Payment Gateway Integration
Secure integration of Stripe, PayPal, Razorpay, Authorize.Net, Square and regional gateways into your website, app or portal, engineered around your actual checkout flow.
Payment Integration
Payment Gateway Integration Services
Every checkout, subscription and payout your business runs is engineered by WebNX Global Services' payments team, hands-on since 2008. Stripe, PayPal, Razorpay, subscriptions, multi-currency and split payments, all PCI compliant, for businesses across the US, UK, Canada and India.
- 18+ Years Experience
- PCI Compliant
- Subscriptions
- Multi-currency
Where payments break down
Is your payment setup costing you revenue?
Payments are where the sale actually happens. If any of these sound familiar, you are losing money at the most important moment, and it is fixable.
06 failure points we design out of every integration
- 01
Every abandoned cart started at your checkout
The payment step is where trust gets tested, and carts either convert or vanish right there. A slow, unfamiliar or clunky checkout is costing you sales you already won everywhere else on the site.
- 02
One country's checkout, five countries' customers
Cards, wallets, bank transfers, buy-now-pay-later, expectations shift by region. Missing the methods your customers actually reach for loses them at the final step, not the first.
- 03
PCI compliance handled as an afterthought
Letting raw card data anywhere near your servers turns them into a liability. Built correctly, sensitive data never reaches them, so compliance is designed in rather than bolted on later.
- 04
Revenue quietly draining through failed payments
Declined cards, missed retries and silent webhook failures lose money nobody notices until the numbers stop adding up. Handled properly, most of it is recovered automatically.
- 05
Recurring billing running on guesswork
Proration, upgrades, trials, dunning and invoicing multiply fast once you have real subscribers. Get any piece wrong and revenue leaks out one missed renewal at a time.
- 06
Payment data stuck outside your business systems
When payments do not sync to accounting, ERP or order records, someone reconciles it by hand every month. Wired in correctly, the money trail updates itself.
Who we work with
Industries we serve
We integrate payments for ecommerce, SaaS, marketplaces and any business that takes money online. We learn your model before we build.
Ecommerce
SaaS
Marketplaces
B2B & Wholesale
Education
Healthcare
Travel & Booking
Subscriptions
Nonprofits
Property & Rentals
What we build
Our payment integration services
From a single secure checkout to subscriptions, split payments and global methods, every integration is built secure, compliant and conversion-focused.
Subscription & Recurring Billing
Plans, trials, proration, upgrades and dunning built on Stripe Billing or similar, backed by a self-serve customer portal that keeps revenue moving without manual chasing.
Multi-currency & Global Payments
Local currencies, local pricing and local methods, so customers in every market you serve check out in something that feels native, not foreign.
Checkout Optimization
A fast, trusted checkout with the right methods, wallets and one-click options in the right order, built to lift conversion at the exact moment it matters most.
Marketplace Split Payments
Stripe Connect and similar tooling to split one payment across multiple vendors, deduct commission automatically and send compliant payouts without manual intervention.
Digital Wallets
Apple Pay, Google Pay and Shop Pay wired in for the one-tap mobile checkout shoppers now expect as standard, not as a bonus feature.
Buy Now, Pay Later
Klarna, Afterpay and Affirm integrated cleanly to lift average order value and convert price-sensitive buyers who would otherwise abandon at checkout.
PCI-compliant Architecture
Tokenization and hosted fields keep card data off your servers entirely, holding you to the simplest PCI scope with far less security burden on your team.
Fraud Prevention & 3D Secure
Risk rules, address verification and 3D Secure (SCA) tuned to stop fraud and cut chargebacks without adding friction for the customers who are genuinely yours.
Payment Data Integration
Payments, refunds and payouts synced automatically into your accounting, ERP and order systems, so reconciliation stops being a monthly manual task.
Custom Payment Flows
Deposits, instalments, pre-authorizations, saved cards and any payment logic specific to how your business actually sells.
Migration & Support
Zero-downtime migration between gateways with subscriptions and saved cards preserved, plus ongoing monitoring once you are live.
Why choose us
Payment integration done the right way
Payments are where security, compliance and conversion all meet, and where small mistakes cost real money. We get the hard edges right and stay around to monitor them. These are the standards behind every integration we ship.
Start your project-
Security and compliance first
Tokenization and hosted fields keep card data off your servers from day one, so PCI compliance is a byproduct of the build, not a separate project bolted on after.
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We handle the hard edge cases
Failed payments, retries, webhooks, refunds, disputes and SCA are exactly where money quietly leaks. We build for these cases first, not last.
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AI-driven speed, human-reviewed quality
AI-assisted tooling speeds up routine integration work, and every payment flow still passes through an experienced engineer's review before it ever touches real money.
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Gateway-agnostic advice
We work across Stripe, PayPal, Razorpay, Adyen and more, and recommend whichever fits your region, fees and customers, not whichever we prefer.
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Subscription billing expertise
Recurring revenue is genuinely hard to get right. We build plans, proration, trials, dunning and portals that keep it flowing without constant manual intervention.
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Conversion-focused
We treat the payment step as a conversion opportunity, not a formality: the right methods, wallets and flow, in the right order, at the right moment.
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Connected to your systems
Payments, refunds and payouts sync into your accounting and ERP automatically, so your finance team stops reconciling transactions by hand.
