kungkk blog: October 2011

A scope parameter is required by AuthSub and OAuth to identify which Google service(s) your application will have access to.

Google API	Service name
Google Analytics Data API	`https://www.google.com/analytics/feeds/`
Google Sites Data API	`http(s)://sites.google.com/feeds/`
Blogger Data API	`http://www.blogger.com/feeds/`
Book Search Data API	`http://www.google.com/books/feeds/`
Calendar Data API	`http(s)://www.google.com/calendar/feeds/`
Contacts Data API	`http(s)://www.google.com/m8/feeds/`
Content API for Shopping	`https://www.googleapis.com/auth/structuredcontent/`
Documents List Data API	`http(s)://docs.google.com/feeds/`
Finance Data API	`http://finance.google.com/finance/feeds/`
Gmail Atom feed	`https://mail.google.com/mail/feed/atom/`
Health Data API	`https://www.google.com/health/feeds/` `https://www.google.com/h9/feeds/` (H9 sandbox)
Maps Data API	`http://maps.google.com/maps/feeds/`
Picasa Web Albums Data API	`http://picasaweb.google.com/data/`
Portable Contacts API	`http://www-opensocial.googleusercontent.com/api/people`
Sidewiki Data API	`http://www.google.com/sidewiki/feeds/`
Spreadsheets Data API	`http(s)://spreadsheets.google.com/feeds/`
Webmaster Tools API	`http://www.google.com/webmasters/tools/feeds/`
YouTube Data API	`http://gdata.youtube.com`

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