Hatton National Bank payment gateway
Card and online payment acceptance through HNB merchant solutions for local checkout.
API Integration Service
Part of our API Integration service
Payment Gateway Integration for Sri Lanka & International Commerce
We have integrated more than 50 payment gateways for clients in Sri Lanka and worldwide — connecting checkout, invoicing, subscriptions, and mobile apps to the banks and processors your customers trust.
50+ GatewaysSri Lanka & GlobalSecure APIsMulti-Platform
About payment gateway integration
Accepting payments online or in-app should feel seamless for your customers and straightforward for your team. C Soft Lanka Technologies delivers payment gateway integration as part of our API integration practice — wiring checkout flows, reconciliation, refunds, and webhook notifications into your existing software.
Our experience spans local Sri Lankan bank gateways and international processors, so whether you sell domestically, export services, or run a global storefront, we can connect the right payment rails to your platform.
Integration Experience
More Than 50 Payment Gateways Integrated
Over years of ecommerce, POS, and custom software projects, we have integrated more than 50 payment gateways — including Sri Lankan bank gateways and international providers — across web, mobile, and enterprise applications.
50+
Payment gateways integrated
Local
Sri Lankan bank & fintech gateways
Global
International cards, wallets & crypto
Secure
Tokenization, webhooks & reconciliation
Payment Gateway Integration Examples
A sample of local Sri Lankan and international gateways we have integrated. This is not an exhaustive list — we support many more processors through our API integration practice.
Sri Lanka
Local Payment Gateway Examples
Examples of Sri Lankan payment gateways we have integrated for retail, ecommerce, and service businesses.
Sampath Bank payment gateway
Integration with Sampath Bank payment APIs for secure domestic transactions.
Commercial Bank payment gateway
Commercial Bank merchant gateway connectivity for websites and business applications.
KOKO payment gateway
KOKO and modern fintech payment flows for flexible local customer payment options.
WEBXPAY payment gateway
WEBXPAY integration for Sri Lankan ecommerce and business checkout with local card acceptance.
OnePay payment gateway
OnePay payment gateway connectivity for online payments and merchant checkout in Sri Lanka.
International
International Payment Gateway Examples
Global gateways for businesses selling beyond Sri Lanka or serving international customers.
PayPal
PayPal checkout and subscription integration for global buyers and service payments.
eWay
eWay payment gateway integration for card processing and regional payment workflows.
Stripe
Stripe APIs for cards, subscriptions, invoicing, and developer-friendly payment flows.
Crypto payment gateway
Cryptocurrency payment gateway integration for digital asset checkout where permitted.
Technologies
Platforms We Build Payment Integrations On
We integrate payment gateways into the stacks your team already uses — or recommend the right architecture for a new product.
C# .NET
PHP
Laravel
JavaScript
React
React Native
WordPress
What We Deliver
End-to-End Payment Gateway Integration
Checkout & hosted payment pages
Embed gateways in custom checkout, redirect flows, or hosted payment pages with branded UX.
Webhooks & reconciliation
Capture payment status events, automate order updates, and reconcile settlements accurately.
Subscriptions & recurring billing
Support membership, SaaS, and installment models with recurring payment gateway APIs.
Refunds & partial captures
Handle refunds, voids, and partial payments without manual back-office work.
Mobile app payments
Integrate gateways into React Native and mobile web apps with secure token handling.
Sandbox testing & go-live support
Test in sandbox environments, validate edge cases, and support production cutover.
Questions About Payment Gateway Integration
Common questions about payment gateway integration. Need a tailored walkthrough? Contact our team.
We have integrated more than 50 payment gateways for clients in Sri Lanka and internationally — including local bank gateways and global processors such as PayPal, Stripe, eWay, and crypto payment solutions.
Examples include Hatton National Bank payment gateway, Sampath Bank payment gateway, Commercial Bank payment gateway, KOKO, WEBXPAY, and OnePay payment gateways. Contact us with your bank or processor name — we can confirm compatibility and integration approach.
We integrate PayPal, eWay, Stripe, and crypto payment gateways among others. We also connect regional and niche processors based on your customer geography and compliance requirements.
We build integrations on C# .NET, PHP, Laravel, JavaScript, React, React Native, and WordPress — as well as other frameworks when your project requires them.
Yes. Payment gateway integration is a core capability within our API Integration service. Visit our API Integration section on the Services page for the broader integration scope, or contact us directly for payment-specific projects.
Contact C Soft Lanka Technologies through our contact page or call (+94) 77 143 1054. Share your gateway, application type, and expected transaction volume, and we will recommend the right integration path.
Ready to Integrate Your Payment Gateway?
Tell us your gateway, platform, and checkout flow — we will outline integration scope, security considerations, and timeline.