This document discusses the EOSC-hub project, which brings together 20 European research infrastructures to offer services, software, and data for advanced research through a central digital innovation hub. The hub acts as a contact point for researchers to discover, access, and reuse over 100 partners' resources over 36 months with a 33 million Euro budget. It outlines how the project contributes to the objectives of the European Open Science Cloud (EOSC) by publishing and providing access to services across disciplines, increasing interoperability between infrastructures, and supporting open science and research artifacts. A catalogue of services is presented spanning various domains from arts and humanities to physical sciences.