Is it possible to post opengraph on users' wall/feed/ticker WITHOUT running my own server?

Question

I am new to facebook development and I am still trying to figure out how things work for facebook development.
So my app, which is designed for iOS, wants to post an

Answer 1

This is how the Open Graph Protocol is defined (ogp.me). Objects exist as web pages for users to have richer web experiences. A non-mobile user must have a way to interact with your object when he sees the action on his ticker.

The Open Graph protocol enables any web page to become a rich object in a social graph. For instance, this is used on Facebook to allow any web page to have the same functionality as any other object on Facebook

To turn your web pages into graph objects, you need to add basic metadata to your page. We've based the initial version of the protocol on RDFa which means that you'll place additional tags in the of your web page.