Documentation

Whether you’re developing a custom solution or building for the App Marketplace, our developer platform has the tools to support you.

Build with Square

Accept payments Create and track orders Manage a product catalog Organize customers Adjust inventory Manage employees

App Marketplace

Find out how to build and publish apps to the Square App Marketplace.

Solution Partners

Share your expertise with independent sellers by becoming a Solution Partner.

Development Tools

Square SDKs

Build in PHP, Java, Python, Node.js, Ruby, .NET, iOS, Android, React Native, & Flutter.

Sample Apps

See Square APIs in action by downloading code templates for simpler setup.

Resources

If you have questions or comments, or just want to keep up with platform updates, there are multiple ways to engage with us or other developers building with Square.

News

Blog
Community

Slack | Twitter
Get Help

Support | Forums
Video Tutorials

YouTube