Build · APIs & Backend
API Integrations & Backend Development
We connect your website and software to the services your business relies on — payment gateways, WhatsApp, CRMs, Tally, Google Workspace, shipping and government APIs — and build the backend that ties them together. Integrations are logged, retried on failure and documented, so data does not silently go missing.
Last updated
- Typical timeline
- 1–4 weeks per integration set
- Starting from
- On quote
- Tech stack
- Node.jsTypeScriptPostgreSQLRedisRazorpayWhatsApp Cloud APIn8n
// who it's for
Who is apis & backend for?
- Businesses copying data by hand between systems
- Stores and apps that need payment, shipping or SMS integrations
- Companies with a legacy system that needs a modern API
- Teams building automations that need a custom backend step
// deliverables
What you get
Payment gateways
Razorpay, Cashfree, PayU, Stripe — including webhooks, refunds and reconciliation.
Business systems
Tally, Zoho, HubSpot, Google Sheets and Workspace integrations.
Messaging
WhatsApp Business API, SMS (DLT-compliant) and transactional email.
Custom APIs
REST or GraphQL APIs with authentication, rate limits and documentation.
Reliability
Queues, retries, error alerts and logs so failures are caught.
Data sync
Scheduled syncs and real-time webhooks between systems.
// process
How the project runs
Typical timeline: 1–4 weeks per integration set.
- step 01
Map the data
What moves where, when and who owns it.
- step 02
Check APIs
Confirm access, limits and edge cases with each provider.
- step 03
Build & log
Integration built with logging, retries and alerts.
- step 04
Test with real cases
Including failures, refunds and duplicates.
- step 05
Document & monitor
Runbook handed over and monitoring switched on.
// work
Related projects
We are adding detailed case studies here. Ask us on a call and we will walk you through live projects similar to yours.
Ask for examples// FAQ
APIs & Backend: common questions
What is an API integration?
It is a connection that lets two pieces of software exchange data automatically — for example, a new order on your website creating an invoice in Tally and a shipment in Shiprocket, with no manual copying.
Can you integrate with Tally?
Usually yes. Depending on your Tally version and setup we use Tally’s XML interface, a connector service or scheduled imports. We confirm the right approach after seeing your setup.
Should I use n8n/Zapier or custom code?
Use no-code tools when the flow is simple and volumes are modest. Use custom code when you need complex logic, high volumes, strict security or lower running costs. We often combine both.
What happens if an integration fails?
We build retries for temporary errors and alerts for permanent ones, and log every transaction so we can see exactly what happened and fix it.
Do you build APIs for mobile apps?
Yes. We build secure, documented APIs that power web and mobile apps, with authentication and rate limiting.
Is DLT registration needed for SMS?
Yes, in India business SMS must be sent through DLT-registered headers and templates. We help with the setup and integrate with your SMS provider.
// related
Related services
Web Apps & Dashboards
Portals, CRMs, booking systems and dashboards built around how you actually work.
Process Automation
n8n, Make and Zapier workflows that remove copy-paste work across your tools.
WhatsApp Automation
Official WhatsApp API with instant replies, reminders, order updates and team inbox.
CRM & Lead Flow
Every lead source in one CRM, assigned in seconds, with automatic follow-ups.
// next step
Planning apis & backend? Let's scope it.
Get a fixed, written quote within one working day. No obligation, no sales pressure — just a clear plan and price.