Payment systems for sites like ebay


I'm building an item mediator portal, something like ebay where people can sell stuff and other people buy it. What payment gateway or systems out there to use that does this? What I want to do is have the sellers connect their account to the system to receive money and the buyers just pay with credit card OR from their account. I'm also taking a percentage of the items sold.

How would I go about setting up the logistics and what 3rd party system would I be using?


asked Sep 9 '11 at 03:26
Shawn Mclean
220 points
  • Shawn from my understanding it sounds like you want to: Have visitors of your site list items for a certain price. Have a buyer purchase it and you get a percentage of the transaction? So you are looking for a service that can make this easier on you? One way would be to collect the initial transaction amount directly into your account/gateway (pay the 3-4% transaction fees) - then do another transaction via paypal to the seller for the bulk of the money. (another 3-4% would then be taken I think) - you are looking for a product or service to ease this process, correct? – Ryan Doom 12 years ago
  • @ryan Doom, yes – Shawn Mclean 12 years ago

2 Answers


The best way to do this would be to setup a payment processor to accept credit cards for the items being sold. From there, you would have to program your website to create a balance for the seller which would include the amoutn of the sold item minus the fees your site deducts. The final step would be to deposit a seller's funds to them either through ACH or paypal.

So essentially...

Buyer pays with credit card >>> You

You subtract seller fees

You transfer balance through ACH or Paypal >>> Seller

An example of a company you would use is which will set you up with a merchant account and gateway such as

Your coder would have to build all of this into the code to properly deduct your commission fees.

answered Nov 9 '11 at 05:21
344 points


This question has been touched on several times before; a quick search on this site may help you solve your dilemma. Also, a few popular payment processors are explained in Business of Software written by Joel Spolsky including a comparison of "pure" vs. "traditional" payment processors.

answered Sep 9 '11 at 06:25
Seth Rogers
713 points

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