API Development & Integration Perth
Custom APIs and system integration for Perth businesses.
Perth API developers for businesses tired of double entry, broken connectors and reporting delays. We build custom APIs and system integrations that keep data moving properly.
API development Perth businesses can rely on: REST APIs, middleware, webhooks and API integration Perth teams can run across accounting, CRM, e-commerce, job management and payroll platforms with fixed pricing and clear scope.
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API Development for Perth Businesses That Need Their Systems to Work as One
When staff export CSVs, reformat files and re-enter the same data into multiple tools, the cost is not just wasted admin time. It is slower invoicing, stale reports and avoidable mistakes.
We build API development Perth businesses can use to clean that up: REST APIs for apps and portals, API integration Perth teams can trust between finance, CRM and operations tools, plus middleware that handles the messy data translation in between.
You get senior Perth API developers, fixed pricing and a practical integration plan before the work starts. That means less risk, cleaner data and systems your team can trust every day.
Problems Perth businesses bring to us
These are the conversations we have every week.
Staff copying data between systems manually
Someone on your team exports from one system, reformats it, and imports into another. Every day. Invoices, contacts, orders, timesheets — all moving between platforms by hand.
Zapier and off-the-shelf connectors keep breaking
You tried the plug-and-play tools. They worked for simple stuff but cannot handle your specific data mapping, business rules, or the volume you need. When they fail, nobody knows until data is missing.
Need an API for your app but don't have a backend team
You have a mobile app idea or a web portal that needs a backend. User auth, data sync, payment processing — you need a proper REST API but do not have API developers on staff.
API Development Perth
Show us where data is getting stuck
Tell us which systems are involved, what should sync automatically and where the current process breaks. We will come back with the right integration path and fixed-price scope.
API development and integration services for Perth businesses
Custom APIs, system integrations, webhooks, middleware and payment connections.
Custom REST API development
We build RESTful APIs in Laravel, Node.js, .NET and Python. Clean resource-based endpoints, proper HTTP methods, consistent error responses, pagination, filtering and sorting.
Your mobile apps, React frontends, partner systems and internal tools all consume the same API. One backend, many consumers.
Authentication with JWT, API keys or OAuth 2.0. Rate limiting, input validation, CORS. OpenAPI/Swagger documentation included.
Third-party system integration
Connecting your business systems so data flows automatically. CRM to accounting. E-commerce to inventory. Website to ERP. Job management to payroll.
Xero, MYOB, Salesforce, HubSpot, Shopify, WooCommerce, Square, Stripe, simPRO, ServiceM8, Australia Post: we have integrated with most platforms Perth businesses use.
Real-time sync via webhooks. Scheduled batch sync for systems without webhook support. Queue-based processing for high volumes. Error recovery and retry logic on every connection.
Webhook development and event-driven integrations
Real-time data flow between systems. When an invoice is created in Xero, your CRM updates. When a Shopify order comes in, your warehouse system queues it. When a form is submitted, your sales pipeline triggers.
We build webhook listeners that validate payloads, process data, handle retries and log everything. Reliable event-driven architecture, not fragile point-to-point scripts.
For systems that do not support webhooks natively, we build polling services with change detection.
API middleware and data transformation
When System A speaks a different language to System B, you need middleware. We build the translation layer: mapping fields, converting formats, applying business rules, enriching data.
Common scenario: your job management software needs data from your accounting system, but the data shapes are completely different. Our middleware handles the transformation so both systems stay clean.
Handles data validation, field mapping, format conversion (JSON, XML, CSV, EDI), and business logic in one manageable layer.
Payment gateway and financial integrations
Stripe, Square, PayWay, B2Bpay, Tyro, Windcave: we build payment integrations that process transactions securely and reconcile with your accounting software.
Invoice payment links, subscription billing, split payments, refund automation. Connected to your MYOB or Xero so every transaction reconciles automatically.
PCI compliance, tokenisation, and secure credential management built into every payment integration.
Connecting MYOB, simPRO and a customer portal — eliminating double data entry
A Perth trades business was entering job data into simPRO, then re-entering invoices into MYOB, then manually updating their customer portal. We built API integrations that sync jobs, invoices and customer data automatically across all three platforms.
Read the full case study →We had three people spending half their day copying data between systems. HELLO PEOPLE connected everything with APIs — now invoices, job updates and customer records sync automatically. My team works on actual work instead of data entry.
What you get from Perth-based API developers
Local team, platforms we already know, fixed-price quotes, and integrations that run reliably.
