By the end of the year, Android devs will be able to use a trust API from Google’s Project Abacus in their apps, Google ATAP Director Dan Kaufman suggested at last week’s I/O conference. The API, which will run in the background continually, is aimed at doing away with passwords. It will use a smartphone’s sensors to check users’ current locations, typing patterns and voice patterns, as well as for facial recognition. It will create a cumulative trust score that will authenticate users so they can unlock their devices or sign into applications.