The Healthsites Quality project funded by HeiGIT aims to develop a framework for assessing the quality of health-related data in OSM in terms of completeness, accuracy (temporal & technical), and trustworthiness, and for visualizing the development of OSM health data over time. This is accomplished by comparing OSM health data with health data from other sources (i.e. the WHO, healthsites.io, KEMRI, etc.). By providing critical information on the completeness and reliability of health data on OSM, targeted improvement of humanitarian aspect is accomplished. The project is based on HeiGIT’s ohsome API and supported with knowledge, ideas, and implementation tasks.