VÃ¤sttrafik is the second-largest public transportation company in Sweden. Customers have the option of purchasing tickets online in the form of SMS for their iPhones or Android devices. The VÃ¤sttrafik API enables users to look up the SMS code and price of the ticket they want. This service uses SOAP calls issued in XML format. The VÃ¤sttrafik website is provided primarily in Swedish with English translations available for some sections.