Service

API Development & Integration Melbourne
so your systems stop waiting on people.

API development Melbourne businesses lean on when double entry, fragile connectors and reporting lag are costing real hours. We build custom APIs and middleware that keep data moving between accounting, CRM, e-commerce and operations.

REST endpoints, webhooks and the API integration Melbourne teams can hand to the next developer. Fixed-price scope, an Australian team, and support once it is live.

  • AU-team API development team
  • 18+ yrs Building APIs & integrations
  • 40+ Platforms integrated
  • Fixed Price scopes, no surprises
Australian owned and operated

Built here. Your data stays here.

  • No offshore development. Everything is written by our own team in Australia. Nothing is subcontracted overseas.
  • Your data stays onshore. Hosted in Australia, on infrastructure you own, under Australian law.
  • Every state, not just ours. Perth, Melbourne, Sydney, Brisbane, Adelaide and everywhere between.
API Developers Melbourne

Stop copying data from one system to the next

In a Melbourne professional services firm, the same client is usually typed in three times: once in the CRM when the deal is won, once in Xero when the first invoice goes out, and once more in the client portal so the client can see their project. Every copy drifts a little further from the others.

We build the APIs and integrations that make one of those systems the source and let the others follow. A new client in HubSpot becomes a Xero contact. A paid invoice in Xero shows as paid in the portal. Nobody retypes anything.

You deal with the developers doing the work, and the scope and fixed price are agreed before anything is built.

Sound Familiar?

Where Melbourne teams are still typing things twice

These are the conversations we have every week.

The same client typed into three systems

A deal closes in the CRM, then someone creates the client again in Xero, then again in the client portal. Spelling and addresses drift, and nobody is sure which version is right.

Billable time that never reaches an invoice

Hours sit in a project or timesheet tool until someone exports them at month end. Anything missed in that export is time the firm worked and never billed.

A client portal nobody trusts

Clients log in to check an invoice or a project stage, and see last week. So they email or call instead, and the portal saves no one any time.

API Development Melbourne

Show us where data is breaking down

Tell us which systems hold your clients, your hours and your invoices, and where they get typed twice. We will come back with the simplest way to connect them and a fixed price.

What We Build

Your systems, finally sharing the same data

The API and integration work Melbourne firms ask us for most, from client portals to CRM and Xero sync.

Custom REST API development

When your portal, a partner or a mobile app needs data from your business, we build a REST API for it in Laravel, Node.js, .NET or Python. Clients see their own projects, invoices and documents, and nothing that belongs to anyone else.

Each API ships with OpenAPI documentation, so a future developer, or your client's IT team, can see exactly what it does. Access is controlled with OAuth 2.0, API keys or signed tokens, depending on who is calling.

Third-party system integration

The typical Melbourne firm we work with runs a CRM such as HubSpot or Salesforce, Xero or MYOB for accounts, and a project or practice tool in between. We connect them so a client, a matter or a job exists once and is shared.

We decide with you which system owns each piece of data. The CRM owns the contact, the accounting system owns the invoice, the project tool owns the hours. That one decision stops most sync conflicts before they start.

Webhook development and event-driven integrations

Webhooks let one system tell another the moment something happens. When a deal is marked won in HubSpot, the client is created in Xero. When an invoice is paid, the portal updates straight away.

Every webhook is checked for a valid signature, logged, and retried if the receiving system is down. For tools that cannot send webhooks, we poll for changes on a schedule instead.

API middleware and data transformation

Middleware is the layer that translates between two systems that describe the same thing differently. A HubSpot company with three contacts might need to become one Xero contact with a billing email and two others on file.

That translation, and the business rules around it, lives in one place we document and you own. When a rule changes, it changes once.

Payment gateway and financial integrations

Firms that bill clients online can take payment through Stripe, Square, PayWay or Tyro and have the payment land in Xero or MYOB against the right invoice, with fees recorded separately.

Card details never touch your systems. Payment providers hold them and we work with the tokens they return.

Capabilities catalogue

How Melbourne businesses ask for integration work

The phrasings we hear most, and what sits behind each one.

How people search for this in Melbourne

  • API development companies in Melbourne, and what separates them
  • An integration agency that documents what it builds
  • API developers in Melbourne available for a single connection or a full platform
  • Freelance API developer work, backed by a company that supports it afterwards
  • Integration specialists for accounting, CRM and job management platforms

What we build

  • Xero and MYOB connections in both directions
  • Custom APIs between systems with no native link
  • Middleware that retries and alerts rather than failing silently
  • Platform integrations across the tools you already run
  • Documented endpoints, so the next developer is not reverse-engineering it
Case Study

Connecting Xero, HubSpot and a customer portal to eliminate double data entry

A Melbourne professional services firm was entering client data into HubSpot CRM, re-entering invoices into Xero, then manually updating their client portal. We built API integrations that sync contacts, invoices and project data automatically across all three platforms.

