Question: Is it the paypal API compatible with asp.net MVC? 
Does anyone know of any expamples of how to implement it?
Thank you.

Answer: 
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> **Source:** [Paypal add to cart multiple items form with discount](https://stackoverflow.com/questions/7840611/paypal-add-to-cart-multiple-items-form-with-discount/12936117#12936117)
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I have successfully integrated the PayPal express checkout with shopping cart in to one of my Asp.net MVC projects with discount codes, shipping charges etc.
Take a look at this site. <http://www.arunrana.net/2012/01/paypal-integration-in-mvc3-and-razor.html>   

It is specifically designed for MVC3 with Razor!