How to Create an API APP Alex McFerron September 10, 2019 05:57 Updated Follow 1. Login to HelloSign.com 2. Navigate to this location: https://app.hellosign.com/home/myAccount#api 3. Click CREATE to create an API App 4. Fill out the info to setup the API APP Related articles Tools for testing the API and callbacks locally Can you give me an example of a callback event? Where to find your API Key How do I Trigger Callback Examples for Errors and Declined? How to enable/disable automatically inserting signatures Comments 0 comments Article is closed for comments.