The German Digital Library ("Deutsche Digitale Bibliothek" in german) is the central web portal for the digital cultural heritage in Germany. It holds metadata, previews and links to digitized or born-digital cultural objects. The Deutsche Digitale Bibliothek API uses REST calls and returns JSON. The API allows users to query for information sectors, items including aip, binaries, children, edm, indexing-profile, parents, sources, view, as well as do advanced searching. An API Key is required with service.