Alternatives

Products that do what dummyÔauth does

Mock IdP for development and test

1. 1RY
   Run your own OAuth2/OpenID Connect provider▲161

   2016 · github.com

2. 2RY
   Run your own OAuth2 and OpenID Connect Provider▲88

   2016 · github.com

3. 3OA
   Obligator – An OpenID Connect server for self-hosters▲273

   2023 · github.com

4. 4OS
   Open-source OAuth2 & OpenID server Ory Hydra v2▲108

   2022 · github.com

5. 5HM
   HTTP Mock – Intercept, debug and mock HTTP(S) with zero setup▲341

   2019 · httptoolkit.tech

6. 6
   Stack Auth (YC S24)▲424

   Open-source Auth0/Clerk alternative

   2024

7. 7MF
   Mock FedCM Integrations▲11

   MockFedCM is a free FedCM Relying Party (RP) and Identity Provider (IdP) for testing FedCM integrations. Simulate real-world authentication flows, debug your implementation, and validate user experiences—all without needing a production IdP or RP.

   2025 · mockfedcm.com

8. 8
   Decoy▲99

   Local server mocks in macOS, all in a lightweight native app

   Mar 2026

9. 9OS
   Open-source A/B testing framework▲199

   2021 · github.com

10. 10
    MockAPI Dog▲122

    Instant mock REST & LLM APIs - free, no signup required

    Feb 2026

11. 11
    Secure MCP Framework by Arcade.dev▲272

    Skip migration and launch MCP with built-in Auth

    Nov 2025

12. 12MO
    Mockit – Open-source app to create and configure HTTP mocked endpoints▲158

    2019 · mockit.netlify.com

13. 13
    create-api.dev by Kong▲150

    Generate and share OpenAPI specs with AI

    2025

14. 14
    Openstatus MCP Health Checker ▲207

    Test MCP servers like a real AI client, not just a ping

    May 2026 · openstatus.dev

15. 15NW
    New way to test APIs with OpenAPI and Postman▲80

    2021 · github.com

16. 16
    ApiHome▲73

    Home of API testing

    2022

17. 17
    Permit MCP Gateway▲134

    Drop-in MCP Security Developers Love and CISOs Trust

    Mar 2026 · permit.io

18. 18AF
    A fake SMTP server for software integration testing▲127

    This is a side project of mine. Use this as your SMTP server in a test environment to guarantee that your users don't receive test emails. Looking for feedback, especially on the security side.

    2024 · fakemail.stream

19. 19
    AGG Identify▲71

    A lightweight, secure streamlined OIDC and OAuth2 provider

    May 2026 · agglabs.com

20. 20
    deepidv▲96

    AI-native verification & anti-fraud Engine

    Mar 2026

21. 21OM
    OpenAPI mocks that don't suck – realistic test data, quick setup▲13

    Hi HN! I'm Ankit, the founder of Beeceptor, a request mocking and intercepting tool. This time, I built something new to address a pain I’ve personally felt (and heard from dozens of QA, frontend, and platform teams): making OpenAPI specs actually useful during development. API contracts just sit around as docs often. What if you could 'activate' them, instantly have a realistic, hosted mock server-with contract validation, smart test data, and early usage? So I made _Mockaroo for OpenAPI_, but with brains. It spins up a hosted mock server from your spec in one click. It: - Generates…

    2025 · beeceptor.com

22. 22WA
    Web App for generating mocked data from an OpenAPI specification▲19

    2020 · github.com

23. 23GO
    Generate OpenAPI from Your Tests▲16

    2023 · github.com

24. 24
    Routebase – One OpenAPI spec drives your docs, mocks, tests, monitors▲8

    Design, mock, test, and document APIs from one living spec. Full test runner built in: suites, scenarios, ten auth schemes, CLI in CI. No OpenAPI needed.

    11d ago · routebase.dev

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