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Top 10 TypeScript api-testing Projects
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If you're searching for a Postman alternative that is faster, lightweight, and more cost-effective, look no further than Hoppscotch.
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cypress-realworld-app
A payment application to demonstrate real-world usage of Cypress testing methods, patterns, and workflows.
Project mention: Docker + Cypress in 2025: How I’ve Perfected My E2E Testing Setup | dev.to | 2025-03-20Cypress Documentation: For test strategies, debugging tips, and the latest parallelization tricks.
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prism
Turn any OpenAPI2/3 and Postman Collection file into an API server with mocking, transformations and validations. (by stoplightio)
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CI/CD testing: As mentioned earlier, if you have fast preview deployments of your API hooked up to your PRs, you can use a tool like StepCI to run integration and end-to-end tests as a part of your development workflow.
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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jest-api-test-typescript-example
An example repository which provides the necessary boilerplate for a reusable and maintainable jest test framework
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
TypeScript api-testing discussion
TypeScript api-testing related posts
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Docker + Cypress in 2025: How I’ve Perfected My E2E Testing Setup
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Show HN: Simplifying Back end Testing with qapir.io
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Step CI – open-source API test automation framework
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Observable API Testing with YAML using Echoed
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Echoed: Observable Integration Testing with OpenTelemetry
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The most effective Schema-Driven Development using OpenAPI for Logistic Engineer
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Show HN: Open-source Postman alternative with type safety
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A note from our sponsor - CodeRabbit
coderabbit.ai | 26 Mar 2025
Index
What are some of the best open-source api-testing projects in TypeScript? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | Hoppscotch | 70,326 |
| 2 | cypress-realworld-app | 5,660 |
| 3 | prism | 4,481 |
| 4 | stepci | 1,725 |
| 5 | ezy | 1,012 |
| 6 | portman | 642 |
| 7 | prestige | 389 |
| 8 | apitest | 113 |
| 9 | echoed | 29 |
| 10 | jest-api-test-typescript-example | 7 |
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