Are you trying to track all the activity in your Marketo instance? like the Audit Trial under Admin? I don't think is possible out of the box, but contact your account manager and they can point you in the right direction.
Thanks for your reply Diego Lineros. We are trying to track logins specifically. Another department monitors all our IT security and they want to be able to see and monitor if there are login attempts from unapproved regions or IP addresses etc...
I don't think the API current allows us to pass the user login data.