Development Integration Overview

Integrate eProcessing Network solutions directly into most Web pages, shopping carts, and third-party software. ePN provides specs, sample code and support at no additional charge. Listed below are the tools to payment-enable your solution with eProcessing Network.

TDBE Transparent Database Engine Integration

The Transparent Database Engine Integration (TDBE) is an Application Programming Interface (API) that allows you to integrate your website or application to perform credit card, debit card, gift card, and check transactions.

TDBE allows you to collect customer, order and shipping information to process transactions from your own secure servers. POST the transaction information to TDBE and we will reply with a comma delimited response. Integrating with the TDBE requires advanced programming skills.

Websites and applications that collect and maintain customer order information can use the TDBE to seamlessly process transactions without the customer ever leaving the website. All applications that communicate with the TDBE are required to securely transmit transactions. Developers generally must install the required security libraries for the language being used on their own server. Installing these libraries is beyond the scope of the support offered by eProcessingNetwork.

DBE DataBase Engine

The Database Engine Integration (DBE) was developed for merchants that securely collect and save customer, order and shipping information to their own database, but wish to leave the secure collection of credit card data to us.

You can pass your customers information and a few order details to our secure hosted page, where we collect all the credit card data and processes the transaction on a real-time basis. After the transaction has been processed, we can automatically post back to you or we can present an authorization page on our site that indicates the status of the transaction with a redirect button.

The button is directed at the URL provided in your post. Just specify your database ID and the URLs for your form handlers with ReturnApprovedURL and ReturnDeclinedURL. You can bypass the Auth/Approval page and automatically redirect and post to your URL by passing Redirect = 1.

WOFG Web Order Form Generator

The ePN Web Order Form Generator assists you in creating order forms for your Web site that tie into ePNs Web Order Template. Advanced options available for the ePN Web Order Template are in the documentation below. The Order Form Generator, will walk you through defining options that once defined, will generate a Web Page that is tailored to your products.

The ePN Order Form Generator produces one HTML page each time it is executed, which may be saved to your computer. Use your favorite HTML editor to customize each of those pages as you see fit.

SDK for Mobile Processing

The SDK provides a framework for processing both swiped and keyed transactions via eProcessing Networks' secure gateway. We support the ePNMobile iMagPro encrypted card reader for card present, swiped transactions.

Supporting the iOS and Android platforms, our SDK provides key methods for card reader interaction.

Get The SDK

Authorize.Net Emulation

For developers who have already integrated Authorize.Net, eProcessing Network offers an Authorize.Net Emulator, to better utilize our processing services.

We support the following protocols:

  • AIM (Advanced Integration Method)
  • SIM (Simple Integration Method)
  • DPM (Direct Post Method)
  • CP (Card Present)

For documentation on these protocols, please download it directly from Authorize.Net.

Hash and SIM

To support the response hash used by all protocols as well as the fingerprint hashing used by the SIM protocol, eProcessing Network uses the RestrictKey in the "Processing Controls" section of the eProcessing Network Merchant Support Center (ePN/MSC). Use this RestrictKey as your secret key for hashing.

Typically all a developer has to do is change the posting URL from Authorize.Net to eProcessingNetwork.

Change this link:

To one of these links, depending on the integration method:

AIM Users:
SIM Users:

Then just pass in the merchant's eProcessing Network information in place of Authorize.Net account information.

  • Use the ePNAccount number for the x_login value.
  • Use the Restrict Key for the x_trankey value.
  • If you would like to utilize ePN's Processing Control as the default fraud prevention tool with the Authorize.Net™ Emulator, do NOT submit the x_type variable at all. (SIDE NOTE: the Processing Controls section can be accessed by logging into the Gateway Account and selecting Processing Controls from the navigation menu.)

Integration Diagnostics

Follow the steps below to diagnose problems you may encounter with your integration:

  1. Temporarily change the URL to which you are posting your transactions to:
  2. Include a variable called email (case insensitive) to send a reflection of your variables and their value to that email address.

This URL will generate a Web page that displays exactly what was sent to it, helping confirm that you are correctly sending required information.


Include a variable called PostURL (case insensitive), with a value of where you are posting to, such as:

Include a variable called email (case insensitive) and this will send a reflection of your variables and their value to that email address.

For questions, suggestions or special requests, email us at