Server-side order creation
Create provider orders securely without exposing secret credentials in browser code.
Online payment integration services
Payment workflows built beyond the checkout button.
Kailvex integrates supported payment gateways with server-side order handling, verification, callbacks and practical status management for websites, apps and custom systems.
India-wide deliveryClear project scopeSupport after launch
Business-focused planningResponsive experiencePerformance considered earlyMaintainable implementation
What we deliver
A payment integration that remains understandable after the transaction.
The implementation connects the customer action to the business record, confirmation, status and exception handling required behind the scenes.
Checkout integration
Connect the payment interface to the correct customer, amount and business transaction.
Signature verification
Validate supported payment responses before treating an order as paid.
Webhook processing
Handle asynchronous provider events and update payment status reliably.
Failure and retry flows
Show useful customer messages while preserving failed or pending transaction context.
Refund and reconciliation support
Plan provider-supported refunds, reference IDs and administrative visibility where required.
Business outcome
Keep payment status connected to the actual business order.
A reliable payment flow reduces uncertainty for the customer and gives the business a clearer record of what happened.
EcommerceAppointmentsSubscriptionsEducationServicesMobile appsBooking platformsCustom software
Safer credential handling
Provider secrets remain on the server and are not exposed in frontend JavaScript.
Accurate transaction records
Payment identifiers and status are linked to the correct order or service request.
Clear customer messaging
Success, failure, pending and retry states are communicated appropriately.
Operational visibility
Administrators can review payment context and take the next supported action.
Delivery process
A practical route from requirement to release.
Every project is shaped around scope, users, integrations and the operational reality after launch.
Provider and flow review
Confirm gateway support, account readiness, currency and transaction model.
Order architecture
Define the relationship between business records and provider transactions.
Secure integration
Implement checkout, verification, callbacks and status updates.
Sandbox and production testing
Validate test cases, production keys and deployment behaviour.
Frequently asked
Questions businesses ask before starting.
Kailvex works with supported providers such as Razorpay, Stripe, PhonePe and other gateways based on documentation, account approval and the project environment.
Yes. The client is responsible for provider registration, KYC, approvals, charges and policy compliance.
No. Transaction fees, account charges and provider costs are paid directly by the client to the gateway provider.
Yes, subject to the website technology, code access, existing checkout flow and provider compatibility.
Supported sandbox or test environments are used first, followed by controlled production verification after the client provides approved live credentials.
Start with clarity
Need payments connected cleanly to your orders, bookings or application?
Share the current challenge, expected outcome and timeline. Kailvex will respond with the practical next step.
Kailvex India
A reliable software development partner for practical business outcomes.
Kailvex Technologies combines public project proof, clear scope, maintainable development and post-launch support for businesses across India.