This works for me. (Assuming the language code of the wiki is one that has variants like zh or sr);

(I'm testing Serbian, because I can't make heads or tails out of Chinese characters, but I can tell the difference between Latin and Cyrillic.)

http://sr.wikipedia.org/w/api.php?action=parse&text=foo&prop=text&disablepp produces "foo" (plus some html). (aka no variant)

http://sr.wikipedia.org/w/api.php?action=parse&text=foo&prop=text&disablepp&uselang=sr-el produces "foo" (aka, the Latin variant is selected)

http://sr.wikipedia.org/w/api.php?action=parse&text=foo&prop=text&disablepp&uselang=sr-ec produces "фоо" (aka Cyrillic variant)

This also works using the page parameter as well. Thus, this is supported via the uselang parameter, so closing works for me.

Thanks for that, I guess this is new in 1.17 which is why it is not in the documentation returned by api.php.

Does it also support &variant=, like index.php uses ?

(In reply to comment #3)

Does it also support &variant=, like index.php uses ?

seems it does.

http://sr.wikipedia.org/w/api.php?action=parse&text=foo&prop=text&disablepp&variant=sr-el

http://sr.wikipedia.org/w/api.php?action=parse&text=foo&prop=text&disablepp&variant=sr-ec