Square API
Payments · Banking & Fintech
Square API is a comprehensive payment and commerce platform API from Square, Inc. ) that enables developers to build custom point-of-sale applications, online payment flows, inventory management systems, subscription billing, and retail commerce solutions.
Square API Highlights
Square API is verified for developer integrations in global and multi-region environments, providing documented endpoints, sandbox testing, and developer support.
OAuth 2.0 / Access Token
500 requests/min per endpoint
Global
United States
United KingdomSquare API is best for:
Businesses in the US, UK, Canada, Australia, Japan, France, Spain, or Ireland needing a deeply integrated in-person + online payments platform Nigeria is NOT a supported Square market.
- 2.6% + 10¢ in-person, 2.9% + 30¢ online
- No monthly fees on basic plan
Square API Core Features & Capabilities
Features Included
Not Supported
Square API Supported Webhook Events
Webhooks supported (Webhooks). Check official documentation for endpoint setup.
Required Access Documents for Square API
- Square AccountRequiredA verified Square merchant account is required to use the Square API.
- Business ID / Tax InfoRequiredRequired during merchant account verification.
Different Square API use cases
- Retail POS Systems:Build custom point-of-sale applications for retail stores using the Square API to process in-person card payments.
- Restaurant Management:Integrate the Square API into restaurant ordering systems for table-side payments, tipping, and order management.
- Online Store Checkout:Embed Square's payment form via the Square API to accept credit card payments in your web store.
- Subscription Services:Manage recurring billing and membership fees with the Square API's subscription management endpoints.
- Inventory Sync:Keep product stock levels synchronized across physical and online channels using the Square API inventory endpoints.