List of the Top 4 Payment Facilitation (PayFac) Platforms for Linux in 2025

CARDZ3N facilitates international transactions for various payment methods, including credit cards, ACH, SEPA, and over 140 cryptocurrencies. The platform specializes in handling payments for high-risk sectors and emerging markets, covering areas such as CBD, cryptocurrency exchanges, gambling, and travel, among others. Additionally, CARDZ3N provides a competitive Stripe Alternative, with fees beginning at 2.25% for non-profits and 2.75% plus $0.25 for e-commerce businesses. Beyond these services, CARDZ3N also presents a range of payment solutions, including options for ACH, payroll and HR services, employee benefits, and business capital support. At CARDZ3N, our goal is to address the critical challenges faced by our diverse clientele, regardless of their size. It is our distinctive methodology that sets us apart and defines our unique value proposition in the market.

Payrix is dedicated to becoming the global frontrunner in embedded payment solutions tailored for specialized business software. Our aim is to empower our clients with enhanced flexibility, confidence, and a reliable system that reduces obstacles, creates fresh revenue streams, and simplifies experiences for their customers. Notable clients like Real Green Systems and Storable have leveraged our distinct platform, paired with a personalized service approach, enabling them to utilize embedded payments for their expansion and creative advancement. With Payrix, the opportunities are limitless and continually evolving to meet the needs of our partners.

Deliver an outstanding payment experience for your merchants and their customers across various platforms and devices, including in-store, mobile, online, and self-service options, all facilitated through a unified, all-encompassing platform. Our flexible payment solution is crafted to provide ISVs with the essential tools to improve customer service, generate payment revenue, and optimize profits with each transaction. Successful ISOs transcend basic payment processing; they can increase earnings by offering additional value to their merchants via NMI’s all-inclusive commerce enablement platform. By providing a wide range of payment processing solutions under your own banking brand, you can unlock new revenue streams and strengthen merchant loyalty. The integrated payment facilitator technology allows your merchants to get started swiftly, enabling real-time provisioning of merchant accounts and gateway services. While standardized payment solutions may lack the flexibility needed by expanding businesses, you have the opportunity to tailor your offerings to perfectly align with your customers' needs and your distinctive business model, thus ensuring both scalability and adaptability. This strategic approach not only enhances your service offerings but also positions your business for sustained success in an ever-evolving market landscape. Ultimately, by prioritizing customization, you can create a more satisfying experience for all parties involved.

UniPay is a versatile, open-source payment gateway that leverages cutting-edge technology to cater to businesses of all sizes. As a global payment processing provider, we offer robust connectivity, enhanced security, and dedicated support to our clients. Our innovative features are designed to meet the specific demands of each customer, encompassing services such as merchant onboarding and underwriting, effective chargeback management, development of Acquiring Relations, assistance for Payment Facilitators, and the implementation of EMV terminal solutions. The UniPay Platform also presents an economical white label option, in addition to an on-premise software license that includes the source code, along with the PayFac Payment Platform, which guarantees exceptional quality in payment processing. With UniPay, businesses can seamlessly integrate a reliable payment solution that evolves with their needs.