Did you heard about Katalon Studio? If not, I can share somthing about this cool tool which I very love.
Katalon Studio listed as a Top Automation Tool by Microsoft https://www.katalon.com/resources-center/blog/top-automation-tool-list-microsoft/.
Katalon Studio is an automation solution for API, Web, and mobile testing. The application integrates all necessary components with built-in keywords and project templates into a complete automation framework. The tool was developed to support various testing technologies (Data-Driven Testing, TDD/BDD, Page Object Model, etc.) and integrate with the modern ALM systems (JIRA, qTest, Slack, CI, Katalon Analytics, etc.).
Expecially, it is a free tool. And the Katalon support team is very helpfull too. So many companies have started working on it. I used it to get started with API testing too.
Hope this helps.