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Service · API & system integration
We connect the systems you already run.
API integration services from Brisbane: custom API development that moves invoices, contacts, payments, orders, jobs and stock between Xero, MYOB, MYOB Acumatica, Cin7, Unleashed, Simpro, ServiceM8, Shopify, WooCommerce, Stripe, Square, HubSpot, Chaser - or anything with an API - in either direction. If the connector on the shelf does not fit, we build the one that does.
either directionwebhooks & RESTfixed scope
The problem
The connector on the shelf almost fits
Off-the-shelf connectors are built for the common case: standard fields, one entity, the default flow. When that is the whole story, they are the right answer. The searches that reach us start where the connector almost fits - custom fields, approvals that have to happen between the systems, three entities instead of one, a legacy ERP on one side of the join. The connector covers most of the flow, and the rest lands on a person: exporting, re-keying, checking totals that no longer agree.
What we build
Custom API development, scoped around your records
We build the integration around your fields, your approval points and your entities - not around a vendor's common case. We do this as an independent Xero developer and REST API developer, onshore: middleware development, webhooks and scheduled syncs, system integration services in either direction. Data is validated before it is written; every record that moves leaves an audit trail; anything that touches money keeps a human approval step. Joining the numbers up is our side of the work, not yours.
What we connect
The stack, joined - nothing gets replaced
- Xero API integration - invoices, contacts, payments, bank statement import
- MYOB and MYOB Acumatica, in either direction
- Cin7, Unleashed and Fishbowl linked to Xero for inventory syncing
- Shopify, WooCommerce, Stripe, Square and HubSpot connected to the ledger
- Simpro, ServiceM8, AroFlo, Fergus and Tradify - jobs and job invoices out of the field-service system
- Chaser, ezyCollect and Debtor Daddy fed with live invoices, and paid ones withdrawn the same day
- Employment Hero, Deputy and Tanda - timesheets and payroll joined to the ledger
- Microsoft 365, Google Workspace, file drops and legacy ERPs
- Or anything with an API - REST, webhooks, files, scheduled sync
Find your system
The systems people ask us to join
Below is the stack we meet in Australian businesses week to week. Nothing here is a partnership or a reseller badge - these are simply systems we connect to, over their documented APIs, in either direction. Read it as "yes, we have worked on that side of the join", not as a menu.
Accounting & ERP
Xero · MYOB Business · MYOB AccountRight · MYOB Acumatica · QuickBooks Online · Reckon · Sage · NetSuite · SAP Business One · Dynamics 365 Business Central · Odoo · Wiise · Pronto Xi · TechnologyOne · Epicor · Attaché · SapphireOne · JIWA · Micronet · in-house and legacy ERPs
Field service, jobs & trades
Simpro · ServiceM8 · AroFlo · Fergus · Tradify · WorkflowMax · Ascora · Jobber · Assignar · Skedulo · Buildertrend · Procore · scheduling, timesheets and job costing
Inventory, warehouse & manufacturing
Cin7 Core (DEAR) · Cin7 Omni · Unleashed · Fishbowl · Katana · MRPeasy · Ostendo · Datapel · Netstock · Sortly · barcode scanners, label printers and stock movements
E-commerce, marketplaces & POS
Shopify · Shopify POS · WooCommerce · BigCommerce · Adobe Commerce (Magento) · Maropost Commerce (Neto) · Amazon · eBay · Etsy · Square · Lightspeed · Kounta · Vend · Impos
Payments & banking
Stripe · PayPal · Square · Airwallex · Zeller · Tyro · Ezidebit · GoCardless · Wise · PayWay · eWAY · BPAY · Afterpay · Zip · bank feeds, remittances and ABA files
Getting paid: AR & collections
Chaser · ezyCollect · Debtor Daddy · IODM · Upflow · or the reminder cadence built into your own credit control - with paid invoices withdrawn the same day
Supplier invoices, spend & documents
Dext · Hubdoc · ApprovalMax · Lightyear · Weel · Expensify · SAP Concur · Zoho Expense · Volopay · DocuSign · Annature · and supplier invoices that arrive as email PDFs
CRM, marketing & support
HubSpot · Salesforce · Pipedrive · Zoho CRM · monday.com · ActiveCampaign · Mailchimp · Klaviyo · Zendesk · Freshdesk · Intercom · Copper
Payroll, HR & rostering
Employment Hero · KeyPay · Deputy · Tanda · foundU · ELMO · Humanforce · Astute Payroll · Roubler · timesheet feeds and award-interpreted hours landing in the ledger
Freight & logistics
Starshipit · Shippit · MachShip · Sendle · Australia Post eParcel · StarTrack · carrier rate cards, consignment labels and tracking webhooks
Industry systems
PropertyMe · PropertyTree · Console Cloud · LEAP · Actionstep · Smokeball · Cliniko · Halaxy · Nookal · Power Diary · SafetyCulture · Agrimaster · Figured
Data, files & the plumbing
Microsoft 365 and Outlook · Google Workspace and Gmail · SharePoint · Excel · Power BI · Looker Studio · SQL Server · PostgreSQL · MySQL · ODBC · REST and GraphQL · webhooks · SFTP, CSV and EDI · Zapier · Make · n8n · Airtable · Notion · Slack · Teams · Twilio
Not on the list? That is the normal case, not the awkward one - most of what we join has no logo on this page: a system nobody has heard of outside your industry, a 20-year-old ERP, a portal that only exports a nightly file. If it has an API, a database, or even a CSV that lands in a folder, it can usually be joined. Bring the pair you have and we will tell you honestly whether it needs a build at all.
