body: As the title says, am I allowed to use other web applications from my own one (to generate data or to convert files), even though they don't provide an API (which I had to build myself), as long as their terms don't explicitly forbid such behavior?
  
  
  I know it is a short description, but the question really is that simple.
  I could not find the answer elsewhere.
  
  
  Thank you in advance.
  
  
  
title: Using web apps from my web app