An anime? Not yet, if any. There is a manga series, though that covers the events in the games. It isn't exact and doesn't cover absolutely everything but they put it together in a nice story.
There currently is an Anime of Kingdom Hearts. Check your local book store.
No, but there is a manga
No, there is no Anime for Kingdom Hearts.
No
no only books and games
There is no Kingdom Hearts convention. There are cosplayers at anime expos who cosplay Kingdom Hearts though.
Kingdom Hearts currently is a video game series with a manga adaption. So no, it is not an anime.
There was no Anime released for Kingdom Hearts, but as for in the games, he first appeared in Kingdom Hearts I.
In a Comic store or A anime store.
It's not very likely that there will be one, there hasn't even been an anime yet. The anime will probably come first
No. A manga has been adapted by Shiro Amano, which is published under Tokyopop, but there is no Kingdom Hearts anime.
There is no convention for Kingdom Hearts. The thing is that many fans of the series cosplay these characters in other conventiosn such as the Anime Expo.