Hello,
At your http://www.tmssoftware.com/site/cloudkey.asp#Google help page you write this:
...
Then select 'Credentials' from the left menu, click 'Create credentials' and select "OAuth client ID". Make sure to select type Application type: 'Web application' and enter a value for the "Authorized redirect URIs". Then press create. The client ID and client secret are displayed on the following screen
However at Where will you be calling the API from? there is no Web application, there is Web browser (Javascript) application. Should I choose that?
And there is also a What data will you be accessing? question. What should I choose there?
Thank you.