FluentCart – Merrco Payment Gateway

by Shawn DeWolfe | Mar 22, 2026

The FluentCart Merrco Payment Gateway plugin connects your FluentCart store to Merrco, a Canadian payment processor built for regulated industries including cannabis, CBD, and cannabis-ancillary businesses. This plugin adds Merrco as a payment option at checkout, so your customers can pay by credit card through a secure, PCI-compliant gateway.

What This Plugin Does

This plugin registers Merrco as a payment gateway inside FluentCart. It uses Merrco’s open API to process credit card transactions through your merchant account. Customers complete checkout on your site. The transaction moves through Merrco’s secure backend. A confirmation email goes to the customer automatically once the payment clears.

Who This Plugin Is For

This plugin is for Canadian store owners who use FluentCart and hold a Merrco merchant account. It is especially suited for cannabis retailers, CBD sellers, and businesses in regulated sectors that need a payment processor with industry-specific compliance knowledge.

Key Features

  • Merrco gateway at checkout – Customers see Merrco as a payment option and pay by credit card without leaving your site.
  • Secure transaction processing – All payments go through Merrco’s PCI DSS-compliant platform. Card data is handled on Merrco’s backend, not on your server.
  • Address and card verification – AVS (Address Verification Service) and CVV2 checks reduce the risk of fraudulent transactions.
  • Automatic order confirmation – Merrco sends a branded receipt email to the customer as soon as a transaction is approved.
  • FluentCart native integration – The gateway appears and behaves like any other payment method in FluentCart. No separate checkout page or redirect is required.
  • TSYS-certified platform – Merrco processes through the TSYS platform, which supports a wide range of certified gateway integrations.

Requirements

  • FluentCart installed and active on your WordPress site
  • An active Merrco merchant account
  • Your Merrco API credentials (provided by Merrco on account setup)
  • PHP 7.4 or higher
  • WordPress 6.0 or higher

Setup

After you install and activate this plugin, go to FluentCart > Settings > Payment Gateways. Select Merrco and enter your API credentials. Save the settings. Merrco will appear as a payment method at checkout immediately.

About Merrco

Merrco is a Canadian payment processing company that specialises in the legal cannabis and CBD sector. It offers in-person terminals, hosted payment pages, and ecommerce gateway integrations through its PayHQ platform. Merrco provides each merchant with a dedicated account, 24/7 support, and real-time reporting through its cloud-based infrastructure.