Description: The XFSC Federated Catalogue is a federated metadata and service discovery component used to publish, discover, validate, and manage trusted participants, services, and credential ecosystems across sovereign digital infrastructures. Publisher: Gaia-X / XFSC Ecosystem Source: Gaia-X Federated Services Architecture Documentation Source: Gaia-X Association Source reference: XFSC Last modification: 2026-06-09 Identifier: http://data.europa.eu/dr8/egovera/XFSCFederatedCatalogueApplicationService EIRA traceability: http://data.europa.eu/dr8/DataManagementApplicationService LOST view: Application view EIRA concept: eira:SolutionBuildingBlock Additional identifier: http://data.europa.eu/dr8/egovera/XFSCFederatedCatalogueApplicationService Title: XFSC Federated Catalogue Example: Federated discovery and metadata catalogue for trusted services and participants EIF Layer: TechnicalApplication SBB Type: Free and Open Source Software (FOSS) Synonym: Gaia-X Federated Catalogue Interoperability Saliency: The XFSC Federated Catalogue SBB is a key interoperability enabler for organisational and technical interoperability by providing the Gaia-X compliant federated catalogue . Interoperability Dimension: Structural IoP