HAL Search API (ENPC collection)
École des Ponts ParisTech's scientific output is deposited in its institutional open-access repository, exposed as the ENPC collection on the national HAL platform operated by CCSD. The HAL Search API (Solr-backed) returns publication metadata in JSON/XML; the ENPC collection endpoint resolves and reports tens of thousands of records. The API is national HAL infrastructure scoped to the institution's collection, not an ENPC-hosted endpoint.