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Scope, fee and working days are published on every engagement

CorePhysix Labs Technology lab

Practice 05 of 9

APIs & Integrations

Every manual re-key between two systems is an error waiting to reach a customer. These engagements connect systems properly — with retries, idempotency and a log to check when a message fails.

Practice readout

Engagements
5
Fee range
₹18,999 – ₹39,999
Duration
9–25 working days
Kickoff
Within 3 working days of your brief
Focus
APIs, payment gateways, ERP and messaging integrations
View the 5 engagements

API Working principle

Principle: failures should be visible, not silent

An integration is only complete when a failed call is retried safely, recorded clearly and easy for your team to investigate.

  • The fee and GST are shown on every engagement page
  • Deliverables and required inputs are listed before you order
  • Repositories, cloud accounts and licences remain in your name

05 Engagements

5 engagements in APIs & Integrations

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.

End-to-end integration for UPI, cards, netbanking and wallets

Fixed fee · GST incl.

₹24,999

Duration

14 working days

WhatsApp Business API Integration

The official WhatsApp Business API connected to your application for order updates, reminders and replies, with delivery status tracked.

WhatsApp Business API account set up, including business verification

Fixed fee · GST incl.

₹22,999

Duration

15 working days

Legacy SOAP to REST Gateway

A REST gateway in front of a SOAP or mainframe system, so new products work with a clean API and old constraints stop spreading.

REST gateway service that translates calls for SOAP, XML or fixed-width backends

Fixed fee · GST incl.

₹34,999

Duration

20 working days

ERP to Web Application Sync

A sync service between your ERP and web application, with conflict rules and an audit log, so stock, orders and records stay in agreement.

Sync service linking your ERP and web application, one-way or two-way as scoped

Fixed fee · GST incl.

₹39,999

Duration

25 working days

Next step

Have a system that needs building, fixing or securing?