Buy item from amazon programmatically with C#

I need to 开发者_高级运维buy item from Amazon.com programmatically without redirect to amazon web site for money withdraw?

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What I get from your question is you need Amazon as an underlying service for your applciation.

Have a look at

• Amazon WebServices Api

and particularly this

• Checkout by Amazon
• What Your Customers See
• Amazon Simple Pay

Hope this helps

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Your question is a little bit unclear, but I take it to mean that you would like to use Amazon Flexible Payment Service to complete a payment transaction without having the person who is paying sign in to their Amazon account and approve the payment. Yes?

You can't.

It is an intentional security measure. It prevents you from defrauding somebody.