Amazon URL Parameters

Question

Okay, that's why I already joined the Amazon. I dynamically create links based on the results of their API. I am trying to put a customer in front of permission to add goods to the cart. I have this structure as an example:

http://www.amazon.com/gp/aws/cart/add.html?AssociateTag=your-tag-here-20&ASIN.1=B003IXYJYO&Quantity.1=2&ASIN.2=B0002KR8J4&Quantity.2=1&ASIN.3=B0002ZP18E&Quant. 3 = 1 & ASIN.4 = B0002ZP3ZA & Quantity.4 = 2 & ASIN.5 = B004J2JG6O & Quantity.5 = 1

This works great as long as I only sell amazons. What I'm trying to do is put them at the lowest price for this product (items that are sold on Amazon by other people / dealers).

I already have the lowest prices, etc. The problem is structuring the links to get them there. Do any of you know the parameters in the URL that I would add, or at least the list of parameters that I could sift through to find what I'm looking for?

Also, if this is a way to just put an item in your cart, how could you add them to the permission to add to the cart ... that would be much better!

Thanks in advance!

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