This template displays a table of links to other language versions of Wikivoyage, allowing re-use of the same data on multiple pages. This template is used on the Main Page (among other locations), so please edit with caution.
This website uses the Wikivoyage API to get and display all the information you see. This is the MediaWiki API, which is a general API for accessing data from Wikimedia projects. You can find information about it here: MediaWiki API.