Workflow Automation

API Integration Services

Make the systems you already pay for talk to each other.

Typical timeline: 1-4 weeks per integration
Category: Workflow Automation
Engagement: Fixed-scope phases
You receive: Code, data & documentation

Most businesses already own capable software; the cost is in the gaps between those systems, which staff bridge by hand. Integration closes those gaps so data moves once, automatically, and stays consistent everywhere.

The problem

Your software does not talk, so your staff do the talking

An order is entered in one system, stock updated in another, an invoice typed into accounting, and a tracking number copied to a courier portal. Each step is a chance to introduce an error, and together they account for a surprising share of the working day.

You will recognise this if

The same data is keyed into two or more systems
Figures in different systems disagree and reconciliation is a regular task
Reports require exporting from several places and combining them manually
You pay for good software but still work mostly in spreadsheets

What you get out of it

The difference this makes

Enter data once

Information flows between systems automatically, which removes both the duplicate typing and the errors it introduces.

Systems that agree

One authoritative source per data type, synchronised outward, so reconciliation stops being a routine task.

More value from existing licences

Connecting what you already own is usually far cheaper than replacing it with a single platform that does everything adequately.

Failures that are visible

Monitoring, retries and alerts mean a broken sync raises a flag immediately instead of being discovered weeks later.

What we build

Integration design: data flow mapping, authoritative source per field, conflict rules
Two-way or one-way synchronisation as the situation requires
Webhook and scheduled polling integrations
Field mapping and transformation between differing data models
Retry with backoff, dead-letter queues and idempotent writes to prevent duplicates
Monitoring with alerting on failures and sync lag
Rate limit handling and credential rotation
Documentation of every integration and its failure modes

How it gets used

An online store and accounting software

Orders create invoices in accounting automatically, payments reconcile back to orders, and stock levels stay aligned across both.

A CRM and a marketing platform

Leads, campaign membership and deal outcomes sync both ways, so marketing sees which campaigns produced revenue rather than clicks.

A logistics integration

Shipments are created with couriers from the order system and tracking updates flow back to the customer automatically.

Technology we typically use

You do not need to care about this list — but your next developer will.

Python with FastAPI
n8n
PostgreSQL
Redis queues
Webhooks
OAuth 2.0

Timeline: Typically 1-4 weeks per integration

Questions

API Integration Services — common questions

Something else on your mind? Ask us directly — it is usually faster than reading.

What if our software has no API?

There are usually fallbacks: scheduled file import and export, database reads where the vendor permits it, or email-based data exchange. These are less elegant and need more error handling, but they often work. Where nothing is viable, we will say so rather than build something fragile.

What happens if an integration breaks?

Failures are retried with backoff, persistent failures raise an alert, and affected records are queued rather than dropped. Nothing is silently lost, and you find out from a notification rather than from a customer.

Can you integrate with Tally?

Yes, commonly, through Tally's XML interface or ODBC connectivity. The exact approach depends on your version and whether it runs locally or on a server, which we confirm during discovery.

Businesses that need this often need one of these as well.

n8n Workflow DevelopmentAutomations you own, running on your own infrastructure.REST API DevelopmentWell-designed, documented APIs that other systems can rely on.Data Pipeline DevelopmentMove data between systems reliably, on schedule, without manual steps.AI Business Process AutomationAutomate the processes that defeated rule-based tools.

Thinking about api integration services?

Tell us about your situation. We will tell you whether this is the right service, what it would involve, and roughly what it would cost.

Get a free consultation