This is a slightly easier to use version of the key rank estimation algorithm provided by the labynkyr project. Minor modifications were made to the labynkyr code to achieve some further speed-ups. The code can deal with up to 4096 bit keys. This code was used for all experiments of the CARDIS 2022 paper "Comparing Key Rank Estimation Methods", by Young, Mather, and Oswald (paper is included in this release).