Adding Zai
To accept payments through Zai, you will need to add them as a provider.
Getting an account
If you need to sign up for a Zai account, you need to contact with sale here.
Adding Zai to payFURL
You can use following instructions to get Zai Information.

Zai Login Url
You'll need your Client Id, Secret and Scope.
You can use this to add Zai as a provider in payFURL. Go to Providers, New Provider and select Provider Type Zai:
