Razorpay payment gateway integration services in India
We add Razorpay payments, UPI and subscriptions to your website, app or software, then test and support it so you can collect money with confidence.
“CoreBase Engineering is an official Razorpay technical partner team based in Noida. We integrate standard and custom Razorpay checkouts, dynamic UPI QR codes, recurring auto-debit subscriptions, and webhook reconciliation into websites, mobile apps, and custom business systems across India.”
Why sloppy payment integration costs you revenue
Amateur payment integrations cause dropped checkouts, unverified payments marked paid by mistake, missing webhooks, and painful reconciliation headaches.
Unverified Client-Side Callbacks
Relying on client-side browser callbacks without cryptographic server signature checks creates severe security loopholes and fraudulent orders.
Dropped Webhook Notifications
When customers close their browser before the thank-you screen loads, orders are lost unless robust webhook listeners are engineered.
Failed Subscription & UPI Auto-Debits
Integrating recurring e-Mandate and UPI subscriptions requires strict NPCI compliance and retry handling that standard plugins cannot provide.
What we integrate and build
Production-grade payment engineering backed by official Razorpay technical partnership.
Razorpay Standard & Custom Checkout
Embed seamless modal or inline payment checkouts supporting UPI (GPay, PhonePe, Paytm), Credit/Debit Cards, Net Banking, and Wallets.
Dynamic UPI QR Code Generation
Generate real-time UPI QR codes on invoice screens or checkout kiosks that automatically verify payment settlement upon scan.
Razorpay Subscriptions & Recurring e-Mandate
Set up automated recurring subscription billing on cards and UPI e-Mandate with automated dunning and failure notification retries.
Cryptographic Webhook Signature Verification
Every payment event is cryptographically verified on your server using SHA-256 HMAC signatures, ensuring zero spoofed transactions.
Automated ERP & CRM Payment Reconciliation
A successful payment updates order records, marks GST invoices paid, and provisions customer access automatically.
Razorpay Payment Links & Smart WhatsApp Triggers
Generate dynamic payment links via API and deliver them straight to your customer's WhatsApp or SMS with automated status tracking.
Why choose CoreBase for payment integration
We run high-volume payments in our own operating system every day.
Official Razorpay Technical Partner
Direct line to partner technical teams for expedited merchant onboarding, key issuance, and priority technical assistance.
Rigorous Test Mode & Failure Simulation
We test success, failure, timeout, and refund scenarios in sandbox test mode before touching live production money.
Complete Code & Keys Ownership
You retain 100% control of your Razorpay merchant account and API keys. We never hold client funds in escrow.
Who we build payment integrations for
How an integration project runs
Scope & Workflow Mapping
We review what you sell, customer payment preferences (one-time, recurring, UPI), and post-payment fulfillment logic.
Account Readiness & Sandbox Setup
We guide your Razorpay merchant account configuration and establish secure API sandbox keys in our staging environment.
Implementation & Cryptographic Testing
We code the checkout, server-side HMAC verification, and webhook listeners, rigorously simulating success and edge cases.
Go-Live & Post-Launch Support
We switch to live keys, perform a live ₹1 end-to-end verification test, provide technical documentation, and monitor launch.
Security & responsibilities: who does what
Card Data Security (PCI-DSS)
Card details are entered directly on Razorpay's PCI-DSS Level 1 compliant secure checkout. Sensitive card numbers never touch your server or ours.
Direct Merchant Settlement
All funds settle straight from Razorpay into your company bank account (T+1 or T+2 days). CoreBase charges only for engineering implementation.
Secure API Key Storage
API secrets are stored in encrypted environment variables with strict server-side access controls.
Common Questions About Fintech & Payments
Tell us how you want to collect payments
Let our official Razorpay partner team integrate reliable, secure payment collection into your business.