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Online payment processing service for ACH and Credit Cards
With industry low transaction rates, no API surcharge, and revenue sharing opportunity, your business is poised to gain a profitable new recurring revenue stream.
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There are no mashups, developers or code associated with this API yet.
there is a C# client here : https://sandbox-api.paysimple.com/3.00/help/default.html
I developed a Java client for the PaySimple API. Contact me if interested.