Gain Commerce NMI Payment Gateway for WooCommerce

The Gain Commerce NMI Payment Gateway for WooCommerce is a secure, flexible payment processing plugin for your WooCommerce store. Built with full support for WooCommerce Checkout Blocks and High-Performance Order Storage (HPOS), this plugin provides a seamless checkout experience.

Achieve top-tier security with full PCI-DSS Compliance through the NMI payment gateway, utilizing Collect.js for safe data tokenization that keeps sensitive card data off your server.

Merchants gain essential features like Authorize Now and Capture Later, easy refunds, and voids—all managed directly from your WooCommerce dashboard. Accept major credit cards, Apple Pay, Google Pay, and utilize Dynamic Descriptors and AVS/CVV response logging to protect your business.

Free Plugin Features

• Easy WooCommerce Integration: Seamless customer checkout experience.
• PCI-DSS Compliant: Uses NMI Collect.js for secure browser tokenization.
• Digital Wallets: Accept Apple Pay and Google Pay during checkout.
• Customer Vault: Secure remote storage for customer card data.
• Dashboard Management: Authorize, Capture, Refund, and Void transactions inside WooCommerce.
• Card Brand Control: Accept or restrict specific credit card brands.
• Fraud Prevention: Record AVS/CVV response codes directly in order notes.
• Dynamic Descriptors: Pass custom descriptors to customer credit card statements.
• Order Ledger Data: Automatically send WooCommerce shipping info to the NMI ledger.
• Developer Logging: Built-in debug logging to troubleshoot issues quickly.

Premium Plugin Features

• ACH Payments: Accept electronic check transfers through the ACH network.
• Stored Payment Methods: Allow returning customers to select saved cards/ACH accounts from the Customer Vault.
• 3D Secure 2 (3DS2): Advanced fraud prevention; fully PSD2 / SCA compliant.
• WooCommerce Subscriptions: Full compatibility for automatic recurring payments.

System Requirements

• Active NMI payment gateway account
• WooCommerce version 8.0 or higher.
• WooCommerce HPOS (High-Performance Order Storage)
• Valid SSL Certificate

Source Code

The source code for the minified JS/CSS is available at:
Gain Commerce NMI GitHub Repository

Build instructions:
1. Clone the repository.
2. Run npm install to install dependencies.
3. Run npm run build to generate production assets.

External Services

This plugin connects to the NMI payment gateway to process transactions.

• Service: NMI Payment Gateway
• Purpose: Process credit card payments securely.
• Data Sent: Encrypted card tokens, order details, and shipping info.
• Terms of Service | Privacy Policy

Tokenization via Collect.js:
The plugin loads NMI’s browser script (https://docs.nmi.com/docs/collectjs) during checkout to tokenize payment details before data reaches your server.