Along with the e2e testing, now a days it’s important to perform API automation testing and also integration testing, and there are several tools and libraries available for API testing.
API testing tools / libraries –
- Java – restAssured
- C# – restSharpe
- Katalon studio
- Python – requests with pytest
Postman is a tool to perform all kind of API testing by providing the payload, authentication and different API calls / methods, to practice API testing in postman also we need demo APIs.
We will see few available opensource/free/community edition based demo sites to practice API testing.
List of API demo portals –
This above is book cart API with swagger documentation.
Demo sites for e2e automation testing
These below sites will give you online playground to run the API calls with parameters, header, body etc. –
If you want to have a local API server for faster executions, you can refer to