+1 for something that would impact the community in such a large way, yet stil be so relatively simple to implement. Any development team worth their salt would have this up and running in no time.
I really love the idea of an api and would really be a huge help for a project I'm working on. Please supercell! You have done great things up until now so I hope you guys do another great thing which is IMPLEMENT THIS! And also thanks for the recent amazing update. Really love it!
I too am creating a website for my clan, and it would be nice to have the ability to read from the clan wars database..
It'd allow me to fetch all my opponents' names from the database in the right order, to then make a target calling system that way.
I believe Clashcaller uses the same principle. EDIT: Clashcaller doesn't actually fetch stuff from the game, it makes you enter the names yourself.
The user account system the OP suggested would also be very handy.
This is one of the best next improvements you could make to this game, and, take it from me - it's not that hard - I and a million other volunteers could do it for you. (Well, not quite a million probobly )