# Testing your API

Run your service and create scenarios to test your API.

Talend Cloud API Tester allows you to create test projects in order to send requests and create test scenarios.

In this example, you will create a scenario and use assertions to validate your data.

### In this section

* [Opening the service in Talend Cloud API Tester](https://help.qlik.com/talend/en-US/api-services-getting-started-guide-api-services-platform/Cloud/opening-service-in-api-tester)
* [Creating environments](https://help.qlik.com/talend/en-US/api-services-getting-started-guide-api-services-platform/Cloud/creating-environments)
* [Creating a test scenario](https://help.qlik.com/talend/en-US/api-services-getting-started-guide-api-services-platform/Cloud/creating-test-scenario)