The api will output JSON.
...
The url scheme will be like so:
http://armory.warmane.com/api/character/name/realm/type (summary, achievements)
Summary will include equipped items, achievement points, pvp stats, general character information.
Achievements will be achievement name, id, earned date.
http://armory.warmane.com/api/guild/name/realm/type (summary, members, achievements)
Summary will be general guild information, achievement points (cata+), total members.
Members will be total members, race, name, class, achievement points, pve points, pve rank, professions
Achievements (Same as character)
http://armory.warmane.com/api/team/name/realm/type (summary)
Summary will be all team information, rank, member information.
All urls will only ever support GET requests.