Powerful, flexible payment gateway with NMI

Connect to your choice of processors, devices, and platforms — backed by Synapse’s low-cost merchant services.

Key Features of NMI + Synapse

Processor-agnostic gateway

Customizable hosted payment pages

Tokenization & vaulted card storage

Smart routing for lower costs

Developer-friendly API & SDK access

Invoicing and recurring billing

What is NMI?

Omnichannel payments made simple

NMI is a gateway built for flexibility. Whether you’re a SaaS company, ISV, or multi-location merchant, NMI connects your software or hardware to a wide range of processors, devices, and payment methods — online and in-store.

API-first gateway built for developers

RESTful APIs for checkout, customer vault, invoicing, and more
iOS/Android SDKs
Hosted payment forms or full white-label front ends
Sample code and sandbox available
Easy swap-out for Authorize.net-style integrations

Who uses NMI?

SaaS platforms integrating payments
ISVs needing white-label checkout
Merchants requiring omni-channel support
Developers building custom workflows
Gateways needing multi-MID routing
Companies switching off Authorize.net Stripe
E-Commerce and Card-Not-Present merchants

NMI gives you options. Synapse makes them work.

Access to over 125 processors
Lowest-cost interchange-plus pricing
One-on-one implementation support
Hosted or API-based options for every environment
PCI compliance & tokenization built-in

Testimonials

Trusted by businesses nationwide — here's what real clients say about partnering with Synapse

Ready to build smarter with NMI?

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We help businesses streamline their transactions and save money on merchant fees. We offer state-of-the-art technology and flexible pricing.

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