
NMI Payments gives developers, SaaS builders, ISVs and ISOs a simple path to embedded payments. As a full-stack processor, acquirer, and technology partner, NMI enables you to integrate, brand, and manage payment acceptance within your platform—without becoming a PayFac or building complex infrastructure.
The platform combines flexibility, scalability, and speed, offering white-labeled payments infrastructure that keeps your brand front and center. With omnichannel support for in-store, online, in-app, and unattended payments, you can deliver a consistent merchant experience across every touchpoint. NMI also manages onboarding, compliance, and risk, freeing your team to focus on innovation and customer growth.
Developer-First Experience
NMI’s developer-first environment puts full control in your hands. Build, test, and launch payments in a modern sandbox with clear documentation and ready-to-use code snippets. Guided onboarding flows and API recipes simplify integration, while low-code and no-code tools accelerate deployment. Business users can evaluate monetization options with instant revenue calculators and self-service sign-up.
Whether you’re embedding payments for the first time or scaling across channels, NMI helps you go live faster, stay compliant, and grow with confidence
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PayKings is a payment processing provider specializing in merchant account solutions for high-risk industries that often face challenges obtaining traditional payment services. The company offers a streamlined approval process powered by automated underwriting, allowing many businesses to gain access to payment processing capabilities within a short timeframe. Businesses can leverage merchant accounts, payment gateways, ACH processing, credit card processing, recurring billing, and virtual terminal solutions through a single provider. PayKings serves a broad range of industries, including adult entertainment, CBD, online gaming, firearms, debt settlement, travel, nutraceuticals, cryptocurrency, and other specialized markets. Fraud prevention tools and chargeback management services help businesses reduce risk while maintaining smooth transaction processing. The platform supports integration with leading gateways, eCommerce platforms, content management systems, and custom APIs. Dedicated account managers provide guidance throughout onboarding and ongoing operations, ensuring merchants receive industry-specific support. Transparent interchange-plus pricing models help businesses understand processing costs without hidden fees or long-term contractual commitments. PayKings enables high-risk businesses to access reliable payment infrastructure while supporting growth and operational stability.
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OpenTransact
A comprehensive platform designed to streamline, automate, scale, and oversee payment processes for businesses, ISOs, or financial institutions. Unlock your company's full capabilities by enabling a wider range of payment options swiftly and securely, eliminating the need for specialized in-house payment knowledge. Experience rapid integration without the hassle of outdated banking systems. OpenTransact’s modern APIs come with developer support readily accessible through Slack or email. You can link any payment method, provider, acquirer, or third-party services to your OpenTransact account, allowing for seamless payment dispatch to any processing service without the need to modify your integration. With compliance features for PCI-DSS, NACHA, and PSD2, OpenTransact can be tailored to meet local regulatory requirements while ensuring the protection of customer data, regardless of the payment method or geographical location. Once you implement OpenTransact, you can significantly decrease the developer effort needed to maintain multiple payment integrations. Additionally, real-time data synchronization across gateways provides enhanced flexibility and optionality across various processors, making it an efficient choice for modern payment operations.
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Interkassa
Interkassa, an international payment aggregator, supports 70+ payment methods and 100+ currencies. The service allows for accepting payments online, in-app, or cashless offline. We offer popular payment options like Apple Pay, Google Pay and QR codes.
Interkassa is active in Ukraine, CIS (excluding Russia and Belarus), Europe and Latin America. It also operates in Africa and Asia. It offers competitive pricing plans, round-the-clock customer support and seamless integration via API or pre-built CMS plug-ins. The company has been on the market since 2009. It supports over 4000 businesses, and processes 10,000,000 transactions per month.
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