Perth-based API developers: same timezone, same table
We are in Perth. Not offshore behind a local phone number. When you need to workshop how your systems connect, we can sit across the table and map it out on a whiteboard.
API projects need tight communication: data formats, business rules, edge cases. Being local means questions get answered in hours, not days.
Built around the platforms you already use
Xero, MYOB, Salesforce, HubSpot, Shopify, simPRO, ServiceM8, SharePoint: we have built integrations for most of the platforms Perth businesses use. We know their APIs, their limits, and their quirks.
Your API integration connects your actual systems with proper error handling, retry logic and monitoring. Not a demo that breaks the first time an API rate limit hits.
APIs designed for your business, not shoehorned from a template
When off-the-shelf connectors do not fit, we build custom REST APIs from scratch. Clean endpoint design, proper authentication, versioning, documentation.
Your mobile app, web portal, partner systems and internal tools all consume the same reliable API. One source of truth, multiple consumers.
Integrations that run without you thinking about them
API integrations fail silently when built poorly. Ours include monitoring, alerting, error logging and automatic retries. If something breaks, we know before you do.
Queue-based processing for high-volume data. Webhook listeners that handle bursts. Scheduled sync for systems without real-time support. Built to run reliably at scale.
Your business data stays protected
Every API we build uses proper authentication (OAuth 2.0, API keys, JWT tokens) depending on the use case. Data encrypted in transit and at rest. Access controls and audit logging built in.
For Perth businesses handling sensitive financial or customer data, we deploy within your infrastructure and follow Australian data residency requirements.
How We Build Your API Integration
Every project follows this structure. The scope adapts, the discipline stays.
Why Perth Businesses Choose HELLO PEOPLE for API Development
Perth-based team
Same timezone, face-to-face workshops, local support. We are in Perth, not offshore behind a local number.
We know the platforms
Xero, MYOB, Salesforce, HubSpot, Shopify, simPRO, ServiceM8, Square, Stripe — we have built integrations for all of them. We know their APIs and their limitations.
Fixed-price quotes
Every project is scoped and quoted before we start. No hourly billing that creeps upward. You know exactly what you are paying.
18+ years experience
Building APIs and integrations for Australian businesses since 2007. We have seen every integration pattern and most of the edge cases that break them.
Monitoring included
Every integration includes error logging, alerting and automated retries. If something breaks, we know before you do.
Common questions about API development and integration in Perth
What types of API development do you offer in Perth?
Custom REST API development, third-party system integration (Xero, MYOB, Salesforce, Shopify, etc.), webhook development, API middleware, payment gateway integration, and legacy system data migration. We build in Laravel, Node.js, .NET and Python.
How much does API development and integration cost?
A single integration (e.g., connecting your CRM to Xero) typically costs $5,000 to $15,000. A custom REST API for a mobile app or web portal ranges from $15,000 to $50,000+ depending on complexity. We scope every project with a fixed quote before starting.
Can you integrate our existing software with Xero or MYOB?
Yes. Accounting integrations are one of our most common projects. We connect Xero and MYOB to CRMs, job management tools, e-commerce platforms, custom software and websites. Two-way sync, automatic invoice creation, payment reconciliation.
What if our system does not have an API?
We work with what you have. Direct database connections for legacy systems, file-based integration (CSV, XML) for older platforms, screen scraping as a last resort. If data exists in a system, we can usually get it out and into another system.
How long does an API integration project take?
A straightforward two-system integration takes 2 to 4 weeks. A custom API with multiple consumers takes 6 to 12 weeks. Complex multi-system integrations with middleware can take 8 to 16 weeks. Fortnightly demos throughout.
Do you build APIs for mobile apps?
Yes. We build backend REST APIs that mobile apps consume: user authentication, data sync, push notifications, file uploads, payment processing. The API serves both iOS and Android apps through one consistent interface.
What happens when an API integration breaks?
Every integration we build includes monitoring, error logging and automated retries. If a third-party API changes or a connection fails, our retry logic handles transient errors. Persistent issues trigger alerts and we fix them before they affect your operations.
Can you connect old Access databases or legacy systems?
Yes. We regularly connect legacy Access databases, old desktop applications and on-premise systems to modern cloud platforms. Direct database connections, file export processing, or full data migration — whatever makes the most sense for your situation.
API Integration Perth
Tell us what needs to flow between your systems
Tell us which platforms are involved, what data needs to move, and where the current process is breaking down. We will come back with a practical integration path, clear scope, and realistic cost.
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Tell Us What Needs Integrating
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 are Perth-based and we answer the phone.