Google Checkout is a payment system that can be used in the cart to accept credit cards. To register for an account, click here.
Once you have registered, you will need to activate Google Checkout in the admin area of the cart and enter in your account information.
1) Go to Cart Settings >> Payment Methods
2) Scroll down to Enable/Add Gateway. Under Enable/Add Gateway select Google Checkout.
3) You will want to use your Google checkout vendor ID and merchant key available from the Google Checkout API link.
4) After you select Integrate via the API, you can take the values for the vendor ID and merchant key and also ensure that the following is checked:
The cart will automatically use only digitally signed XML shopping carts.
