This guide will walk you through the process of getting set up to collect payments via the Braintree gateway.
Notes:
You will need to get a production username and password from Braintree before you can use the gateway.
Drill down into the payment gateways configuration:

Add a new gateway:

Select Braintree:

Now select your Braintree API version and fill in the fields using your Braintree API credentials:

As a final step, select which payment methods to use with Braintree:

You should now be all set to go. As mentioned above, we highly recommend you run at least one real money transaction before exposing Spreedly to your customers.