Any programming language with support for XML and HTTP or HTTPS can access the API.
This encapsulates every major, modern language including:
- Visual Studio .NET (VB, C#, etc.)
- PHP 4+
- ASP / ASP.NET
- Objective C
- Many more...
If you're unsure of your languages compatibility please consult the documentation or the vendor. Alternatively you can contact our support team - we'd be more than happy to help you out!