OSTrails‘ goal is to make research more transparent, reusable, and efficient by applying FAIR principles across every stage of the research process. The project brings together 41 partners from 17 countries to test practical solutions for improving research planning, monitoring, and evaluation. Through 25 pilot initiatives and the integration of over 80 tools via its Plan-Track-Assess (PTA) Framework, the project is building a scalable and adaptable foundation for open science across diverse research contexts.