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Data pool > direct file download over HTTP
OPeNDAP > file subsetting into an OPeNDAP client and download over HTTP
AppEEARS > API for subsetting and download result as netCDF
Files in the Data pool and OPeNDAP are in sinusoidal projection: https://modis-land.gsfc.nasa.gov/MODLAND_grid.html. GDAL and similar tools will read the data. The AppEEARS API can reproject and reformat the data on request.
Google Earth Engine
A number of the MODIS land products are available for use directly in GEE.
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