NMI Gateway Integration & Payment Processing
GoPayhawk uses NMI as a primary processing gateway, giving merchants developer-friendly API access, ACH, recurring billing, and card-present support in one account.
GoPayhawk + NMI
NMI (Network Merchants Inc.) is a developer-friendly gateway used by independent software vendors, SaaS platforms, and merchants who need more than a basic checkout. GoPayhawk processes through NMI, so merchants get full API access to payment capture, tokenization, recurring billing, ACH transfers, and card-present transactions under a single merchant account. For businesses building software integrations or managing recurring revenue, NMI provides the technical depth that simpler gateways cannot match.
Card-Present & Card-Not-Present
NMI handles both in-person terminals and online card-not-present transactions through a single account and API. No separate gateway accounts for your physical and digital channels.
ACH & Recurring Billing
Set up recurring billing schedules, tokenize customer card data, and initiate ACH bank transfers through NMI's API. Subscription businesses and B2B merchants with recurring invoice cycles rely on this daily.
Developer-Friendly REST API
NMI's REST API is well-documented and widely supported. Integration follows standard developer workflows. GoPayhawk's advisor coordinates API credential setup and is available during testing.
ISV & Platform Support
Independent software vendors and platforms that want to embed payment processing into their product can do so through NMI. GoPayhawk provides the merchant account and processing relationship.
How to Connect GoPayhawk to NMI
Setup is handled by your GoPayhawk advisor. You do not manage technical configuration alone.
Apply for a GoPayhawk Merchant Account
Your advisor gathers your processing volume, business type, and integration requirements to begin approval.
NMI Gateway Credentials
After approval, GoPayhawk provisions your NMI API keys, security keys, and account identifiers needed for integration.
Integration & Testing
Your developer integrates using NMI's API documentation. GoPayhawk's advisor is available during integration testing.
Go Live
Live transactions begin. Your NMI gateway is fully operational with GoPayhawk's processing rates and support.
Ready to Connect NMI to GoPayhawk?
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NMI Integration FAQ
Yes. NMI supports in-person card-present transactions through compatible terminals as well as card-not-present e-commerce and MOTO transactions. Your advisor confirms the right configuration for your business.
Yes. GoPayhawk supports ACH bank transfers through NMI for businesses that need to accept payments directly from customer bank accounts. This is common for B2B payments, subscriptions, and high-ticket services.
Yes. After your merchant account is approved, GoPayhawk provisions your NMI gateway credentials including API keys and configuration details needed for integration.
Both are capable gateways. NMI is often preferred by developers and ISVs for its REST API flexibility, recurring billing depth, and multi-channel support. Authorize.Net has a larger installed base and more ready-made shopping cart plugins. For custom software builds, NMI is typically the stronger choice.
Yes. ISVs and platforms can integrate NMI and GoPayhawk into their product so customers process through the combined platform. Contact your advisor to discuss the ISV arrangement.
Also relevant: E-Commerce Processing — B2B Payments — Authorize.Net
View the full integration directory: GoPayhawk Integrations