title: PayPal API, finding the right one
body: <p>I need to add the option to pay with PayPal in my web site.
  I would like to have a API where i can send PayPal the information and get back right away the transaction ID so i can save it in my DB.
  What API will be best for me? Is  there a way to do this? I saw they have this list:</p>
  
  <p><a href="https://developer.paypal.com/webapps/developer/docs/classic/use-cases/" rel="nofollow noreferrer">list</a></p>
  
  <p>Also do you know were i can find good examples for this? my app is ASP.NET c#
  I know this a very beginner question, what i really need help with this.</p>
  
  <p>Thank you  </p>
  
  <p><strong>EDIT</strong>
  I started working with something but then found a problem I posted a new question here
  <a href="https://stackoverflow.com/questions/16829960/setexpresscheckout-returns-null-token-in-asp-net-only-on-some-computers">question</a></p>