npm-download-counts
Note: the npm download counts are pretty dodgy for a number of reasons, you probably shouldn't pretend they are accurate.
const moment = downloadCounts = package_name = 'levelup' start = // start date for lookup end = // end date for lookup ; ;
Gives you something like:
levelup was downloaded ~122450 times in the last month
levelup was downloaded ~16344 times in the last 3 days