Note: The Google+ API currently provides read-only access to public data. All API calls require either an OAuth 2.0 token or an API key. - Google Plus is a service to share links, photos and other content. The Google Plus API allows developers to access publicly-available Google Plus content, including user information and publicly shared items. The Google+ API is the programming interface to Google+ that allows you to integrate your app or website with Google+. This enables users to connect with each other for maximum engagement using Google+ features from within your application with resources for People, Activities, and Comments. Google Developers provides APIs, software development tools, and technical resources that allow communication with Google Services and their integration to other services. Google is a technology company that specializes in Internet-related services and products that includes online advertising technologies, search, cloud computing, software, and hardware.