title: PayPal API for "non-merchant"/private account
body: <p>on developer.paypal.com I found out how-to register an app, get clientId and secret for this app and use the API (in my case the java api: <a href="https://github.com/paypal/PayPal-Java-SDK/" rel="nofollow">https://github.com/paypal/PayPal-Java-SDK/</a>)</p>
  
  <p>This works fine.</p>
  
  <p>BUT: I actually want to get PaymentHistory and PaymentDetails for my personal, private, non-merchant account. It is a normal enduser account which I do not want to upgrade to merchant-mode. </p>
  
  <p>I am wondering how to use the API in such a scenario?
  I did not found any hint to get an accessToken without registering an app.</p>
  
  <p>Any suggestions?</p>