Payment Gateway Integration That Collects Revenue Reliably
We integrate Razorpay, Stripe, PayPal, PayU, CCAvenue, PayTM, Mobikwik, Authorize.net, and Skrill into your web and mobile apps — with checkout flows, UPI and card payments, subscription billing, refunds, webhook handling, and marketplace split settlements built for India and global markets.
Checkout
UPI, Cards & Netbanking
Subscriptions
Recurring & Auto-Debit
Webhooks
Refunds & Reconciliation
From Gateway Selection to Production-Ready Checkout
Choosing the right payment gateway is only half the work — the integration must handle edge cases, failed transactions, subscription renewals, and refund reconciliation without manual intervention. XtremeDevelop connects your platform to leading payment providers with flows tuned for conversion and compliance.
Whether you need a single gateway for India-first UPI and card payments or a multi-gateway setup with failover for international customers, we design the architecture, implement secure checkout, and wire webhooks so your finance team always has accurate payment status.
What You Receive
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Integrated Checkout
Hosted or embedded checkout with UPI, cards, netbanking, wallets, and international payment methods configured per gateway.
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Webhook & Event Pipeline
Reliable webhook handlers for payment success, failure, refund, and subscription events with idempotency and retry logic.
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Reconciliation Reports
Admin dashboards and exportable logs that align gateway settlements with your order and subscription records.
Core Payment Integration Capabilities
End-to-end payment workflows for e-commerce, SaaS, marketplaces, and enterprise billing.
Checkout Flows
One-page and multi-step checkout with cart summary, promo codes, saved payment methods, and mobile-optimized payment screens.
UPI, Cards & Netbanking
Full support for India-first payment modes — UPI intent and collect, debit/credit cards, netbanking, and wallet top-ups via Razorpay, PayU, and CCAvenue.
Subscriptions & Recurring
Plan creation, trial periods, auto-renewal, dunning for failed charges, and upgrade/downgrade flows via Stripe, Razorpay Subscriptions, or PayPal Billing.
Refunds & Reconciliation
Partial and full refunds, chargeback handling, settlement reports, and automated matching of gateway payouts to internal order ledgers.
Webhook Handling
Secure webhook endpoints with signature verification, event queuing, dead-letter handling, and real-time order status updates across your stack.
Multi-Gateway Failover
Route transactions across multiple gateways by region, currency, or availability — with automatic fallback when a provider is down or rate-limited.
Marketplace Split Payments
Vendor payouts, commission splits, escrow holds, and scheduled settlements for multi-seller platforms using Razorpay Route, Stripe Connect, or PayPal Payouts.
PCI-Aware Practices
Tokenized card handling, hosted payment pages, and architecture that keeps sensitive card data off your servers while meeting PCI DSS guidance.
Global Gateway Support
Stripe, PayPal, Authorize.net, and Skrill for international cards, multi-currency billing, and cross-border subscription management.
Gateways & Integration Stack
Production-tested integrations with leading payment providers in India and worldwide.
Our 4-Step Payment Integration Process
Structured delivery from gateway selection to live transactions.
Discovery & Gateway Fit
Business model, regions, payment modes, subscription needs, and compliance requirements — mapped to the right gateway mix.
Architecture & Sandbox
Checkout UX, webhook design, and sandbox integration with test transactions across all required payment methods.
Build & Test
Production integration with refunds, subscriptions, split settlements, and edge-case handling — validated in staging.
Go-Live & Monitor
Production cutover, webhook monitoring, reconciliation setup, and documentation for your finance and support teams.
Why Partner With XtremeDevelop
Payment integrations built by engineers who understand production billing at scale.
Battle-Tested Edge Cases
We handle failed payments, duplicate webhooks, partial refunds, and subscription proration — not just the happy path.
Full-Stack Integration
Checkout UI, backend APIs, admin dashboards, and webhook pipelines — delivered as one cohesive payment system.
India & Global Ready
Deep experience with India-first gateways and international providers — so you can scale across markets without rewrites.
Related Services
Complete your commerce stack with shipping, APIs, and web platforms.
Shipping Integration
Connect courier APIs for rates, labels, and tracking alongside your payment checkout.
Third-Party API Integration
WhatsApp, KYC, GST verification, and other business APIs wired into your payment flows.
Web Development
E-commerce and SaaS platforms built to host secure, conversion-optimized checkout experiences.
Ready to Accept Payments Online?
Tell us your gateway preferences, payment modes, and billing model — we will propose architecture, timeline, and integration scope.