Not an official one, but the next best thing. I do PHP coding for my day job so this caught my attention:
MySpace Profile Updater
This class can be used to update the profile of a MySpace user
It connects to the MySpace site and authenticates as a given user.
The class retrieves the user profile fields and submit them with the new values.
If I had the time, I'd love to play with this -- perhaps integrate it with the moshi template. It could be used, for instance, to create a moshi demo page.
You can download it from the phpclasses.org site (registration required):
http://www.phpclasses.org/browse/package/3434.html