Develop on the platform that sellers trust.
Support Square sellers by building apps for today’s business needs.
Launch fast with Square's developer tools
Using Square’s developer platform means less maintenance of legacy systems and more focus on core customer and product experiences.
- Full sandbox environment
- Interactive API explorer
- Live event monitoring
- Backend SDKs: PHP, Ruby, Java, .Net, Python, Node
- Secure payment SDKs: iOS, Android, React Native, Flutter
Security & Compliance
Our payments APIs include end-to-end encryption, dispute management, fast deposits for sellers, and fraud detection.
Your apps, powered by Square
Shake Shack and Fuzz built custom self-service kiosks that streamline ordering, powered by Square Reader SDK.
Craver creates custom mobile apps for restaurants that integrate into an existing Square Point of Sale using Catalog, Orders, and Payments APIs.
Postmates published an app using Orders API allowing Square merchants to get their Postmates orders in Square Point of Sale.
GoParrot integrated In-App Payments SDK and Orders API to help restaurant chains seamlessly accept digital orders.
Brushfire made it easy for clients to add new touchpoints for ticket sales, by integrating Square payments across channels.
Infinite Peripherals used Square Reader SDK to deliver a digital metering solution for 8,000 Washington, D.C. taxis.