PassKit's Pass Designer and API takes care of all the heavy lifting for you - i.e. we securely store your private certificate and sign each Pass correctly at the time of issue. But before we can do this you need to get a Pass Certificate from Apple. Currently, the only way Apple will allow you to acquire this certificate is by enrolling on the Apple Developer Program. You may not be a developer - but don't worry - click here to find out how to enrol to the Apple Developer Program.
Once you have enrolled into the Apple Developer Program, learn how to upload your certificates here.