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, manage catalogues, track inventory, book reservations and customize Square Online.
Ensure sellers can compensate their employees and schedule staff with team management and recording tools.
Create a path for sellers to grow relationships by integrating customer, loyalty and gift card features directly into your application.
Support sellers as they leverage the Square platform across all aspects of their businesses and across multiple locations.
Video Tutorial
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.
*No purchase necessary. Contest open to residents of the U.S. and Canada who have reached the legal age of majority in the participant’s jurisdiction of residence at the time of entry. Contest begins on January 23rd, 2025 at 10:00 am PST and ends on April 15th, 2025 at 5:00 pm PST or until all prizes have been claimed. Winners will be chosen based on specific criteria and contacted via email. Limit one entry per person. Contest T&Cs here.
