Description

The Authorize.net (SIM) gateway connects Event Espresso checkout to Authorize.net’s Server Integration Method API, processing event registration charges directly from the registration form without redirecting the participant off the site.

Main Features

  • SIM Processing at Checkout
    Captures credit card details within the registration form using the Server Integration Method.
  • Native Option in Event Espresso
    Adds Authorize.net as a selectable gateway alongside other enabled methods.
  • Real-time Payment
    Submits the transaction immediately and returns approval or rejection before confirming the registration.
  • Configuration via Admin Panel
    Exposes API Login ID, Transaction Key, and toggles between test and production modes.
  • Automatic Registration Confirmation
    Updates the registration status once Authorize.net approves the charge.

Benefits of Authorize.net (SIM) Gateway

  • Non-Redirecting Checkout
    Participant completes the registration on the same page, reducing abandonment due to domain change.
  • Immediate Event Billing
    The registration cost deposits into the Authorize.net account at the time of registration, without waiting for manual processing.
  • Preserved Visual Identity
    The payment form inherits the site’s layout, maintaining a consistent experience from start to finish.
  • Simplified Reconciliation
    Transactions are tied to the Event Espresso registration ID, simplifying cross-referencing with the Authorize.net dashboard.

Who Is This For?

  • Conference and workshop organizers already operating with an Authorize.net account and charging paid registrations.
  • Associations and clubs selling recurring tickets for internal events via Event Espresso.
  • U.S. schools, courses and training centers with enrollment flows processed by Authorize.net.

For those already using Authorize.net as the primary acquirer and migrating the event calendar to Event Espresso, this gateway eliminates the need to maintain a parallel payment method or redirect the participant to an external billing page. Registration and transaction happen in a single flow, with instant return and registration tied to the base plugin dashboard.

Frequently asked questions

Is Event Espresso Authorize.net (SIM) Gateway GPL-licensed?

Yes. Event Espresso Authorize.net (SIM) Gateway is distributed under the GPL (GNU General Public License). You may legally use, modify and redistribute it on as many sites as you want.

Can I use Event Espresso Authorize.net (SIM) Gateway on multiple sites?

Yes. You can install Event Espresso Authorize.net (SIM) Gateway on as many sites as you want. Only automatic updates through Ultrapack Auto Updater have a limit: from 3 to 80 sites, depending on the plan.

How much does Event Espresso Authorize.net (SIM) Gateway cost at Ultrapack?

Event Espresso Authorize.net (SIM) Gateway costs US$2.99 as a single purchase, and it is also included in the subscription plans starting at US$12/mo (VIP I).

Does Event Espresso Authorize.net (SIM) Gateway include updates?

Yes. The current version of Event Espresso Authorize.net (SIM) Gateway is 1.0.4.p, published at Ultrapack on Jul 6, 2019. Subscribers update straight from the WordPress dashboard with UAU (Ultrapack Auto Updater).

Is Event Espresso Authorize.net (SIM) Gateway scanned before publication?

Yes. Every version of Event Espresso Authorize.net (SIM) Gateway goes through a malware scan (ClamAV and YARA rules, at UltraHub) before it is published.