Google AJAX Feed API - Google Code

How do I start? Find out why it is useful to have a Google AJAX API key and how to sign up for one Read the developer documentation Use a wizard to add a feed control to your website Look at example projects Featured Video What is the Google AJAX Feed API? With the AJAX Feed API, you can download any public Atom or RSS feed using only JavaScript, so you can easily mash up feeds with your content

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Javascriptのみで、公開されているフィードを取得できるAPI。注目すべきは、クロスドメインでの取得が可能であること。セキュリティも配慮されてるらしい。