Datasets - Mannheim Linked Data Catalog

Organisation for Economic Co-operation and Development (OECD) Linked Data

OECD data and metadata for OECD countries and selected non-member economies.
International Monetary Fund (IMF) Linked Data

IMF data and metadata
European Central Bank (ECB) Linked Data

ECB data and metadata
Bundesamt für Statistik (BFS) - Swiss Federal Statistical Office (FSO) Linked...

Bundesamt für Statistik - Swiss Federal Statistical Office data. Currently contains only the classifications.

You can also access this registry using the API (see API Docs).