Best Payment Gateways 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.

ChargeOn is a 100% Salesforce-native application designed to simplify, automate, and optimize how businesses handle payments — all within Salesforce. It bridges the gap between your Salesforce CRM and 14+ leading payment gateways, giving your team a unified platform to streamline your overall payment management. Why Businesses Need ChargeOn Businesses often faced challenges in receiving Salesforce payments due to manual processes. these processes slowed revenue recognition, resulted in duplication of records and imped customer experiences. ChargeOn eliminates these challenges by providing a seamless payment ecosystem inside Salesforce — ensuring faster collections, improved cash flow, and improved visibility in customer's payment journey. No more switching between systems or chasing failed payments — everything happens in one place, securely and automatically.

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.

NMI Gateway is a white-label, omnichannel payment platform for ISOs, banks, software companies and fintechs that want to deliver secure, scalable and customizable payment acceptance. Supporting online, in-store, in-app, mobile and unattended commerce, NMI Gateway integrates with 150+ processors, 125+ shopping carts and multiple business platforms. NMI does not sell directly to merchants, we power 4,000+ partners serving over 1 million merchants worldwide and give them control over branding, pricing and merchant relationships, backed by developer-friendly APIs and modular functionality. Key capabilities include omnichannel support, white-label customization, multi-MID management, P2P encryption, advanced fraud prevention, centralized reporting and compatibility with 235,000+ devices. Processing 5.8B+ transactions annually and $440B+ in volume, NMI Gateway delivers the flexibility, scalability and security partners need to support merchants of all sizes through one centralized platform.