In order to use modulus® APIs, you need to create an application and select APIs to which the application is authorized.
Contact modulus® team to get your application created. Submit a ticket via https://modulus.biz/support or send an email to support@modulus.biz.
Once your app is created, you will be able to integrate with modulus® APIs. Every app has a name, secret key and list of authorized APIs. You need the app name and secret key to authenticate before calling target APIs.