I've successfully installed MediaWiki on my laptop. Here is the entry tease out.
As you can see, the link to this entry on my local host is http://192.168.56.1/wiki/index.php/tease_out. Then I want to use REST API to convert this page to html. The corresponding link on the online Wiktionary is https://en.wiktionary.org/w/rest.php/v1/page/tease_out/html. The desired result is
Then I try http://192.168.56.1/w/rest.php/v1/page/tease_out/html. But it shows
Could you please elaborate on this issue and how to solve it? Please let me know if you need further information.
You make URLs wrong way. /w/ in mediawiki examples usually means mediawiki prefix, in your case it is /wiki/
http://192.168.56.1/wiki/rest.php/v1/page/tease_out/html
In URLs that you write in comments you've lost /v1/ in the path.