WorkOS AuthKit Alternative: Complete B2B + B2C Auth | Logto
WorkOS AuthKit alternative with lower SSO costs and an open-source core
WorkOS AuthKit and Logto both cover consumer sign-in, organizations, and enterprise SSO. Logto adds enterprise SSO at $48 per connector per month, a choice of cloud data region, an open-source core, and self-hosting.
Why teams look for WorkOS alternatives
WorkOS started with standalone Enterprise SSO and Directory Sync APIs, then launched AuthKit in November 2023. AuthKit is now a full authentication platform. It supports hosted or custom sign-in, user management, organizations, and roles. It also includes MFA, passkeys, and session controls. The differences are in pricing, deployment, and control. WorkOS charges separately for production enterprise connections, its public materials describe a US-based hosted service, and its User Management backend is not publicly documented as a self-hosted product.
| Motivation | What it looks like in practice |
|---|---|
| A large free MAU allowance with paid production add-ons | AuthKit includes email and password, social OAuth, and Magic Auth for up to 1M monthly active users. MFA and passkeys are included too. A production Custom Domain add-on for hosted AuthKit costs $99 per month. Enterprise SSO, Directory Sync, and SIEM streaming are priced separately, so a team can start paying for production and enterprise requirements before its usage exceeds the MAU allowance. |
| Enterprise costs rise with each connection | Enterprise SSO starts at $125 per production connection per month for 1–15 connections. Directory Sync uses the same published tiers and is billed separately. At the entry tier, one SSO connection plus one Directory Sync connection costs $250 per month. WorkOS lowers the rate as volume rises, reaching $50 per connection for 101–200. Logto Enterprise SSO is a $48-per-connector monthly add-on on Pro. |
| Different boundaries for hosting and control | AuthKit covers core authentication flows, session controls, and native OAuth or PKCE flows. WorkOS manages its user store and authentication service. Logto covers B2C and B2B authentication through an open-source core that can run in Logto Cloud, Private Cloud, or your own environment. |
| Public materials describe a US-based hosted service | WorkOS on-prem guidance covers customer applications that still communicate with WorkOS APIs. Air-gapped applications need a separate authentication path. Logto Cloud offers tenant data regions in Europe, West US, Australia, and Japan. Logto Private Cloud provides a dedicated Azure deployment, with target-region availability confirmed case by case. Self-hosting keeps the service on your infrastructure. |
| The hosted authentication backend is proprietary | WorkOS publishes AuthKit frontend examples, SDKs, and an OpenAPI specification. Its User Management and authentication backend is proprietary, and no self-hosted AuthKit backend is publicly documented. Public user API responses omit password hashes, with no documented export endpoint. Logto publishes its core authentication platform, backend, and sign-in UI under an open-source license. Logto Cloud uses the same core with added managed services. |
How is Logto different from WorkOS?
One model for personal accounts and organizations
Logto supports passwords, passkeys, social sign-in, and MFA for personal accounts. The same tenant can also include organizations, organization roles, per-organization enterprise SSO, and just-in-time provisioning. Account-level API roles and organization roles can coexist in one authorization model.
Enterprise pricing you can model before the deal
Pro starts at $24 per month and has no fixed MAU limit, subject to fair-use policies. It includes 50K access tokens per month and one custom domain. Enterprise SSO costs $48 per connector per month. MFA and Organizations are separate $48-per-tenant monthly add-ons. Token overages and other add-ons still affect the bill.
Managed and self-hosted options from the same core
The managed service uses the same open-source authentication core available for self-hosting. Choose Europe, West US, Australia, or Japan as the tenant data region. Private Cloud provides a dedicated Azure deployment, with target-region availability confirmed case by case. Self-hosting keeps the service on your infrastructure.
Is Logto the right WorkOS alternative for you?
We believe in honest positioning. Logto isn't the perfect fit for every WorkOS customer.
When you should switch to Logto
- The cost of each enterprise SSO connector matters. Ten Logto Enterprise SSO connectors add $480 per month. With the $24 Pro base price, a tenant starts at $504 before token overages or other add-ons. Ten WorkOS Enterprise SSO connections cost $1,250 at the published 1–15 rate.
- Backend self-hosting is a requirement. Logto publishes its core platform source and supports self-hosting. WorkOS on-prem guidance still requires customer applications to communicate with WorkOS APIs.
- A managed data region outside the United States is required. Logto Cloud offers tenant data regions in Europe, West US, Australia, and Japan. Private Cloud and self-hosting provide more control over deployment location.
- You want a hosted custom domain without a separate fee. Logto includes one custom domain on Free and Pro. A production Custom Domain add-on for hosted AuthKit costs $99 per month.
When WorkOS might be a better fit
- You already have authentication and only need enterprise connectors. WorkOS standalone Enterprise SSO and Directory Sync APIs connect to an existing authentication system without replacing it.
- Your app fits within the AuthKit free allowance. AuthKit includes core authentication for up to 1M monthly active users. Organizations, roles, MFA, and passkeys are included. It can cost less when the default authkit.app domain meets your needs and production enterprise connections are not required.
