You can do it with a URL call to the Wikipedia API like this:
http://en.wikipedia.org/w/api.php?action=query&prop=revisions&rvprop=content&format=xmlfm&titles=Scary%20Monsters%20and%20Nice%20Sprites&rvsection=0
Replace the titles= section with your page title, and format=xmlfm to format=json if you want the article in JSON format.