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Since 2008, still hands-on
Building software since 2008 payment systems for startups, SMEs and enterprises across the US, UK, Canada and India. Most support issues are resolved overnight your time.
How we work
Our payment integration process
Eight clear stages, with security and compliance designed in from the start and every edge case tested before go-live.
- 01
Discovery
We map your customers, regions, payment methods and compliance obligations before recommending anything.
- 02
Gateway Choice
The right gateway and methods chosen for your fees, region and regulatory requirements, not the most familiar name.
- 03
Architecture
Secure, PCI-compliant data flow designed up front, so compliance is structural rather than patched in later.
- 04
Integration
Gateway, checkout, webhooks and tokenized flows built and wired in, with AI-assisted tooling speeding up routine work without cutting corners on review.
- 05
Systems Sync
Payments, refunds and payouts connected to your accounting and ERP so the money trail updates itself.
- 06
Testing
Test cards, failure scenarios, refunds, SCA and edge cases verified thoroughly before anything goes near a real customer.
- 07
Go Live
A monitored launch with live-payment verification and a rollback plan ready in case anything needs it.
- 08
Monitor
Ongoing monitoring of failures, disputes and gateway health, so problems get caught before they cost you revenue.
What is included
A basic checkout is not a payment system
Dropping in a payment button is easy. Handling the security, failures and edge cases that protect revenue is the real work. Here is what we build in.
What you get Basic setup WebNX
PCI-compliant tokenized integration
Failed payment & retry handling
Webhook & event handling
Subscription & recurring billing
Multi-currency & local methods
3D Secure (SCA) & fraud screening
Accounting / ERP sync
Basic single-gateway setup
Standard card checkout
Ongoing monitoring & support
Client words
Trusted with the most important step
They rebuilt our Stripe subscription billing with proper dunning and a real customer portal. Failed-payment recovery alone lifted our monthly revenue, and we stopped losing customers who never actually meant to churn.
Adding Apple Pay, Klarna and proper multi-currency checkout moved our conversion rate noticeably. The integration was clean, and we have not had a single PCI headache since they took it over.
Our Stripe Connect split-payment setup now handles payouts to hundreds of vendors without us thinking about it. Refunds, disputes, partial payouts, they got every edge case right, and our finance team got hours back every week.
Built with proven tools
Payment providers we integrate
We work across the major gateways, wallets and BNPL providers, and recommend the right mix for your business.
- Stripe
- PayPal
- Razorpay
- Square
- Adyen
- Authorize.Net
- Stripe Connect
- Apple Pay
- Google Pay
- Klarna
- Afterpay
- 3D Secure
Questions, answered
Payment integration FAQs
How much does payment integration cost?
Payment integration typically ranges from ₹25,000 to ₹2,00,000+, depending on the gateway, checkout flow and requirements. Subscriptions, multi-currency and split payments add complexity. Every quote is scoped and itemized before work begins.
Which payment gateway should I use?
It depends on your region, fees, payment methods and features. Stripe suits most online businesses and subscriptions, PayPal adds reach and trust, Razorpay fits India, Adyen fits global enterprise. We recommend based on your customers and costs, not by defaulting to one.
How do you handle PCI compliance?
We integrate using tokenization and hosted payment fields, so card data goes directly to the gateway and never touches your servers. That keeps you in the simplest PCI scope and cuts your security burden dramatically.
Can you set up subscription and recurring billing?
Yes. We build recurring billing with plans, trials, proration, upgrades and downgrades, failed-payment dunning and a customer portal, typically on Stripe Billing, so revenue keeps flowing with minimal manual work.
Can you add multiple currencies and local payment methods?
Yes. We set up multi-currency pricing and presentment plus local payment methods, wallets and bank transfers, so international customers pay in what feels native to them, which lifts conversion.
Can you integrate digital wallets and BNPL?
Yes. We integrate Apple Pay, Google Pay and Shop Pay for fast wallet checkout, and Klarna, Afterpay and Affirm for buy-now-pay-later, both of which improve conversion and average order value.
Can you build split payments for a marketplace?
Yes. Using Stripe Connect or similar, we split a single customer payment across multiple vendors, deduct your commission and automate compliant payouts, with full handling of refunds and disputes.
How do you handle failed payments?
We implement smart retries, dunning emails, card-update flows and webhook handling so failed payments are recovered automatically wherever possible. For subscriptions, this directly protects recurring revenue.
Do you handle 3D Secure and fraud prevention?
Yes. We implement 3D Secure (SCA) where required, plus fraud screening, address verification and risk rules tuned to block fraudulent transactions and reduce chargebacks without adding friction for genuine buyers.
Can payments sync with our accounting or ERP?
Yes. We sync payments, refunds and payouts into your accounting, ERP or order management systems so reconciliation is automatic and your finance team is not matching transactions by hand.
Can you migrate us between payment gateways?
Yes. We migrate between gateways carefully, including moving saved cards and active subscriptions where the providers support it, with no downtime and no lost recurring revenue.
Do you provide ongoing payment support?
Yes. Payment stacks need monitoring for failures, disputes and gateway changes. Most clients keep us on to watch payment health, handle issues and add methods as they expand, backed by 18+ years of doing this since 2008.
Ready to fix the most important step?
Tell us how you take payments and where customers drop off. We will tell you the right setup, the realistic cost and timeline, usually within one business day.