CAVAL is an initiative for developing open standards for data interoperability in the travel and tourism industry. The CAVAL specifications consist of a set of XML schemas and WSDL endpoints along with guidelines for deploying RESTful services.
Services that CAVAL has already developed using its specifications include the commons booking, hotel booking, transfer booking, destination activity booking, and channel manager services. These services are all accessible using SOAP calls issued in XML format.
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So far, we don't have a record of any changes to this API