Developer Resources

Get access to the developer tools for your specific location OR if you are not in any of the below regions, don't worry, select any of the regions to get started:

⦿ Australia 
⦿ Canada 
⦿ Ireland
⦿ Japan 
⦿ United Kingdom 
⦿ United States 

Remember, your applications must adhere to Square developer restrictions, including, but not limited to, the Prohibited Goods and Services with Square point of sale guidelines.

NEW: Stuck on an idea? See what problems the sellers need solved.

Prize Category Resources

⦿ Square Terminal API  

⦿ Square Bookings API 

⦿ Square Cash App Pay

⦿ Square Checkout API

Get Inspired

⦿ Check out last year's winners
⦿ See what's already in the Square App Marketplace
⦿ Join the Square Developer Forums