Best API Testing Tools in 2026 · page 2
- 26
Apiary
Apiary is a hosted web platform for designing, prototyping, documenting, and testing APIs.
Free planWebAPI6.1Free plan - 27
SuperTest
Free plan6.1Free plan - 28
Citrus
Citrus is a free test framework for automated integration testing of messaging applications and microservices.
Free planLinux5.9Free plan - 29
HttpMaster
Free planWindows5.9Free plan - 30
REST Assured
Free planAPI5.9Free plan - 31
Step CI
Step CI is a self-hosted, open-source framework for API security, performance, and load testing.
Free planSelf-hosted5.9Free plan - 32
RestTestGen
Free planLinuxSelf-hosted5.8Free plan - 33
Frisby.js
API5.2 - 34
RESTler
LinuxmacOSWindows4.9