You can’t embed HTML in a Corvid page. You might want to consider using an HtmlComponent . For more information, see the article Working with the HTML Component in Corvid .
A more secure way to handle web service requests is by using backend (server-side) code. Using backend code you can secure your passwords, API keys, and other secret information. The article Accessing 3rd Party Services explains how this is done. I recommend checking with the service provider to see if they provide a REST interface.