This Github webpage describes the SNSF MARK16 Manuscript Room API (https://mr-mark16.sib.swiss). It has been updated in this June 2023 by Silvano Aldà (Core-IT, SIB) based on a first code written by Jonathan Barda (Core-IT, SIB). MARK16 (2018-2023) has been led by Claire Clivaz (PI) with Mina Monier, Elisa Nury and Priscille Marschall (DH+, SIB).