Palantir, the software company cofounded by Peter Thiel, is part of an effort by Elon Musk’s so-called Department of Government Efficiency (DOGE) to build a new “mega API” for accessing Internal Revenue Service records, IRS sources tell WIRED.For the past three days, DOGE and a handful of Palantir representatives, along with dozens of career IRS engineers, have been collaborating to build a single API layer above all IRS databases at an event previously characterized to WIRED as a “hackathon,” s...