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API Integration

API integration so your systems stop disagreeing

API integration in Chennai. We connect your website, CRM, accounting, inventory and logistics systems so data moves once, automatically, and stops disagreeing.

Typical timeline
2 to 10 weeks
Indicative range
₹45,000 to ₹4,00,000
Network cables terminating in a patch panel

What you get

The outcome you are actually buying.

  • Data entered once instead of three times
  • One system that is authoritative for each field, agreed in writing
  • Failures that retry, queue and then alert a person
  • An integration map showing how everything actually connects
  • A runbook your team can follow without calling us

What is included

Specific deliverables, agreed in writing before anything starts.

  • Integration map showing every system and data flow
  • Connectors built, authenticated and rate limit aware
  • Field mapping and transformation rules documented
  • Retry, queueing and failure handling
  • Monitoring with alerts when a sync fails
  • Runbook for your team

How we work

You see progress every week on a URL you can open, not a demo at the end.

  1. 01

    Map

    Every system, every field and every direction of flow. This document is usually the first time anyone has seen the whole picture on one page.

  2. 02

    Decide the system of record

    Per field, in writing. Which system wins is a business decision rather than a technical one, so we settle it before building.

  3. 03

    Build

    Authentication, rate limits, pagination, transformation and validation, with idempotency so a retry cannot create a duplicate.

  4. 04

    Run in parallel

    The integration runs alongside the manual process until the two agree, which is how you find the edge cases safely.

  5. 05

    Monitor

    Dashboards, alerting on failure, and a runbook covering what to do when a third party goes down.

The problem

A typical business runs a website, an accounting package, a CRM, a spreadsheet and a courier portal. None of them speak to each other, so a person moves data between them by hand. That person is slow, occasionally wrong, and on leave next week.

Worse, each system slowly develops its own version of the truth. The CRM says one address, accounting says another, and nobody knows which to trust.

What we build instead

Connections that move data once, automatically, with a clear rule about which system is authoritative for each field. If the CRM owns the phone number, the CRM owns it everywhere, and the others follow.

Failures are handled openly. Retries with backoff, a queue that survives an outage, and an alert to a human when something has genuinely stopped. You should never discover a broken sync by noticing the numbers look odd.

How we work

  1. Map. Every system, every field, every direction of flow. This document is usually the first time anyone has seen the whole picture.
  2. Decide the system of record. Per field, in writing. This is where the real arguments happen and it is worth having them early.
  3. Build. Authentication, rate limits, pagination, transformation and validation.
  4. Prove it. Run against real data in parallel with the manual process until the two agree.
  5. Monitor. Dashboards and alerts, plus a runbook for your team.

Who this is for

Businesses running three or more systems where somebody is currently the bridge between them.

The hidden cost of manual bridging

In most businesses one person moves data between systems by hand. It looks inexpensive because it is nobody's whole job, but it is slow, it is intermittently wrong, and it stops entirely when that person is on leave.

The second cost is worse. Each system gradually develops its own version of the truth, and nobody can say which to trust. Decisions then get made on whichever figure is nearest to hand.

Deciding what wins

The hardest part of integration is not technical, it is agreeing which system is authoritative for each field. If the CRM owns the phone number, it owns it everywhere and the others follow.

We run that decision as a workshop and record it, because it is where the real disagreements live and because an undocumented rule gets quietly reversed six months later.

Failure handling that does not lie to you

Integrations fail. Third party APIs go down, credentials expire, rate limits tighten without notice.

Ours retry with backoff, then queue so nothing is lost during an outage, then alert a human when something has genuinely stopped. Silent failure is the worst possible outcome, because you keep trusting data that stopped updating a week ago.

Every write is idempotent, so a retry cannot produce a duplicate invoice or a second order.

When there is no API

Plenty of business software in India predates the idea of an API. We work with scheduled file exports, direct database replication where it is safe, or as a last resort a controlled automation of the interface.

We are honest about how fragile each option is and what will break it, so you can choose with your eyes open rather than discovering it later.

Common integrations we build

Website enquiries into a CRM with the source attached. Orders into accounting. Stock levels between warehouse and storefront. Payments reconciled against invoices. Shipping labels out and tracking back to the customer. WhatsApp conversations into the sales pipeline. Attendance and payroll. Purchase orders into inventory.

Proving it before you rely on it

New integrations run in parallel with the existing manual process until the two agree consistently. That period is where the awkward records surface: the customer with two accounts, the order placed in a different currency, the address with no pincode.

Switching off the manual process early is how integrations acquire a reputation for being unreliable. We do not rush it.

Documentation and handover

You get the integration map, the field level mapping, the credentials inventory and a runbook covering the failures we expect and what to do about each. Your team should be able to diagnose a stalled sync without calling anyone.

What we build with

Chosen per project rather than by habit. We will tell you when a simpler option would serve you better.

  • REST
  • GraphQL
  • Webhooks
  • Laravel
  • Node.js
  • Zoho
  • Tally
  • Razorpay
  • Shiprocket

Who this is for

  • Businesses running three or more systems with a person acting as the bridge
  • Companies whose CRM, accounts and website disagree about the same customer
  • Teams whose month end involves substantial manual reconciliation

When this is not the answer. If two systems each have a good native integration with the other, use it. We will point you at it rather than billing to rebuild it.

Questions

Before you ask us

Anything not covered here, send it through the form and you will get a straight answer.

Anything with an API, and several things without one. We have connected Tally, Zoho, Razorpay, Shiprocket, Google Sheets, WhatsApp, Salesforce and a long list of custom systems. If there is no API we look at scheduled exports or database level sync.

Start a project

Tell us what you need.

A reply within one working day from someone who can answer, not an acknowledgement and silence.

What happens next

  1. 1We read it and reply within one working day, usually sooner.
  2. 2A short call to understand the problem. No charge and no sales sequence.
  3. 3If we are a fit, a written scope and a fixed price before any work starts.

Enquire about API Integration

Name and number are all we genuinely need. The rest helps us come back with something useful.

We usually reply on WhatsApp first.

We reply within one working day. No sales sequence.