Ecommerce & Payments · POS + payments
Square
integration & API.
Square integrations connecting in-person and online sales with the rest of your business.
S What is Square?
Square in plain English.
Square is a payment and point-of-sale (POS) platform popular with retail, hospitality, and small business — handling card payments, in-person POS, online checkout, and inventory in one ecosystem.
What businesses use it for
Common Square
use cases.
- 01 In-person card payments via Square Reader and Terminal
- 02 Retail and hospitality POS with inventory management
- 03 Online stores through Square Online
- 04 Customer directory and basic loyalty programs
- 05 Payroll and team management for service businesses
Why custom?
Beyond the default Square integrations.
Square is the default for in-person retail and food-and-beverage businesses going online. We build Square integrations that unify in-store and online inventory, sync sales to accounting, and feed customer data into your CRM and marketing tools.
What we build with Square
Common Square integrations.
Real-time inventory sync between Square POS and ecommerce
Sales data into Xero, QuickBooks, MYOB
Customer data into CRM and email platforms
Custom reporting across Square locations
Commonly paired with
Square works with the rest of your stack.
How we build
Production-grade.
Not Zapier in a trench coat.
Every Square integration we ship handles failure properly: idempotent jobs, retry logic, dead-letter queues for unrecoverable cases, and observability so you can see exactly where data is at any moment.
Tested
Real test suite, real edge cases. Not just "it worked once."
Observable
You see what is happening — events logged, errors surfaced.
Maintainable
Documented, version-controlled, handed over properly.
More Ecommerce & Payments
Other ecommerce & payments platforms we connect.
S Shopify
Custom Shopify integrations and headless storefronts when the theme economy isn't enough.
W WooCommerce
WooCommerce integrations and AI automation for businesses already invested in WordPress.
B BigCommerce
BigCommerce integrations and headless builds for stores ready to scale beyond Shopify.
S Stripe
Stripe integrations that handle subscriptions, marketplaces, and edge cases the docs gloss over.
FAQ
Common questions about Square integration.
Does Square have an API?
Yes — Square has a comprehensive set of APIs (Catalog, Orders, Payments, Customers, Inventory) suitable for custom integrations.
Can Square sync with Xero?
Yes — we build Square ↔ Xero integrations that pass through sales, refunds, fees, and customer data with proper GST handling.
Related reading
Thinking we’ve published on this kind of work.
Why we build marketing sites on Astro, not WordPress
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Square?
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