How many alternatives to Clerk are there?

There are 15 alternatives to Clerk listed on patchBay, all in the Authentication & Authorization category.

Are there free alternatives to Clerk with no authentication?

All alternatives to Clerk on patchBay currently require some form of authentication.

What are the best Clerk alternatives? (2026)

Q: What is the best alternative to Clerk?

The best alternative to Clerk is AEM Content Fragment APIs. These control-plane APIs are used to fully manage the Content Fragments and their associated Models. Other alternatives include Auth0, Authorized Partner API Specification, Corbado.

The top alternative to Clerk is AEM Content Fragment APIs, followed by Auth0 and Authorized Partner API Specification. We compared 15 Authentication & Authorization APIs you can use instead of Clerk.

Looking for alternatives to

Clerk

Drop-in React components for authentication and authorization

apiKeyHTTPSCORS

Best Authentication & Authorization APIs Compare all Authentication & Authorization APIs

What Authentication & Authorization APIs can replace Clerk?

15 APIs

AEM Content Fragment APIs

These control-plane APIs are used to fully manage the Content Fragments and their associated Models.

apiKeyHTTPS

Auth0

Easy to implement, adaptable authentication and authorization platform

apiKeyHTTPSCORS

Authorized Partner API Specification

To access files in user’s DigiLocker account from your application, you must first obtain user’s authorization.

apiKeyHTTPS

Corbado

Passkey-first authentication

apiKeyHTTPSCORS

Ex Libris APIs

For more information on how to use these APIs, including how to create an API key required for authentication, see [Alma REST APIs](https://developers.exlibrisgroup.com/alma/apis).

apiKeyHTTPS

GetOTP

Implement OTP flow quickly

apiKeyHTTPS

Kinde

Authentication for modern applications. Integrates in minutes and free up to 7,500 MAU

OAuthHTTPS

Labs64 NetLicensing RESTful API Test Center

The Labs64 <a href='https://netlicensing.io/wiki/restful-api' target='_blank'>NetLicensing RESTful API</a> gives you access to NetLicensing’s core features.<br/><br/><strong>Authentication</strong>...

apiKeyHTTPS

Micro User Service

User management and authentication

apiKeyHTTPS

MojoAuth

Secure and modern passwordless authentication platform

apiKeyHTTPSCORS

OpenAPI Petstore

This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.

OAuth

SAWO Labs

Simplify login and improve user experience by integrating passwordless authentication in your app

apiKeyHTTPSCORS

Stytch

User infrastructure for modern applications

apiKeyHTTPS

Swagger Petstore

This is a sample server Petstore server. You can find out more about Swagger at [http://swagger.io](http://swagger.io) or on [irc.freenode.net, #swagger](http://swagger.io/irc/). For this...

OAuthHTTPS

Warrant

APIs for authorization and access control

apiKeyHTTPSCORS

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Featured APIs appear first in alternatives pages, category rankings, and the homepage. Launch partner rate: $29/mo.

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