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Dev tools · alternatives · 2026

24 alternatives to API Automation Testing Platform

All-in-One API automation testing platform

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1

    Free online tool to test APIs and autogenerate documentation

    2018 · its alternatives →

  2. 2

    AI-powered API test automation. Save 90% of testing time

    2025 · irual.me · its alternatives →

  3. 3NW
  4. 4

    Develop APIs fast + automatically detect endpoints

    2025 · fastrequest.apidog.com · its alternatives →

  5. 5WB

    Hi, this is Mish and Sebastian. We are working on Step CI - a fully automated API testing platform for developers. Step CI works programming-language independent and for different API paradigms (REST, GraphQL, XML). Our CLI and test runner are available on GitHub (https://github.com/stepci) under the MPLv2 license. Since our last launch, Step CI is now able to generate automated tests for your API based on your OpenAPI (Swagger) spec. This saves you a lot of time as you never have to write and maintain your tests again! We would like to invite you to try our tool and give us…

    2022 · stepci.com · its alternatives →

  6. 6

    Automate cross browser testing with an online selenium grid

    2019 · its alternatives →

  7. 7
    Sparrow▲331

    The Open Source API Testing Tool For All Developers

    2024 · its alternatives →

  8. 8
    ApiHome▲73

    Home of API testing

    2022 · its alternatives →

  9. 9

    Your playground for writing custom API security tests

    2023 · its alternatives →

  10. 10AF
  11. 11

    The easiest way to test APIs

    2017 · its alternatives →

  12. 12
    Karate▲89

    Web-services testing made simple 🥋

    2018 · its alternatives →

  13. 13

    Open-source platform unifying API & UI test automation

    2023 · its alternatives →

  14. 14AG

    Hey HN! We've developed OpenAPI AutoSpec, a tool for automatically generating OpenAPI specifications from localhost network traffic. It’s designed to simplify the creation of API documentation by just using your website or service, especially useful when you're pressed for time. Documenting endpoints one by one sucks. This project originated from us needing it at our past jobs when building 3rd-party integrations. It acts as a local server proxy that listens to your application’s HTTP traffic and automatically translates this into OpenAPI 3.0 specs, documenting endpoints, requests, and…

    2024 · github.com · its alternatives →

  15. 15
    noSwag▲3

    AI Powered API Testing, that scripts write itself

    Feb 2026 · noswag.io · its alternatives →

  16. 16

    Test public APIs with one click

    2016 · its alternatives →

  17. 17
    Routebase▲106

    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.

    Jul 2026 · routebase.dev · its alternatives →

  18. 18
    AutoMi▲88

    Accelerating testing automation for mobile, web & APIs

    2017 · its alternatives →

  19. 19

    Autonomous API testing platform for SQL server and Postgres

    2022 · its alternatives →

  20. 20
    noSwag▲7

    Automating the Test Automation

    2023 · its alternatives →

  21. 21OS
  22. 22AA
  23. 23GO
  24. 24EH

    https://github.com/lazywithclass/swaggins It works by looking at the request and extracting the relevant information to populate the Swagger JSON file. I've wrote it to go with contract testing (http://martinfowler.com/articles/microservice-testing/#testing-contract-introduction), but it can also work with normal HTTP based integration tests. Any suggestion / opinion is welcome.

    2016 · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →