You can get the thumbnail of any wikipedia page using prop=pageimages
. For example:
http://en.wikipedia.org/w/api.php?action=query&titles=Al-Farabi&prop=pageimages&format=json&pithumbsize=100
And you will get the thumbnail full URL.
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…