Cost / License
- Free
- Open Source
Application types
Platforms
- Mac
- Windows
- Linux
- Google Chrome
- Firefox



Kusho is described as 'Never test your APIs manually again' and is an app in the development category. There are more than 50 alternatives to Kusho for a variety of platforms, including Mac, Windows, Linux, Web-based and Flathub apps. The best Kusho alternative is Postman, which is free. Other great apps like Kusho are Insomnia REST Client, Fiddler, Yaak and Hoppscotch.



Design and debug APIs in a powerful visual editor. Describe and debug easily with JSON Schema support. Apidog is a complete set of tools that connects the entire API lifecycle, helping R&D teams implement best practices for API Design-first development.




HTTP client plugin for Sublime Text with an expansive feature set, modern UX, elegant syntax and first class support for testing.




Lama2 defines the human-friendly l2 syntax and CLI for describing and executing APIs. Store your APIs in plain-text files. Collaborate with team using version control (say, git). Run Lama2 directly from VSCode extension. Think of Lama2 as Markdown for APIs.


API Test Base is a free tool for integration testing a variety of APIs. It is suitable for Integration, ESB and Microservices testing.






Assertible is the easiest way to test and monitor your APIs and helps reduce bugs in web apps by providing tools to continuously validate endpoints and responses with a flexible interface to run your tests any time and place.




RestCase is a security-focused API development platform that enables its users to rapidly create secure microservices, mock them in order to start testing, monitor APIs and collaborate on their development and testing.


Bearer is a developer tool that helps engineering teams monitor API requests, track performance, detect anomalies, and fix issues for their critical API usage. The solution monitors all outgoing API requests without proxying traffic.




RequesterX is a free desktop HTTP client for API testing and development. Organize requests into nested collections, use environment variables for easy context switching, generate code snippets in 13 languages, and keep everything stored locally — no account required.

Powerful IDE to work with API. Harness the power of scenarios, autocompletion and syntax highlight for API development. Write tests, share code without leaving the comfortable development environment.



