How do I integrate Square API with my application?

Apideck provides a unified POS API that makes Square integration simple. Sign up for free, enable Square in your dashboard, and use our Vault component to let your users connect their Square accounts. We handle OAuth authentication, token refresh, and data normalization automatically.

What Square data can I access through Apideck?

Our Square integration supports 7+ data models including orders, catalog, payments, and merchants. You can perform read and write operations through our unified API, working with the same code structure across all pos platforms.

How does Square authentication work with Apideck?

Apideck's Vault handles Square authentication completely. Your users connect their Square accounts through our secure, white-label UI. We manage OAuth tokens, automatic refresh, and credential storage, so you never have to implement Square's auth flow yourself.

How do I keep my app in sync with Square?

While Square has limited native webhook support, Apideck provides polling-based sync and virtual webhooks to keep your data current. Configure your sync frequency in the dashboard, and we'll handle fetching updates from Square.

Why use Apideck instead of Square's direct API?

Using Apideck's unified API instead of Square's direct API saves significant development time. You get normalized data models, automatic auth handling, and the same integration code works with 200+ other apps. When Square updates their API, we handle the changes so your integration keeps working.

How quickly can I build a Square integration?

Most developers ship a working Square integration within a day using Apideck. Sign up for a free trial (no credit card required), enable Square, and make your first API call within minutes. Our SDKs for Node.js, Python, and other languages make implementation straightforward.

Square POS API integration

Build Square POS integrations in minutes, not months. One API to sync permissioned pos data with Square and 2+ other apps.

7+ data models

SOC 2 certified

Free trial

Manage your integrations

Available in 6 languages

Square
POS API
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Accounting API

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Integration Guide

How to integrate Square API in 3 steps

Build a production-ready Square POS API integration in minutes, not months. No OAuth headaches, no maintenance burden.

Step 01

Create your Apideck account

Start your free trial
Full API access
No credit card required

Step 02

Connect Square via Vault

Use our pre-built Vault component to let your users securely connect their Square account. We handle OAuth, token refresh, and credential storage.

White-label auth UI
Automatic token refresh
SOC 2 certified

Step 03

Start syncing pos data

Make API calls to read and write pos data from Square. Use the same code to connect 200+ other apps.

Normalized data models
Real-time webhooks
Full CRUD support

Start Square integration

Free trial • No credit card required • Setup in under 5 minutes

Code Example

Square API integration code

Integrate Square with just a few lines of code. Our unified POS API normalizes data across 200+ integrations, so you write once and connect everywhere.

Normalized responses — same data structure for all pos apps
Official SDKs — Node.js, Python, and more with TypeScript support
Full documentation — interactive API reference with Square-specific examples

View Square API documentation →

import { Apideck } from '@apideck/node'

const apideck = new Apideck({
  apiKey: process.env.APIDECK_API_KEY,
  appId: process.env.APIDECK_APP_ID,
  consumerId: 'user-123'
})

// List orders from Square
const { data } = await apideck.pos.ordersAll({
  serviceId: 'square'
})

console.log(`Found ${data.length} orders`)

Explore all SDKs ↓

Why integrate Square with Apideck?

Build a production-ready Square integration with enterprise-grade reliability

Ship Square integration fast

Go live with Square in days, not months. Our unified POS API handles authentication, data normalization, and error handling so your team can focus on building features.

7+ Square data models

Access 7+ data models for Square including orders, items and payments. Read and write data through a single standardized API.

Real-time webhook coverage

Keep your product synchronized with Square using webhooks. Receive push updates for invoices, customers, payments, and more without polling.

API Resources

Push and pull Square data

Use our Unify API to get real-time data from Square

Technical Specifications

Square API integration details

Everything you need to know about integrating Square through our unified POS API.

Authentication

OAuth 2.0

Secure token-based authentication

Data Models

7+ resources

Access 7+ normalized data models

Webhooks

Polling supported

Scheduled polling for updates

Security

SOC 2 Type II

Enterprise-grade security certified

Token Management

Automatic refresh

Never worry about expired tokens

API Format

REST + JSON

Standard REST API with JSON responses

Square direct API vs Apideck unified API

Feature	Direct Square API	Apideck Unified API
OAuth implementation	Build from scratch	Handled by Vault
Token refresh	Manual handling	Automatic
Data normalization	Square format only	Normalized across 200+ apps
Error handling	Platform-specific	Unified error codes
Rate limit management	DIY implementation	Built-in throttling
Maintenance	Ongoing updates required	We handle API changes
Additional integrations	Separate work each	Same code, 200+ apps