only way to know the cost at, say, 250,000 users is to talk to sales. That opacity is itself a planning problem for teams that need to forecast.
The bigger surprise is usually how many expected capabilities are add-ons rather than part of the base price. On Auth0's own plan comparison, these are billed on top:
Machine-to-machine tokens are capped at 1,000 on Free and Essentials and 5,000 on Professional, with an M2M add-on required beyond that. Auth for MCP and client-initiated backchannel authentication, both relevant to AI agents, are add-ons. Adaptive multi-factor, bot detection, and credential guard are add-ons. So are the highly regulated identity and FAPI security profiles, HIPAA business associate agreements, advanced extensibility, and private deployment. Each is reasonable on its own, but they add up, and they are easy to miss when you compare headline plan prices.
Separate from add-ons, several plan limits act as upgrade triggers. On Essentials and Professional in the B2C configuration, enterprise connections, self-service SSO, and SCIM require moving to a B2B plan, so the first enterprise customer that needs SAML can change your plan. Audit log retention is one day on Free, five on Essentials, ten on Professional, and thirty on Enterprise, which matters for compliance. Organizations are capped at five on Free and ten on the mid tiers. Tenants run one, three, and twelve before Enterprise. Any one of these can move you up a level before your user count does.
The honest read is that Auth0's headline price and its total cost are different numbers. The plan fee is predictable; the add-ons and tier jumps are where spend accumulates, and the Enterprise tier that removes the limits is quote-based. For a small project the Free tier is hard to beat. For a growing B2B product with enterprise customers, machine workloads, or compliance needs, the real cost is the base plan plus several add-ons plus a custom Enterprise contract, and it is hard to forecast until you are in it.
That unpredictability, more than any single price, is what sends teams to compare options. If that is you, our best Auth0 alternatives guide lays out the choices. For reference, MonoCloud is free up to 50,000 monthly active users and bills additional users at $0.015 each, with machine-to-machine tokens and mutual TLS included rather than added on. You can start building on MonoCloud for free or check the pricing page.