Alternatives

Products that do what FoAz – Use Frontend User Authentication for Backend API Authorization does

1. 1OS
   Open-Source Auth for NextJS / React▲107

   2021 · ory.dev

2. 2HO
   Hydra – Open-Source OAuth2 Server▲190

   2019 · gethydra.sh

3. 3FO
   Fosite – OAuth2 framework for Go▲38

   2016 · github.com

4. 4BA
   Base – API for authentication, email sending, images and more▲140

   2019 · base-api.io

5. 5
   Clerk▲280

   Authentication and user management for React and Next.js

   2021

6. 6
   PropelAuth▲112

   Flexible auth for B2B products

   2023

7. 7
   Authentiq▲157

   Strong authentication, without the passwords

   2017

8. 8KA
   Keratin AuthN – Accounts and Auth Microservice in Go▲104

   2017 · keratin.tech

9. 9OM
   OAuth microservice for FB, Twitter, etc.▲127

   2017 · login-with.com

10. 10AM
    A microservice that makes adding authentication to your app easy▲89

    2017 · github.com

11. 11OO
    oso – Open-Source Policy Engine for Authorization▲44

    2020 · osohq.com

12. 12IM
    I made an open-source marketplace to fasten OAuth API integrations▲20

    2020 · github.com

13. 13SB
    Staart – Backend and auth starter for SaaS startups▲17

    2019 · github.com

14. 14LA
    LoginBox – Authentication, payments and memberships from a single box▲53

    2015 · loginbox.io

15. 15AO
    An open source OAuth/auth system▲9

    Can be deployed to Cloudflare or fully selfhosting. A simple demo site available with only Password Sign-in/Sign-up, OTP MFA, Passkey enrollment features enabled, no real email needed: https://auth-demo.valuemelody.com/

    2025 · github.com

16. 16RN
    React Native Auth Boilerplate▲41

    2018 · github.com

17. 17OS
    Open Source Auth w/ Passkeys▲5

    2024 · github.com

18. 18AF
    APIs for Passwordless Authentication▲7

    2021 · stytch.com

19. 19U1
    Using 16 Web3.0 Auth Projects with Decentralized, MongoDB-Like Database▲10

    2020 · github.com

20. 20DI
    Drov.io – plug-and-play user authentication and management platform▲15

    2015 · drov.io

21. 21EA
    Easily add auth checks to any react component▲27

    2018 · github.com

22. 22IU
    Integrate user auth more quickly▲6

    2022 · github.com

23. 23BA
    Bare Auth – a ready-to-deploy stateless authentication server▲7

    2015 · github.com

24. 24AO
    AuthPlane – OAuth 2.1 and PKCE authorization server for MCP▲7

    Jun 2026 · github.com

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