Alternatives

Products that do what Oneloop – It's Like Auth0/Clerk, for your API does

1. 1
   Stack Auth (YC S24)▲424

   Open-source Auth0/Clerk alternative

   2024

2. 2
   OneID▲169

   A free 1Password competitor trying to kill the password

   2015

3. 3OA
   One Adaptive API for Dropbox, Google Drive, OneDrive▲71

   2014 · cloud-rail.com

4. 41C
   1Poshword, cross-platform PowerShell client for 1Password▲66

   2016 · github.com

5. 5AS
   Amazon S3, Microsoft Azure, Rackspace, Backblaze via a Single API▲191

   2016 · cloudrail.com

6. 6BA
   Base – API for authentication, email sending, images and more▲140

   2019 · base-api.io

7. 7PA
   Paid, an API for invoicing▲88

   2015 · paidapi.com

8. 8MA
   Me API – turn yourself into an open API▲91

   2015 · github.com

9. 9AM
   A microservice that makes adding authentication to your app easy▲89

   2017 · github.com

10. 10SI
    Someone.io – Task management for teams made easy▲151

    2015 · someone.io

11. 11OS
    Open-source Auth0 alternative Ory Kratos v0.13 released – nearing v1.0▲88

    2023 · github.com

12. 12NC
    nvlope.com, your mailbox with an API▲65

    2013 · nvlope.com

13. 13
    Amber.io▲61

    An API for placing orders with online retailers

    2014

14. 14IM
    I made an open-source marketplace to fasten OAuth API integrations▲20

    2020 · github.com

15. 15TE
    The easiest 2-factor auth▲27

    2014 · developer.mepin.com

16. 16AM
    API Marketplace for Developers by Developers▲54

    2016 · askmacgyver.com

17. 17LA
    LoginBox – Authentication, payments and memberships from a single box▲53

    2015 · loginbox.io

18. 18AO
    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

19. 19OA
    One API Key – Third-Party API Integrations with Zero Setup▲13

    Hey HN, we’ve been working on a way to simplify authentication with third-party APIs. This started because my co-founder andreterron (https://news.ycombinator.com/user?id=andreterron) and I both built personal dashboards to track different health and productivity metrics, but it’s such an annoying chore to integrate with new APIs. First you read their docs to learn their authentication method, then build and deploy a custom server to receive OAuth callback requests or deal with CORS, register an app with them, then finally you can send the first request to their API. After the…

    2023 · oneapikey.com

20. 20AS
    A Single API to Everything (cloud Services and IoT)▲9

    2015 · cloud-rail.de

21. 21LC
    Low-code platform to build user flows with your current API or IdP▲9

    2021 · arengu.com

22. 22OA
    OneDB, an open source decentralized back end▲10

    2018 · one-db.org

23. 23MA
    Micro – A public API platform (now free during beta)▲25

    2021 · m3o.com

24. 24AA
    Apijack – API of All Trades▲14

    2019 · apijack.com

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