Best Payment Facilitation (PayFac) Platforms for Linux

NMI Payments is an embedded payments solution that lets SaaS platforms, Software companies and ISVs integrate, brand, and manage payment acceptance directly within their software—without becoming a PayFac or building complex infrastructure. As a full-stack processor, acquirer, and technology partner, NMI handles onboarding, compliance, and risk so you can stay focused on growth. The modular, white-label platform supports omnichannel payments, from online, mobile and in-app to in-store and unattended. Choose from full-code, low-code, or no-code integration paths and launch in weeks, not months. Built-in risk tools, flexible monetization, and customizable branding help you scale faster while keeping full control of your experience. With NMI’s developer-first tools, sandbox testing, and modern APIs, you can embed payments quickly and confidently.

Payrix is on a mission to be the global leader in embedded payments for vertical software businesses. We are committed to giving our clients more freedom and peace of mind with a proven solution that helps eliminate friction, unleash their possibilities with new revenue, and make their customers’ lives easier. Payrix clients including Real Green Systems, Storable, iClassPro and SupporterHub have harnessed our unique, all-in-one platform — combined with a white-glove approach — that enables them to capitalize on the opportunities within embedded payments for growth, innovation, and transformation.

CARDZ3N supports global payments for credit cards, ACH, SEPA, and Crypto (140+ coins). CARDZ3N processes payments for emerging markets & high-risk businesses, including CBD, crypto exchanges, gambling, travel, and more. We also offer a Stripe Alternative with rates starting at 2.25% for non-profits & 2.75% & $0.25 for e-commerce. CARDZ3N also offers other payment options, such as ACH, payroll and HR, benefits, or business capital. CARDZ3N Our mission is to solve the most pressing problems facing our clients, large and small. Our unique approach is what distinguishes us and what makes us different. We offer a wide range of services and solutions that help organizations achieve their vision, facilitate change, and maximize performance and productivity.

UniPay is a commercial open-source payment gateway built on modern technology and easily adaptable to businesses of any size. We’re the payment processing company that can deliver the connectivity, security and valuable support worldwide. We do this by addressing the unique needs of our customers through our advanced technology and functionalities, including omnichannel payment processing, merchants onboarding and underwriting, advanced recurring billing, chargeback management, Acquiring Relationships development, Payment Facilitator assistance, EMV terminal solution implementation and so. With UniPay Platform you have the options of an affordable white label gateway solution, a full on-premise software license (including the source code), and the PayFac Payment Platform which ensures the top-quality payment processing experience.