Read the full case study
12hrs Saved per week
3 Systems connected
0 Manual data entry

We had people spending hours every day re-keying data between Xero and our CRM. HELLO PEOPLE connected everything with APIs. Now invoices, contacts and project data sync automatically. The time savings alone paid for the project in two months.

Managing Director Melbourne professional services firm · 40+ staff
Why Choose Us

Integrations that keep running after go live

A Perth team that books calls in Melbourne hours, knows the platforms professional firms run on, and builds integrations that tell you when something goes wrong.

Australian API developers who understand Melbourne businesses

Our team is in Perth, two hours behind Melbourne for most of the year and three during daylight saving. Calls are booked inside Melbourne business hours, and you talk to the developers building your integration, not an account manager relaying messages.

When a field mapping question comes up mid-build, you get a direct answer the same day, not a ticket number.

Built around the platforms Melbourne businesses use

HubSpot, Salesforce, Xero, MYOB, SharePoint and the project and practice tools professional firms use are platforms we have connected before. We already know their rate limits and their odd behaviours.

That matters most for Xero, which limits how many calls an app can make each minute and each day. An integration that ignores those limits works in testing and stalls at month end.

APIs designed for your business, not forced from a template

Sometimes a firm needs its own API: a client portal backend, a partner feed, or a single place several internal tools read from. We design those around your actual records, with versioning so a change does not break the apps already using it.

You review the design before any code is written, and it arrives with documentation your next developer can pick up.

Integrations that run without you thinking about them

Every integration logs what it did, retries what failed and alerts us when something keeps failing. If Xero is down for maintenance overnight, the sync picks up where it left off in the morning.

You can see a plain record of what moved and when, which answers most "did that invoice sync?" questions without calling anyone.

Your business data stays protected

Client records and financial data travel encrypted, access is limited to what each system needs, and every change is logged with who or what made it.

Where a client needs data kept in Australia, we host in Australian cloud regions or inside your own infrastructure.

How It Works

From the first system map to a live sync

Five stages, each with something you can see and approve.

  1. Discovery & Requirements

    We sit down with the people who do the retyping today and map every system, record and hand-off, including what should happen when a sync fails.

  2. Architecture & API Design

    We write down which system owns which data, design the endpoints and agree how each system signs in. You approve that document before the build starts.

  3. Build & Integrate

    Fortnightly demos using your real systems, starting with the connection that saves the most time. You see real clients and invoices moving, not a mock-up.

  4. Test & Validate

    We try duplicate contacts, part payments, cancelled deals and rate limits, then your team runs a normal week of work through it before go-live.

  5. Deploy & Monitor

    The integration goes live with logging and alerts switched on. If a connection fails overnight it retries automatically, and we are told if it keeps failing.

Why us

Why Melbourne teams hand us their integrations

  • Developers you can talk to

    You speak to the people writing the code. Calls are booked in Melbourne business hours.

  • Professional services experience

    CRM, accounting, timesheet and portal connections are among the most common work we do.

  • Fixed price, agreed first

    The scope and the price are set before we start. No hourly billing that creeps upward.

  • Building integrations since 2007

    Over 18 years of connecting Australian business systems, and most of the ways they break.

  • Monitoring from day one

    Logs, retries and alerts are part of every build, not an extra.

FAQs

What people ask before connecting their systems

What API and integration work do you do for Melbourne businesses?

Custom REST APIs, connections between systems such as HubSpot, Salesforce, Xero and MYOB, webhooks, middleware, payment integrations and moving data out of older systems. We build in Laravel, Node.js, .NET and Python.

Can you connect HubSpot and Xero so we stop typing clients twice?

Yes. It is one of the most common jobs we do. Won deals create contacts in Xero, invoices and payments flow back so the CRM shows what each client owes, and we agree which system owns each field before we build.

How do you price an integration project?

After a free scoping call we give you a fixed price before work begins. One connection between two cloud systems is at the smaller end. A custom API behind a client portal, or several systems joined through middleware, is larger. You know the full cost up front.

How long does it take to connect our systems?

A straightforward link between two systems takes 2 to 4 weeks. A custom API with several apps using it takes 6 to 12 weeks, and a multi-system project with middleware 8 to 16 weeks. You see progress in a demo every fortnight.

Can billable hours flow from our project tool into Xero invoices?

Yes. Approved time can become draft invoices in Xero on a schedule you choose, grouped by client and project, so a person reviews them before they are sent.

What if one of our systems has no API?

We work with what it offers: a direct database connection, a scheduled file export, or a read-only data feed. If the data exists, we can almost always get it out safely.

What happens when an integration fails?

It retries on its own for short outages. If a problem persists, an alert reaches us and we fix it, usually before anyone on your team notices.

Do you also build APIs for mobile apps and portals?

Yes. Sign-in, data sync, file uploads, notifications and payments, served to web portals and to iOS and Android apps through one API.

Tell us which systems should be talking

Tell us which systems need to talk to each other, what data needs to move, and where the current process fails. We will come back with a practical integration scope and next step.

Prefer a quick chat? Call 0425 531 127. We answer the phone in Perth.