The Payment Processing API conforms to the design principles of Representational State Transfer (REST). Wirecard Payment Gateway provides access to resources (data entities) via URL paths. To use a REST API, your application will make an HTTP request and parse the response. By default, the response format is XML. If you wish, you can request JSON instead of XML. Your methods will be the standard HTTP methods such as GET, PUT, POST and DELETE.

The API currently supports the following data formats:

  • for requests XML, JSON and NVP (for credit card only).

  • for responses XML, HTML or JSON. Some methods accept a subset of these formats, only.

Change the format extension to a request or set the HTTP accept header to get results in the format of your choice. Methods to retrieve data from the Payment Processing API require a GET request. Methods that submit data require a POST.

API methods that require a particular HTTP method will return an error if the request is not made using the correct method. The following HTTP Return Codes are helpful in analyzing the error.

Some API methods use optional or requisite parameters. Two things to keep in mind when making requests with parameters:

  • Parameter values should be UTF-8

  • All URLs for REST should be URL encoded.

Because the Payment Processing API is based on open standards, any web development language may be used to access the API.

Custom URL: