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CorePhysix Labs Technology lab

Specification API·102

API · APIs & Integrations Defined scope Fixed fee

Razorpay Payments Integration

Razorpay or Cashfree payments for UPI, cards and netbanking, with verified webhooks and daily reconciliation that keep every paid order accounted for.

Fee · GST incl.
₹24,999
Duration
14 working days
Deliverables
7

01 Overview

Collecting a payment is rarely where things go wrong. The trouble comes afterwards: a webhook delivered twice, a UPI collect request approved ten minutes late, a refund that never reaches your books. We integrate Razorpay or Cashfree with idempotent order creation, signature-checked webhooks and a daily job that reconciles gateway settlements against your own records. Failed payments retry without dropping the order, and subscriptions or mandates are configured where your billing needs them.

02 Deliverables

7 items

What you receive at handover

  1. D01 End-to-end integration for UPI, cards, netbanking and wallets
  2. D02 Idempotent order creation that withstands duplicate submissions
  3. D03 Webhook handling with signature verification, retries and safe replay
  4. D04 Full and partial refund flows linked to your admin tools
  5. D05 Daily reconciliation job matching gateway settlements to your records
  6. D06 Subscription or mandate configuration where recurring billing applies
  7. D07 Sandbox test plan that includes deliberately forced failure cases

03 Outcomes

What should be true once it ships

  • Repeated webhooks no longer produce duplicate orders
  • Finance works from a daily reconciliation instead of rebuilding the month at close
  • Late UPI confirmations complete the order rather than dropping it

04 Process

How the 4 stages run

  1. Scope We confirm payment methods, currencies and refund rules
  2. Build The integration is developed in the sandbox with failure cases forced
  3. Reconcile Settlement matching and reporting are connected to your ledger
  4. Go live Production keys are deployed and we watch the first live transactions with you

05 Fit & inputs

A good fit for

  • Businesses replacing payment links with an integrated checkout
  • Products where failed payments are quietly losing revenue
  • Finance teams matching gateway settlements by hand every month

What we need from you

  • A gateway account with KYC complete, and both sandbox and live keys
  • Your refund policy, GST treatment and invoice numbering rules
  • An engineer or administrator able to deploy to production on go-live day

These inputs are collected through the technical brief in your dashboard after payment. The duration is counted from when they arrive.

06 Answers

Questions about this engagement

We connect the integration to your invoicing logic and can generate compliant invoice numbers. Tax advice stays with your accountant.

Yes, if your gateway account is enabled for them. We configure that path and test it.

Yes. Migrations, including stored mandates, are planned so that recurring customers are not interrupted.

This is technology work delivered digitally — nothing is shipped. Work is delivered into systems you control within the duration stated above, and the delivery and refund policies set out what happens if a date is missed.

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Next step

Have a system that needs building, fixing or securing?