Amazon has today announced the launch of a new service named Login with Amazon, allowing over 200 million active Amazon customers to login to applications, games and websites, allowing developers to add single sign-in features to their services.

The service has already been tested on the websites, Zappos and Woot for which, Amazon claims that Zappos saw 40% of its new customers sign in with the service, and Woot customers used the service two times more often than any other social login on their site.

The service can be integrated easily, using the OAuth 2.0 authorization framework, and can be integrated from today by including code from login.amazon.com.

Check out the video below for more information:

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