Read-only publication API

Build and inspect a query

Business-facing views come first. Technical collections and low-level identifiers remain available under advanced filters.

Query semantics

Filters can be combined. “Unavailable” always means explicitly assessed as unavailable; a missing assessment remains “not assessed”. The Explorer is generated from the same query contract enforced by the API and used by the catalogue pages.

/api/countries

Choose a view, add any filters you need, and run the query.