Board Thread:Support Requests - Getting Technical/@comment-26097663-20181011021539/@comment-27958705-20181013003114

u need a script, that will do: i do understand it is probably not exactly what did u mind to ask. but ur question is too vague.
 * 1) enumerate and read json files from ur source
 * 2) convert json file to text (if needed (it will be needed))
 * 3) post the text to server as new page

(psychic powers on): i'd suggest to use special:export and special:import, or autowikibrowser.