Described herein are antigen binding proteins that bind to pathogenic mycobacteria-derived Mannose-Capped Lipoarabinomannan (ManLAM) and methods and kits for using and making the antigen binding proteins. Also described herein are antigen binding proteins that bind to the alpha 1-2 linkage mannose caps of ManLAM, antigen binding proteins that bind to a mannose cap with up to three alpha 1-2 linked mannose residues, and antigen binding proteins that bind to LAM with a mannose sugar capping motif.