Supercharge Square for sellers of every size. Our entire connected commerce platform – from elegant hardware to a rich suite of Square APIs – is yours to build with. Whether you’re developing an app or composing a bespoke solution, this is the place to make it happen.
Develop in Python, Node.js, Ruby, PHP, Java, and .NET.
Explore endpoints, test your integration, send http requests, and more with a trio of tools designed to help you validate your build.
View, search, and filter your log entries for diagnostics, troubleshooting, and auditing.
Get notifications about your application(s) with in-depth webhooks features.
Experiment with OAuth, Square SDKs, GraphQL, and mobile.
Give sellers the flexibility to process online, in-person, and in-app transactions.
Allow sellers to process orders, to manage catalogs, to track inventory, to book reservations, and to customize Square Online.
Create a path for sellers to grow relationships by integrating customer, loyalty, and gift card features directly into your application.
Ensure sellers can compensate their employees and schedule staff with team management and recording tools.
Support sellers as they leverage the Square platform across all aspects of their businesses and across multiple locations.
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Partner with us to help businesses crush it — yours included. Get resources to create solutions, find customers, and scale up and up and up. Once you’ve built your app or integration on the Square platform, join the partner program that’s right for you:
Publish in the Square App Marketplace as an app partner.
Work one-on-one with sellers as a solutions partner.
Refer businesses to Square as a referral partner.
