under api.php route list, a "/api" prefix is default "http://www.site.com/api/reports/documents"
i see you have quite a lot of questions, and I think you should at least tried it out yourself first and ask when you have real error or problem, some of the questions just need a simple test will do, you can get your answer by your own, and more faster than waiting people reply, it save your time and save others' time as well. It's ok to ask a lot of questions but it's not ok to ask before you tried your own, don't abuse it, please putting your own efforts first, especially there lot of people encountering real issue and waiting for helps.