If i have constant contact account with active email marketing product.
Then is any API available for getting email usage related to that account ?
I am trying to show usage on my application dashboard.
You absolutely can connect with Constant Contact to collect information about your Constant Contact email campaigns. Our system allows you to collect information about your individual campaigns through our API which you can then assemble into a report without your program. One thing that is important to note is that some form of plugin or modification would need to be developed for your application in order to show this information unless there is already an integration that exists.
If you are interested in more information about our APIs, I would suggest visiting our Developer site and going through our Getting Started guide here: http://developer.constantcontact.com/get-started.html
API Support Specialist