I'm searching for such service, but not with the image output (as in this 'status bar' case), but with the text input.
I think this should provide geocaching.com itself, as long as it provides the statusbars as well (this service Troublemaker... mentioned is in fact only a formular wrapper if I'm right).
I would compare this to twitter - when I want to know some statistics about a certain account, I'll just send a request at
https://api.twitter.com/1/users/show.json?screen_name=<account_name>
and it returns some formated statistics, which I'm able to parse. I haven't found such API at geocaching though...
So is there any way how to get this info from the outside?