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EROMM Search - Other Access Interfaces

EROMM Classic and EROMM Web Search are accessible through other, machine-readable interfaces beside EROMM Search or EROMM Classic's web interface. These interfaces are meant to facilitate the integration of EROMM's databases into other information systems like library portals or subject gateways etc.

Feel free to integrate EROMM into your search applications.

EROMM Classic

EROMM Classic is accessible through Z39.50, SRU and OAI-PMH.


Z39.50 is the established, traditional network protocol for searching remote databases. Further documentation on the Z39.50 protocol can be found at the Z39.50 maintenance agency at the Library of Congres' website.

The connection details are listed below. Please note that the character encoding returned in a Z39.50 response depends on the TCP-port you connect to.
Ports:210 (for ISO 5426 encoding)
20010 (for ISO 8859-1 encoding)
20011 (for ANSEL encoding)
20012 (for UTF-8 encoding)

The Z39.50 server supports the output of records in a variety of formats, among them MARC 21 and UNIMARC.

Search/Retrieve via URL (SRU)

SRU is the HTTP and XML-based “little brother” of Z39.50. Please see the SRU section on the Library of Congres' website for further details. Currently only the protocol version 1.1 is supported. In addition to Dublin Core, records can also be retrieved in MARC 21 and UNIMARC (and other formats). Please see the explain record for details on available indexes etc.

EROMM Classic (full database)

OAI Protocol for Metadata Harvesting (OAI-PMH)

While Z39.50 and SRU are the best choice for integrating EROMM Classic in a distributed search environment, the Open Archives Initiative‘s Protocol for Metadata Harvesting facilitates frequent downloading of larger amounts of data in order to integrate them in other metadata repositories or search engines. Please see the Open Archives Intiative's website for further information. Currently the records in EROMM Classic are available in Dublin Core and MAB-2.

EROMM Web Search is accessible trough an OpenSearch interface.


OpenSearch is a collection of formats intended to share search results. It was created by A9, a subsidiary company of The EROMM Web Search interface is built on the recent version 1.1 (Draft 5). Please see the Description Document for the available options.

OpenSearch is supported by many browsers and other programs. For more information please see

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Last modified:: 2023-10-19, 9:32