documentclass{standalone}
 usepackage[inline]{asymptote}
 begin{document}
 thispagestyle{empty}
 begin{asy}
 import three;

 size(200);

 currentprojection=perspective(4,5,5);

 // axes
 real r=1.5;
 draw(Label("$x$",1), O--r*X, Arrow3(HookHead3));
 draw(Label("$y$",1), O--r*Y, Arrow3(HookHead3));
 draw(Label("$z$",1), O--r*Z, Arrow3(HookHead3));

 draw(X--Y--Z--X--O--Y--O--Z,red);
 end{asy}
 end{document}