This page is used to collect links to useful resources and materials on integrating with Google Checkout. Feel free to add any useful links that may benefit other merchants!

 Integration Options Overview

• Sell single items with Buy Now buttons 
• Send invoices through email 
• Checkout-enabled off-the-shelf shopping cart 
• Custom-built shopping cart (API)
• Free shopping cart
• Combining and translating Google Checkout notifications to PayPal IPN

 Documentation 

• XML API Developer's Guide
• HTML API Developer's Guide
• Using Google Analytics to Track Google Checkout Orders
• Understanding Google Checkout Support for Third-Party Conversion Tracking 

• FAQs and Tutorials
  • General FAQ
  • API FAQ
  • Cookbook Articles
  • How do I include XML API tags in the HTML API? XML to HTML convertor
  • How can I allow buyers to specify their own price (or product name, description, quantity)?   
  • How to move from Google Checkout’s HTML API to the XML API (in PHP) 

 Google Checkout Blogs and Forums

• Blogs
  • Official Google Checkout Blog
  • Google Checkout API Blog

• Forums
  • Google Checkout Merchants Forum
  • Google Checkout Developers Forum
  • Using Google Checkout via Google Base
  • osCommerce Forum for Google Checkout
  • Google Checkout Mod for Zen Cart Community Support Forum
  • Google Checkout for MIVA Merchant

 Sample Code

• XML and Schema Files
  
• Sample Code
  • Classic ASP
  • .NET 
    • Introduction to .NET sample code
  • Perl
  • PHP
  • Java
  • Using Google Checkout Java SDK

• osCommerce Module
  • Google Checkout module for osCommerce Latest release
  • osCommerce Forum for Google Checkout
  • Demo of Google Checkout integration with OSCommerce  
  • Web Shipping Method Generator  
  • Test the response time of the Shipping Providers  
  • Download: osCommerce Automatic Shipping Method Generator  
  • Download: osCommerce Continue-Shopping-URL script v0.1

• Zen Cart Module
  • Google Checkout module for Zen Cart Latest Release  
  • Google Checkout Mod for Zen Cart Community Support Forum
  • Demo of Google Checkout integration with Zen Cart Web Shipping Method Generator
  • Test the response time of the Shipping Providers
  • Download: Zen Cart Automatic Shipping Method Generator 

 Tools

• Google Checkout Button URL Generator
• Acceptance Logos 
• Decode Shopping Cart 
• HTTP Basic Authentication: .htaccess Generator
• Responsehandler Test
  • Download: Responsehandler Test Script
• XML to HTML convertor
  • How do I include XML API tags in the HTML API?
• Interactive Shopping Cart and Builder 

 Policies  

• Terms and Conditions  
• Program Policy
• Content Policy
• Privacy Policy