Proof
The same work, already running in production
Every system on this site is an integration under the surface. Supplier invoice emails are read and coded line by line into the ERP. Statement lines are matched to the ledger with the evidence shown. A legacy ERP is mirrored into reporting that answers in 38 milliseconds. A whole back office runs as one workflow, mail to ERP to alerts. The joining work behind those pages is the service on this one.
How it runs
An A$2,000 audit, fixed scope, your code
- A free meeting, then the A$2,000 AI Opportunity Audit - we map source, destination, timing, validation rules and the exception path
- The audit hands you a costed plan; you approve it before any build begins
- One fixed-scope build, typically 1 to 2 weeks for a first integration
- You own the system and the code - extend it, tune it, or take it in-house
FAQ
Common questions
Do you provide API integration services in Australia?
Yes - onshore, from Brisbane. TwinMind is an API integration company run by its two founders: a CFO and a CTO map the data flow, the controls and the exceptions, then build the integration themselves. Each job is scoped around your own fields, rules and approvals, quoted as one fixed price, and you own the code at the end.
Can you connect Shopify, Stripe or HubSpot to Xero?
Yes. Shopify Xero integration, Stripe Xero integration, Square, HubSpot and WooCommerce are the most requested shapes of the same job: orders, payouts, fees and contacts landing in the ledger under mapping rules your team approves. If the connector on the shelf does not fit, we build the one that does - running on webhooks, REST or a schedule.
Can you link inventory systems like Cin7 or Unleashed to the ledger?
Yes. We build Cin7 Xero integration, Unleashed Xero integration and Fishbowl links for orders, invoices, payments and stock movements - the practical shape of Xero inventory management. If stock and the ledger keep disagreeing, that gap is exactly what we close.
Can you connect field-service software like Simpro or ServiceM8?
Yes. Jobs, quotes, timesheets, invoices and payments are born in the field-service system - Simpro, ServiceM8, AroFlo, Fergus, Tradify, WorkflowMax, Ascora - while the ledger, the payroll and the chasing sit somewhere else. We join them over the documented APIs and webhooks, in either direction, and keep the job number, the site and the visit date attached to the record so the invoice still means something at the other end.
Can you push invoices into a debtor-chasing tool like Chaser or ezyCollect?
Yes, and the part that decides whether it works is the write-back: the moment an invoice is paid, credited or cancelled it has to leave the reminder cadence, or a customer gets chased for money they have already sent. That makes it a two-way sync rather than a one-way feed. If your invoicing system is not on the chasing tool's connector list, the API or a scheduled file is the way in - the same job as our credit control work.
Are you a Xero or MYOB partner?
No. We are an independent development studio, not a reseller or an accredited partner. We build on the documented Xero, MYOB and MYOB Acumatica APIs as a Xero developer and MYOB developer in the plain sense of the words: developers who work with those APIs every week.
What does a custom API integration cost?
A fixed price you see before anything is built. The first meeting is free; the AI Opportunity Audit is a fixed A$2,000, credited in full against your first build, and hands you a costed plan - what to automate first and what it saves you a year - which you approve before any build begins. A first integration is typically built in 1 to 2 weeks.
Can you integrate two systems that have no off-the-shelf connector?
Yes - that is most of our work. Custom API development and middleware development exist precisely for the pairs no vendor connects: a legacy ERP and a webshop, an inventory system and a reporting layer, a mailbox and a ledger. If both sides have an API - or even a file export - they can usually be joined.
Why it matters
Could this be your workflow?
If two of your systems are still passing numbers through a keyboard, the join is usually a one-to-two-week build, not a months-long project - and the Care plan keeps it running as the APIs around it change. We build and integrate the software; the judgement calls stay with your team.
Best for · businesses on Xero or MYOB with a webshop, inventory or legacy ERP beside it; multi-entity groups; teams re-keying between systems
Two systems that should talk? Let's map the join.
We start with the AI Opportunity Audit - a fixed A$2,000: we map the records, the timing and the exception path, then quote the integration as one fixed-scope build. The plan is yours either way.
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