Yes, all the API-specific endpoints are subpaths of some root path, in this case /xAPI/. There're a number of tools that ask for the 'endpoint' and want the path to be given like that, without the statements part of the path (though I encourage people writing such tools to accept *either* form).

The main thrust of my comment is about the statements form, though: the proper URL to send statements to is /xAPI/statements not /xAPI/statements/ . The /xAPI/ part is arbitrary and can be decided by the LRS, but the standard specifies the URLs without the /, and the two forms aren't equivalent (technically with the slash is the default child of the statements resource).