Google Checkout APIs

The information on this page is intended for developers who are performing the technical integration of Google Checkout with a website. For general information about Google Checkout, please visit the Google Checkout homepage or Help Center.

Google Checkout API resources

For your convenience, we've created a variety of tools to help you before, during and after your Google Checkout API integration.

Documentation

Ready to integrate now? These reference materials can help guide you through the integration process:

Try out the Interactive Code Demo for Checkout API.

• 
  

  Integrate your website or shopping cart  (Basic HTML integration)

  • Basic HTML Developer's Guide: These step-by-step instructions take you through a series of short articles that explain how to sign up with Google Checkout, submit orders using basic HTML forms, and then test your integration.
  • Google Checkout shopping cart: These step-by-step instructions explain how to integrate the Google Checkout shopping cart into your website. This solution uses JavaScript to identify products that can be added to the customer's shopping cart. Checkout integration has never been easier!
  • Checkout buttons: View Checkout button options, review layout guidelines, and learn about proper use policies.

• Integrate your shopping cart and order processing system  (More features)

  • Developer's Guide: The API Developer's Guides provide an in-depth look at all of Google Checkout's features. These guides, which are available for XML and HTML integrations, explain how to let customers complete orders using Checkout. They also explain how to integrate your internal order processing systems with Checkout.
  • Sample code: Find sample code in your platform's language and use it to build the foundation for your integration.
  • XML Schema Definition (XSD): Validate your XML messages with our XML Schema Definition.
  • Cookbook: Want to post a cart via an HTML form? Set up HTTP Basic Authentication? Learn how to address these and other common integration scenarios.
  • Checkout buttons: View Checkout button options, review layout guidelines, and learn about proper use policies.