From the Dashboard, click on API and select Call Logs from the drop down.
The Call Logs Section shows information needed to push leads via API
And Example PHP Usage string is displayed below
To test this, click on Test Request Tab and fill in the information you need to see and click on Run.
An Example JSON Response will appear below with the information and will be pushed by the system. Take note that there are fields that are more important than others. For instance, as long as the list ID is valid, even if the campaign ID is wrong, it will push the correct leads information.