Is it possible to access a user's Google +1 (Plus One) history via an API?

Question

I would like to access a user\'s Google Plus One history

With +1 enabled, the history is saved in your Google profile and optionally can be displayed:

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Answer 1

Dave, I'm not sure about a user's history, but the count for particular URL is available via a JSON-RPC service (https://clients6.google.com/rpc). Here's a little post on how to: http://www.johndyer.name/post/Getting-Counts-Twitter-Links-Facebook-Likes-Shares-and-Google-Plus-One-Buttons.aspx

I'm guessing that same service can get additional data, but I can't find any public documentation either.