Visa Developer Program (VDP) allows a large portion of Finix's capabilities available as APIs. VDP offers various types of APIs, documentation, tools, and support that can help companies start building easier, faster, and more secure ways to power commerce. Finix completes all sandbox, certification and production testing within VDP for any Visa Direct implementations.
You can access to VDP via: https://developer.visa.com/portal/identity/login
Contact your Finix Technical Implementation Lead if you have any project questions.