Orkut API: counters.list

[Dev Eloper]

Hi all,

I'm using rest API v2 to get the numer of scraps and photos of my
orkut profile.

By this link

http://code.google.com/apis/explorer/

I have try to use the counters.list method by inserting in the
required fields my userId (I have got it by using orkut-os-client).

The response code is 401, and return message says me "Login Required".

The URL obtained from my call is:

https://www.googleapis.com/orkut/v2/people/me/counters?pp=1&key={YOUR_API_KEY}

How can I perform this call in the right way?

TY.