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What is Stacks?
Welcome to an exceptional integration of pioneering hardware, software, and payment solutions specifically crafted to meet the distinct needs of your business. Stacks is engineered to ensure effortless transactions both in-store and online through the Stacks POS System and Stacks Payment Gateway, providing you with a seamless experience.
Want to learn more? Connect with a Stacks Specialist who can walk you through how our innovative POS and Payment solutions, powered by WAVit Technology, can significantly propel your business growth.
With unparalleled reliability and proficiency, Stacks stands out as the perfect payments partner for any business, whether you're a beloved local shop or overseeing an expansive restaurant chain spanning multiple states. It’s crucial to have a partner who truly comprehends your operations and specific requirements.
Stacks takes pride in delivering a comprehensive suite of state-of-the-art payment processing solutions designed to help you optimize value with each transaction. If you're already processing credit card payments, our services are guaranteed to surpass your current rates, leading to substantial savings on your overall expenses. Furthermore, we remain dedicated to continuously improving our offerings to adapt to the ever-changing landscape of your business, ensuring you remain ahead of the competition and can focus on what matters most—growing your enterprise.
What is NMI Payments?
NMI Payments transforms payments from a backend function into a strategic growth driver. Designed for software companies. SaaS platforms, ISVs and ISO partners, it enables you to embed, brand, and monetize payments directly within your software—without becoming a PayFac or taking on compliance complexity.
As a full-stack processor, acquirer, and technology partner, NMI manages underwriting, risk, and regulatory oversight behind the scenes. The result: faster go-to-market, stronger brand control, and new recurring revenue streams. With modular design and white-label flexibility, NMI adapts to your business model, whether you’re processing payments online, in-store, in-app, or unattended.
Key Benefits
Launch white-labeled payments in weeks, not months
Control pricing, share in transaction revenue, and own the customer relationship
Built-in compliance, risk, and fraud prevention tools
Flexible integration via no-code, low-code, or full API access
Developer-First Experience
NMI’s developer environment bridges business and technical needs. Developers gain instant sandbox access, prebuilt SDKs, and intuitive APIs to test, integrate, and deploy quickly. Guided onboarding, dynamic sandbox simulations, and drop-in components make payments easier to build and maintain. Business teams can explore revenue opportunities through self-service tools and instant earnings insights.
With NMI Payments, you can embed and scale payments without losing control—powering faster launches, stronger retention, and lasting growth
Integrations Supported
Alternative Payments
Axcess Merchant Services
BillPro
Braspag
Corefy
EPX
Edelweiss
Elavon
Heartland Payroll
Instabill
API Availability
API Availability
Has API
Pricing Information
Pricing not provided
Pricing Information
Contact us
Free Version
Free Trial Offered?
Supported Platforms
SaaS
Supported Platforms
SaaS
Android
iPhone
iPad
Windows
Mac
Chromebook
Linux
Customer Service / Support
Web-Based Support
Customer Service / Support
Standard Support
Web-Based Support
Training Options
Documentation Hub
Training Options
Documentation Hub
Webinars
Online Training
On-Site Training
Company Facts
Organization Name
Stacks Technology
Company Location
United States
Company Website
www.stackstechnology.com
Company Facts
Organization Name
NMI
Company Location
United States
Company Website
www.nmi.com/products/nmi-payments/
Categories and Features
Payment Gateways
Not specified
Payment Processing
Not specified
Point of Sale
Not specified
Restaurant POS
Not specified
Retail POS Systems
Not specified
Categories and Features
Embedded Payments
Not specified
Forms Automation
Not specified
Merchant Management
Not specified
Payment Facilitation (PayFac)
Not specified
Payment Gateways
ACH / eCheck support
Buyer Authentication
Credit / Debit Support
Customer Information Storage
Fraud Prevention
Invoicing
Multi-Currency
PCI Compliance
Point-of-Sale (POS)
Recurring Billing / Subscriptions
Reporting / Analytics
Payment Processing
ACH Check Transactions
Debit Card Support
Mobile Payments
Online Payments
POS Transactions
Receipt Printing
Virtual Terminals
Not specified