The Physical Sciences Data Infrastructure (PSDI) aims to accelerate research in the physical sciences by providing a data infrastructure that brings together and builds upon the various data systems researchers currently use. Our webinar series provide updates on our exploratory pathfinder work, and on relevant tools and technologies that have been developed by members of our community. This record contains a more detailed version of the presentation that was presented at the "How do we use metadata to plug your Physical Science data or software into PSDI" webinar presented by Dr Aileen Day on 11th December 2025. https://www.psdi.ac.uk/event/webinar-metadata/ The first version of the Physical Sciences Data Infrastructure (PSDI) was launched in spring this year. Here we describe how we plug a physical sciences resource (data, services, tools, guidance) into PSDI’s resource catalogue and PSDI cross data search via PSDI’s metadata. This webinar would be interest to new PSDI partners and physical sciences researchers who are considering contributing to PSDI in the future.