The BY-COVID project is one of the Horizon Europe projects that has supported the operation and enhancements of the European COVID-19 Data Portal, a critical resource that provides access to open literature and data on both the SARS-CoV-2 virus and the disease. For instance, the portal now contains >17.5 million viral sequences and more than one million open scientific articles related to SARS-CoV-2 and COVID-19, as of September 2023. BY-COVID Work Package 3 is focused on services for the discovery and integration of COVID-19 data by delivering a flexible, tiered metadata discovery system across different domains, metadata standards, and maturity/robustness levels of data sources. This enables the linking of FAIR data and metadata on SARS-CoV-2 and COVID-19, and crucially, on other related viruses and diseases, and on socio-economic consequences, across research fields, from omics, clinical, and epidemiological research, to social sciences and humanities, improving preparedness for future potential emergent disease or pandemic scenarios. Based on the metadata model developed in D3.1, WP3 has implemented the infrastructure to support the three-tiered discoverability concept in the COVID-19 Data Portal as described in D3.2. This report provides a status update of the Portal and outlines the next steps.