APIs paths can only be defined as absolute as an external http link
The URL must point to the "final" URL before the articles themselves. For example, for the English wikipedia, it would be "http://en.wikipedia.org/wiki"
It is not necessary to define an API link for wikipedia, the wikipedia element in article allows to refer directly to Wikipedia articles without having to define the path of Wikipedia itself in the APis configuration file
APIs property
The "APIs" property specifes an XML file defining a list of Mediawiki links. See APIs.xsd for the APIs Schema. Thei file allows to specify a list of Mediawiki links, and for each Mediawiki:
The validity and existence of mediawiki tags will only be checked if the "checkLinks" property is set to true.
See also
APIs property: Configure how to access external APIs and wikis
Configuration file: It is possible to define an optional property / value configuration file when starting the application (using the graphical UI or the command line)