title: Mailchimp in a single page app - API key made public?
body: <p>My single page app has no backend per se (firebase) and now needs to interface with Mailchimp to allow visitors to register to the newsletter.</p>
  
  <p>So far, I have this API key - it seems to give full access to my mailchimp account.
  Can one simply call the Mailchimp api from an SPA to register, without providing an api key?</p>