ISV Payment Integration
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Payrix vs NMI

A feature-by-feature comparison for ISVs integrating payments.

By Marcus Reed·

Payrix wants to be the facilitation layer for a platform, with compliance handled and processing mostly on its own acquiring network. NMI wants to be the gateway layer, connecting to 200+ processors and leaving the acquirer open. NMI's partner model sits between referral and full facilitation; Payrix offers full facilitation with managed compliance and has been part of Worldpay since 2021.

Feature Comparison

Payrix6.3
vs13 criteria
NMI6.8Winner
FeaturePayrixNMI
Integration Architecture77
API & Developer Experience66
White-Label Capabilities89
Processor Flexibility510
Pricing & Fee Structure67
Omnichannel & In-Person Payments58
Fraud & Security65
Revenue Sharing87
Merchant Onboarding77
Global Reach44
Recurring Billing67
Customer Support65
PayFac Options87

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Best for

Payrix

Best for ISVs wanting proven PFaaS technology with the backing of a global processor. Consider whether Worldpay ownership aligns with your independence and flexibility requirements.

Visit payrix.com ↗

Best for

NMI

Best for ISVs wanting white-label gateway capabilities with multi-processor flexibility. Ideal when the ISV needs to support multiple processors or offer processor choice to merchants.

Visit nmi.com ↗

Payrix vs NMI: What ISVs Need to Know

Choosing between Payrix and NMI for embedded payments is a decision that directly impacts your ISV’s revenue model, merchant experience, and technical architecture. This comparison breaks down where each platform excels from an ISV integration perspective.

Key Differences for ISVs

The most important distinction between Payrix and NMI comes down to how each platform approaches ISV payment facilitation. Payrix and NMI take fundamentally different approaches to merchant onboarding, revenue sharing, and platform integration — and those differences matter when you’re building payments into your software.

Integration architecture varies significantly between the two. ISVs evaluating Payrix vs NMI should consider how each platform handles sub-merchant onboarding, payment splitting, and settlement timing. The right choice depends on your specific vertical, transaction volumes, and how much control you need over the merchant payment experience.

Pricing and revenue economics also differ. ISVs earn money from embedded payments through the spread between what they charge merchants and what the processor charges them. The pricing model each platform uses — flat-rate, interchange-plus, or custom — directly affects your payment revenue per transaction.

Which Platform Fits Your ISV?

The best choice between Payrix and NMI depends on your ISV’s specific requirements:

  • Transaction volume: Higher-volume ISVs may benefit from interchange-plus pricing, while lower-volume platforms often prefer flat-rate simplicity
  • Merchant type: B2B merchants have different payment needs than consumer-facing businesses
  • Geographic scope: International payment support varies significantly between providers
  • Integration depth: Some ISVs need white-label checkout while others are fine with co-branded experiences
  • Revenue model: How much of the payment margin you want to capture determines which platform’s economics work better

The ISV Payment Integration Perspective

For ISVs evaluating Payrix vs NMI, the comparison shouldn’t stop at processing fees. Consider the total cost of integration, ongoing maintenance, and the revenue opportunity from embedded payments. The platform that generates the most payment revenue for your ISV while providing the best merchant experience is the right choice — and that calculation is different for every software company.

Evaluate both platforms against your specific use case. Request ISV-specific pricing from each, and compare the total economics including setup costs, per-transaction revenue, and the engineering investment required to integrate and maintain each platform.

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