Tools, such as Postman, can be helpful to complete the development and testing of your application, but it is up to you to decide which tools to use.

Test Credentials

During testing and development of your application, you work with an Integration Specialist or Relationship Manager. They answer questions, provide support, and ensure your application supplies the information needed by the Nuvei underwriting team.

To get started immediately in the AppLink Sandbox, use the shared test API key test: Testing123$

If you require a dedicated test environment, contact your Integration Specialist or Relationship Manager. They provide you with a unique API key that enabled you to use the AppLink Web API functions in your pre-production testing. The API key may also be used to sign on to the test environment to work with your own payload as explained in the Quick Start Guide.

Payload Layout

Understanding the layout and use of the JSON payload is critical to successfully submitting Merchant Applications using the AppLink Web API.

As payload layouts are unique to each developer, all sections and data fields are described in Appendix 1 – Payload Data Specifications.

To get started immediately in the AppLink Sandbox, use the test payload layout provided in Appendix 2 – Sample Payloads.