Programmatically make Amazon purchase?

http://www.zinc.io/ shows that it is, in fact, possible to do this.

I've read around the net that you could do this by sending crafted _GET responses, although I, myself, am currently trying to figure out which ones to send.

UPDATE 2019/12/10 Even though my answer was accepted as the best answer it's outdated. Please see this answer: https://stackoverflow.com/a/17180929/799155

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It's not possible – I guess for a bunch of security reasons. Read through the thread you posted in your question ;)

Lorraine@AWS, Aug 13, 2010 2:02 PM

Amazon does not offer APIs to place a customer order. Neither a Corporate Account or the Associate Program will allow you to build the type of solution you are describing.

Lorraine@AWS, May 13, 2011 4:17 PM

Amazon still does not offer this service, to the best of my knowledge, and this isn't something I would ever expect to see included in the Fulfillment Web Service which is specific to the FBA program.