OSTrails is a three-year EU-funded project (February 2024 – January 2027) aiming to advance FAIR (findable, accessible, interoperable and reusable) research practices by improving data management and traceability. Bringing together 38 partners and 24 pilot initiatives, the project is developing interoperable knowledge graphs and modular FAIR assessment tools to create a more connected and efficient research ecosystem. By fostering collaboration across disciplines, OSTrails supports more transparent, reusable, and evidence-based scientific research.