- Directory Sync and customer-led setup are central to your product. WorkOS pairs Directory Sync with an Admin Portal that lets customer IT teams configure enterprise connections.
WorkOS vs. Logto: Head-to-head comparison
| Logto | WorkOS | |
|---|---|---|
| Key differences | ||
| Authentication scope | B2C and B2B authentication in one tenant | AuthKit platform plus standalone enterprise APIs |
| Free tier | Up to 50K MAU and 50K access tokens per month, one custom domain | Up to 1M MAUs, organizations, roles, MFA, and passkeys included |
| Custom domain | One included on Free and Pro | Hosted AuthKit add-on: $99 per month |
| Enterprise SSO pricing | $48 per connector per month on Pro | Starts at $125 per production connection per month for 1–15 |
| Pricing model | Pro starts at $24 per month, no fixed MAU limit, access-token usage and add-ons apply | Up to 1M MAUs free, $2,500 per additional 1M, enterprise products priced separately |
| B2B multi-tenancy | Organizations with roles, per-organization SSO, and JIT provisioning | Organizations, roles, and JIT included, SSO and Directory Sync priced per production connection |
| Sign-in UI control | Editable translations, 15 built-in languages plus 113 additional language tags, Bring Your UI | Hosted UI in about 90 locales with custom copy and CSS, custom frontends through APIs |
| Open source | Core auth platform, backend, and sign-in UI, Cloud adds managed services | Frontend examples, SDKs, and OpenAPI are public, hosted backend is proprietary |
| Backend self-hosting | Supported with the open-source platform | No publicly documented self-hosted AuthKit or User Management backend |
| Deployment and data residency | Cloud tenant data regions in EU, US, AU, and JP, Private Cloud, self-hosted | Public materials describe US-based hosting, on-prem customer apps still call WorkOS APIs |
Based on publicly available information as of July 2026. Please verify with the respective vendor for the latest details.
Migrating from WorkOS
WorkOS documents how to import password hashes into AuthKit. Public Get User and List Users responses omit hashes, and no password-hash export endpoint is publicly documented. Confirm available export options with WorkOS before finalizing the migration plan.
WorkOS exposes paginated APIs for users and organizations. Map compatible records into Logto with scripts that call the Management API. User creation is one record at a time and rate-limited. Plan separate work for memberships and roles, linked identities and MFA factors, plus SSO and Directory Sync settings.
If hashes are unavailable, password users need a reset or a staged migration. Social and passwordless accounts avoid password-hash migration, but users may still need to sign in again or relink an identity. Test account matching and session cutover before launch. Contact us if you want help reviewing the plan.
Read the user migration guide →
Every migration is a little different. If the guide doesn't cover your case, talk to us and tell us what you need.
Frequently asked questions
What is the difference between WorkOS and AuthKit?
AuthKit is WorkOS's authentication product. It covers hosted and custom sign-in, user management, and sessions. It also includes organizations, roles, MFA, and OAuth or OIDC flows. WorkOS offers standalone Enterprise SSO, Directory Sync, and Audit Logs APIs for products that keep an existing authentication system. Some enterprise features are priced per production connection.
Is WorkOS AuthKit really free?
AuthKit is free for up to 1M MAUs per calendar month. It includes email and password, social OAuth, and Magic Auth. MFA and passkeys are included too. A production Custom Domain add-on for hosted AuthKit costs $99 per month. Enterprise SSO starts at $125 per production connection per month for 1–15 connections. Directory Sync is billed separately at the same published tiers. SIEM streaming costs $125 per SIEM connection per month. For usage above 1M MAUs, WorkOS lists $2,500 per month for each additional 1M MAUs.
Is WorkOS open source?
WorkOS publishes AuthKit frontend examples, SDKs, and an OpenAPI specification. Its hosted User Management and authentication backend is proprietary. No self-hosted AuthKit backend is publicly documented. Public user API responses omit password hashes, with no documented export endpoint. Logto publishes its core authentication platform, backend, and sign-in UI under an open-source license. Logto Cloud uses the same core with added managed services.
What is the best WorkOS alternative?
Logto fits teams that want B2C and B2B authentication with an open-source backend, regional cloud choices, self-hosting, and lower per-connector SSO pricing. WorkOS fits teams that want to add Enterprise SSO and Directory Sync to an existing authentication system or prefer WorkOS's managed enterprise integration suite. Auth0 and Stytch are other common options.
Can WorkOS AuthKit be self-hosted?
WorkOS documents support for customer applications deployed on-premises, but those applications still communicate with WorkOS APIs. Air-gapped applications need a separate authentication path. WorkOS does not publicly document a self-hosted AuthKit or User Management backend. Logto supports self-hosting for its open-source authentication platform.
WorkOS and AuthKit are trademarks of WorkOS, Inc. Feature comparisons are based on publicly available information as of July 2026. Please verify with the respective vendor for the latest details.