Payment gateway for merchants

Maximize checkout performance and transaction optimization with a payment gateway for merchants designed to streamline every sale and boost customer satisfaction. ConnectPay delivers secure, compliant, and scalable infrastructure, ensuring your business processes payments efficiently while meeting the highest industry standards for reliability and data protection.

Contact sales

3.6B €

Yearly payment turnover

1.9M €

Processed transactions in 2025

75M €

Client funds held by ConnectPay

Partners

Payment Capabilities for Merchants

Accept Online Customer Payments

Our payment gateway for merchants securely processes credit card and digital wallet transactions through encrypted channels, integrating with e-commerce platforms and point-of-sale systems. This infrastructure enables real-time authorization, settlement, and reconciliation, reducing manual intervention and supporting efficient cash flow management for businesses.

Automated Fraud Detection and Compliance

Transaction data is continuously analyzed using machine learning models to identify suspicious patterns and flag potentially fraudulent activity in real time. Regulatory compliance is maintained through automated checks, such as KYC verification and transaction monitoring, integrated directly into the merchant payment processing workflow.

Seamless API Integration for Merchants

Merchants can connect their systems to the payment gateway using standardized APIs, enabling efficient transaction processing and real-time data flow. The integration supports automated reporting, transaction monitoring, and analytics, providing comprehensive visibility and control over payment operations within existing business infrastructure.

Multi-Currency Payment Gateway Support

This capability enables merchants to process transactions in multiple currencies, applying real-time FX rates and supporting automated settlement workflows. Integrated compliance controls and dispute management features help mitigate operational risks and ensure adherence to regulatory requirements across different jurisdictions.

Platform Features and Integrations

Robust PCI-Compliant Payment Infrastructure

Robust PCI-Compliant Payment Infrastructure ensures adherence to industry security standards through comprehensive regulatory frameworks and continuous compliance oversight. The platform’s modular system architecture and structured API design enable secure, scalable transaction processing while maintaining strict operational controls.

High-Availability Transaction Processing System

The High-Availability Transaction Processing System is built on a distributed architecture with redundant nodes to ensure continuous uptime and data integrity. Comprehensive compliance oversight and standardized API protocols support regulatory requirements and operational consistency across all transaction workflows.

Scalable Cloud-Based Payment Architecture

Scalable cloud-based payment architecture leverages distributed microservices and container orchestration to dynamically allocate resources and maintain consistent performance during peak transaction loads. The platform utilizes standardized RESTful APIs and supports interoperability with third-party financial systems through secure, versioned endpoints and modular infrastructure components.

Real-Time Transaction Monitoring Tools

Real-time transaction monitoring tools provide continuous oversight of all payment flows through advanced reporting dashboards and automated alerting systems. Integrated reconciliation frameworks enable precise tracking and validation of financial data, supporting operational accuracy and timely identification of anomalies within the payment gateway for merchants.

What Our Customers Say

Partnering with ConnectPay transformed our entire financial infrastructure and unlocked growth opportunities we couldn't achieve before. What impressed us most was how seamlessly the transition happened – over 15,000 users moved to individual IBAN accounts with 90% onboarding automatically in just seconds, all while maintaining complete front-end continuity.

— Laimonas Noreika, CEO at InSoil

We are glad to have worked with ConnectPay on our platform as they did their best to tailor their existing solutions to suit our needs and technical requirements. Despite challenging communication and tight deadlines towards the end of the project, together we managed to create a seamless and easy payment solution for the majority of our clients, which was one of our main goals and we consider it a great success.

— Indrė Dargytė, CEO at BeMyBond

Embedded lending services are all about user convenience. The whole idea is about creating opportunities for small and medium-sized merchants to access working capital through the platforms they already use in their business. Cooperation with ConnectPay is crucial in creating smooth processes and great customer experiences for both our partners and their business customers.

— Audrius Griškevičius, CEO and Co-Founder at Softloans

Solid foundation: performance you can trust

We're committed to our clients' success, turning promises into reliable outcomes.

Transactions per year, in 2025

1.9M

Annual payment turnover, in 2025

€ 3.6B

Operating in continents worldwide

Transactions processed via API

92%

Client funds held, in 2025

€ 75M

Average automated onboarding duration

Pan-European licensed

EEA

Years in the market

Learn More About Our Solutions

Online Payment Gateway

Card Acquiring Services

Business IBAN Accounts

Embedded Finance Solutions

Ecommerce Payment Solutions

Virtual and Physical Cards

White-Label Card Programs

Regulated Payment Infrastructure

Payment Gateway For Merchants FAQs

How does a payment gateway for merchants work?

ConnectPay securely processes your customers’ card payments online by encrypting sensitive data, authorizing transactions, and transferring funds directly to your business account, ensuring fast and reliable payment acceptance for your website or app.

Is it easy to connect my store to your system?

Yes, integrating your store is straightforward with our user-friendly setup and clear instructions. Our support team is also available to assist you throughout the process if needed.

How do you keep my customers’ payment data safe?

We comply with PCI DSS standards and use tokenization to prevent unauthorized access to sensitive information. Regular security audits and monitoring further protect your customers’ data throughout every transaction.

What are the fees for using your payment gateway for merchants?

Fees depend on your business type and transaction profile. For detailed pricing information, please visit our pricing page.

How is this different from other ways to accept payments?

Our solution offers customizable checkout experiences and seamless integration with multiple platforms, allowing you to tailor payment flows to your business needs while supporting a wide range of local and international payment methods.