• Access to developer tools
• Documentation for each CPOS API
• Videos
• Other Resources
• Inspiration 

Get access to developer tools for your specific location:

• Australia 
• Canada 
• France (newly launched!)
• Ireland
• Japan 
• Spain (newly launched!)
• United Kingdom 
• United States 

Check out the documentation for each CPOS API (and beyond!):

• Documentation homepage
• Customers API (technical reference)
• Gift Cards API (technical reference)
• Invoices API (technical reference)
• Loyalty API (technical reference)
• Team Management APIs 
  • Team API (technical reference)
  • Labor API

Videos

• Sandbox 101: Using API Explorer
• Sandbox 101: Using Invoices API
• Sandbox 101: Loyalty API

Other resources:

• Sample apps
• Blog
• Slack (join channel #pos-sible-hackathon for hackathon-specific support)
• Developer forums
• Support
• Video tutorials

Inspiration

• Check out what’s already in the Square App Marketplace
• Ideas from the Square seller community