Adding Google ReCAPTCHA to CEP plugin

Hi Folks,

I am trying to add Google reCAPTCHA v2 to my CEP Photoshop plugin. The issue I am facing is since the plugin is served from a file and there is no domain associated with it. For registering any application for recaptcha, it allows only three types as of now - website, android and IOS. 

Has anybody had success implementing google recaptcha in their plugin? How did you register to get the site key?