UC Berkeley Library GeoData (GeoBlacklight) Catalog API
The UC Berkeley Library's GIS and map discovery application, built and hosted by the Library itself (the application source is public at BerkeleyLibrary/geodata and the host resolves inside Berkeley's own network to nginx-prod.lib.berkeley.edu). Its Blacklight JSON interface answers anonymous requests at /catalog.json with a paginated JSON:API-shaped response over 5,156 geospatial dataset records described in OpenGeoMetadata Aardvark fields. This is the only Berkeley-operated API that returns institutional data to a caller with no credentials at all. No OpenAPI is published for it and none was generated.