How to access OPeNDAP data behind https requiring authentication?

NASA / USGS have placed their OPeNDAP servers behind https which now requires authentication. I have a NASA Earthdata account (username and password) which allows me to access OPeNDAP via a browser (e.g. https://opendap.cr.usgs.gov/opendap/hyrax/MOD11C3.006/MOD11C3.006.ncml). However, I can not figure out how to get Matlab to access these data using: data_url='https://opendap.cr.usgs.gov/opendap/hyrax/MOD11C3.006/MOD11C3.006.ncml'; ncid=netcdf.open(data_url)

I get an authentication error. How can I authenticate my Matlab access?