Google+ has released a rough outline on their API for accessing data. The Google+ API only allows for read-access to data, but this will still allow you to integrate a visitors social features around Google+. API calls can either be completed via an API key or an OAuth 2.0 token for user data.The Google+ API follows a typical REST design involving HTTP GET on many API calls and the results are in JSON format.Here is an example API call and response from the web site:
Request
GET https://www.googleapis.com/plus/v1/people/{userId}
Response
{
"kind": "plus#person",
"id": "118051310819094153327",
"displayName": "Chirag Shah",
"url": "https://plus.google.com/118051310819094153327",
"image": {
"url": "https://lh5.googleusercontent.com/-XnZDEoiF09Y/AAAAAAAAAAI/AAAAAAAAYCI/7fow4a2UTMU/photo.jpg"
}
}
For now the Google+ API covers People, Activites, and Commets. Google has released Google+ API Libraries for various languages that can be downloaded along with starter scripts.
