DataCite Metadata Search

The DataCite Metadata Search service aims to support efforts at increasing the ease and prevalence of data citation. By exposing and providing a search interface for metadata attached to datasets that are registered with the DataCite Metadata Store, the Search service allows researchers to find others’ data and to track their own data’s DOI and citations.


The DataCite Consortium, which has as its current Managing Agent the German National Library of Science and Technology, TIB.

Licensing and cost

The APIs are licensed under Apache 2.0, and are free.

Development Activity

The Metadata Search service was made available in July 2011.

DataCite is a not-for-profit organisation; no information is available about its funding streams.

Platform and interoperability

As a web-based service, Metadata Search is platform agnostic; no browser limitations are advertised. The search mechanism is based on Solr/Lucene. The service provides an interface to the DataCite Metadata Store.

The Search API requires a servlet container such as tomcat, as well as Maven 2.2.1 and JDK 6; it uses Solr Search Handler for all API calls.

Functional notes

The search function uses the information contained in the DataCite Metadata Schema. Indexing takes place once a day, and so submissions to the Metadata Store will take up to 24 hours to appear in a search.

Documentation and user support  

A Help section details the Search service’s capabilities and restrictions.

The DataCite project has an extensive support infrastructure, starting with a contact form on the main site, as well as email address listings for technical and membership questions. DataCite sends a regular newsletter through its mailing list, and has also organised a developers google group.


The Metadata Search service uses an extremely straightforward web interface.

Expertise required

Integration requires deep system administration knowledge, as well application programming experience and familiarity with the HTTP protocol.

Standards compliance

Metadata Search results incorporate DOIs. DataCite has created its own metadata schema; the standards underlying this schema are not advertised.

The API is RESTful, and uses the HTTPS standard.

Influence and take-up

The DataCite Consortium has over 20 Members and Associate Members, located in North America, Europe, Asia, and Australia.  A listing is found at  Information about wider use is unavailable.

Last reviewed: 
9 August, 2013