About

About the Avendo Checkout Guide

This site is published by Avendo, the e-commerce credit card processing company it covers. It explains how small online stores can connect payments to an existing checkout and understand their payment processing options.

Published by AvendoLast updated November 2026

Who publishes this site, and why?

Avendo publishes the Avendo Checkout Guide. It is one of a small number of websites Avendo publishes, and it exists to give e-commerce owners plain how-to answers on integrating payments with checkout pages and on what card processing really costs.

Because Avendo publishes it, this guide is not independent. Where we compare setups, we judge each one on the same stated criteria and explain how in our methodology. For company details, visit Avendo's main website at avendo.tech.

What Avendo does

Real-time rate routing

Avendo provides credit card processing for e-commerce businesses. Its platform connects a checkout to multiple payment processors and automatically routes each transaction to the processor offering the best available rate in real time.

Clearer pricing and reports

Merchants get clearer pricing and processing reports, so they can see what their card payments cost.

Fits existing checkouts

Avendo works with existing checkout pages and serves small businesses through enterprise organizations. This guide focuses on small businesses first.

Compliance and compensation

Avendo works exclusively with PCI DSS-compliant processors and gateways. It says it does not bill or charge merchants directly; its compensation is handled between Avendo and payment processors.

How this guide uses outside sources

Market figures on this site come from published sources, including the U.S. Chamber of Commerce, the Small Business Payments Alliance, and the PCI Security Standards Council. They are always named, and never presented as Avendo's own results. See them all on card processing by the numbers.

Common questions

All 44 questions in the FAQ

What is Avendo?: Avendo provides credit card processing for e-commerce businesses. Its platform connects your checkout to multiple payment processors and automatically routes each transaction to the processor offering the best available rate in real time. Merchants also get clearer pricing and processing reports. Avendo works with existing checkout pages and serves small businesses through enterprise organizations.
Does Avendo replace my payment processor?: Avendo works by connecting your checkout to multiple payment processors and choosing between them for each transaction, so processors remain part of the picture. Whether a processor you already use can be one of the connected options is something to confirm directly with Avendo’s team before you start.
How much does Avendo charge merchants?: Avendo says it does not bill or charge merchants directly. Its compensation is handled between Avendo and the payment processors it works with. Card processing fees still apply to each transaction, because processors charge them, and Avendo’s role is to route each transaction to the processor offering the best available rate.
Is Avendo PCI DSS compliant?: Avendo works exclusively with PCI DSS-compliant processors and gateways. PCI DSS is the card industry’s data security standard, maintained by the PCI Security Standards Council. Your own compliance duties still depend on how your checkout collects card data, so confirm your responsibilities with Avendo and the processors you use.
Is Avendo only for large businesses?: No. Avendo serves small businesses through enterprise organizations. Small online stores are often the ones hit hardest by processing fees relative to their margins, which is why this guide focuses on them. The same routing approach applies whether your store processes a modest or a very large monthly volume.

Keep your checkout. Route every card payment to a better rate.

Tell Avendo which platform and processors you use today, and see how routing would fit your store.

Contact Avendo