Do I need a module for integration with Prestashop, Drupal, Wordpress?
No, you don't need an extra module for this.
All you need to do is to add some HTML to your website's source code. There are different ways to do this, depending on the CMS (content management system) you are using. If you don't know how to this, please ask for help from the company behind your CMS directly (or from the CMS's community).