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Read the page in original English <a onclick="goToLanguage('en')">here</a>.</div> <script type="text/javascript">/*<![CDATA[*/ // Determine if machine translation message should be shown function displayMachineTranslationMessage() { // Show if Italian, excluding certain pages if (thisSiteLanguage == 'it' && !document.querySelector('.columbia-page-home')) { document.querySelector('#machine-translation-message').style.display = null; } } displayMachineTranslationMessage();/*]]>*/</script> </div> <div class="mt-content-side"></div> <div id="mt-toc-container" data-title="Table of contents" data-collapsed="true"> <button class="mt-toggle mt-summary-toggle ui-button-icon mt-toggle-expand">Table of contents</button> <div class="mt-toc-content mt-collapsible-section mt-toc-hide"> <em>No headers</em> </div> </div> <div id="page-top"> <div id="topic"> <div id="pageText"> <div class="mt-help-search mt-lsf-search" id="mt-portfolio-search"><script type="application/json" id="mt-localizations-help-widget">/*<![CDATA[*/{"Help.Widget.button.text":"Search","Help.Widget.label.text":"Query","Help.Widget.placeholder.text":"Search OCLC Meridian"}/*]]>*/</script><div class="mt-inputredirect" data-query-key="q" data-path="Metadata_Services/OCLC_Meridian"></div></div> <div class="mt-page-summary"><div class="mt-page-overview">OCLC Meridian is a data editing tool that allows you to add and update WorldCat Entities in a persistent, shared, and centralized entity management infrastructure for library linked data work.</div></div> <div class="mt-category-container mt-subpage-listings-container noindex"><ul class="mt-sortable-listings-container " id="mt-sortable" data-user-can-edit="false" data-page-id="54318"><li class="mt-sortable-listing mt-sortable-listing-detailed " data-page-id="54320"><dl class="mt-listing-detailed mt-edit-section"><dt class="mt-listing-detailed-title"><a class="internal" href="https://help.oclc.org/Metadata_Services/OCLC_Meridian/Get_started" rel="internal"><span class="mt-icon-article-topic-guide"></span>Get started</a></dt><dd class="mt-listing-detailed-image mt-hide-image"><a class="internal" href="https://help.oclc.org/Metadata_Services/OCLC_Meridian/Get_started" rel="internal"><span class="mt-sortable-listing-image mt-image-placeholder"><span>No image available</span></span></a></dd><dd class="mt-listing-detailed-overview">Get started with OCLC Meridian.</dd><dd class="mt-listing-detailed-subpages"><ul class="mt-listings-simple mt-listing-article-list mt-topic-hierarchy-listings mt-guide-listings"><li class="mt-show-more-listing"><a title="About OCLC Meridian" class="mt-listing-detailed-subpage-title internal" href="https://help.oclc.org/Metadata_Services/OCLC_Meridian/Get_started/085About_OCLC_Meridian" rel="internal"><span class="mt-icon-article-topic"></span>About OCLC Meridian</a></li><li class="mt-show-more-listing"><a title="OCLC Meridian account roles" class="mt-listing-detailed-subpage-title internal" href="https://help.oclc.org/Metadata_Services/OCLC_Meridian/Get_started/090OCLC_Meridian_account_roles" rel="internal"><span class="mt-icon-article-topic"></span>OCLC Meridian account roles</a></li><li class="mt-show-more-listing"><a title="Sign in to OCLC Meridian" class="mt-listing-detailed-subpage-title internal" href="https://help.oclc.org/Metadata_Services/OCLC_Meridian/Get_started/095Sign_in_to_OCLC_Meridian" rel="internal"><span class="mt-icon-article-topic"></span>Sign in to OCLC Meridian</a></li><li class="mt-show-more-listing"><a title="Set language" class="mt-listing-detailed-subpage-title internal" href="https://help.oclc.org/Metadata_Services/OCLC_Meridian/Get_started/100Set_language" rel="internal"><span class="mt-icon-article-topic"></span>Set language</a></li></ul></dd></dl></li><li class="mt-sortable-listing mt-sortable-listing-detailed " data-page-id="54332"><dl class="mt-listing-detailed mt-edit-section"><dt class="mt-listing-detailed-title"><a class="internal" href="https://help.oclc.org/Metadata_Services/OCLC_Meridian/Search_and_view" rel="internal"><span class="mt-icon-article-topic-guide"></span>Search and view</a></dt><dd class="mt-listing-detailed-image mt-hide-image"><a class="internal" href="https://help.oclc.org/Metadata_Services/OCLC_Meridian/Search_and_view" rel="internal"><span class="mt-sortable-listing-image mt-image-placeholder"><span>No image available</span></span></a></dd><dd class="mt-listing-detailed-overview">Discover how to search for entities and view search results in OCLC Meridian.</dd><dd class="mt-listing-detailed-subpages"><ul class="mt-listings-simple mt-listing-article-list mt-topic-hierarchy-listings mt-guide-listings"><li class="mt-show-more-listing"><a title="Download entity details" class="mt-listing-detailed-subpage-title internal" href="https://help.oclc.org/Metadata_Services/OCLC_Meridian/Search_and_view/Download_entity_details" rel="internal"><span class="mt-icon-article-topic"></span>Download entity details</a></li><li class="mt-show-more-listing"><a title="Search for an entity" class="mt-listing-detailed-subpage-title internal" href="https://help.oclc.org/Metadata_Services/OCLC_Meridian/Search_and_view/Search_for_an_entity" rel="internal"><span class="mt-icon-article-topic"></span>Search for an entity</a></li><li class="mt-show-more-listing"><a title="View entity details" class="mt-listing-detailed-subpage-title internal" href="https://help.oclc.org/Metadata_Services/OCLC_Meridian/Search_and_view/View_entity_details" rel="internal"><span class="mt-icon-article-topic"></span>View entity details</a></li><li class="mt-show-more-listing"><a title="View the history of an entity" class="mt-listing-detailed-subpage-title internal" href="https://help.oclc.org/Metadata_Services/OCLC_Meridian/Search_and_view/View_the_history_of_an_entity" rel="internal"><span class="mt-icon-article-topic"></span>View the history of an entity</a></li></ul></dd></dl></li><li class="mt-sortable-listing mt-sortable-listing-detailed " data-page-id="54585"><dl class="mt-listing-detailed mt-edit-section"><dt class="mt-listing-detailed-title"><a class="internal" href="https://help.oclc.org/Metadata_Services/OCLC_Meridian/Work_with_entities" rel="internal"><span class="mt-icon-article-topic-guide"></span>Work with entities</a></dt><dd class="mt-listing-detailed-image mt-hide-image"><a class="internal" href="https://help.oclc.org/Metadata_Services/OCLC_Meridian/Work_with_entities" rel="internal"><span class="mt-sortable-listing-image mt-image-placeholder"><span>No image available</span></span></a></dd><dd class="mt-listing-detailed-overview">Discover how to create, edit and delete WorldCat entities in OCLC Meridian.</dd><dd class="mt-listing-detailed-subpages"><ul class="mt-listings-simple mt-listing-article-list mt-topic-hierarchy-listings mt-guide-listings"><li class="mt-show-more-listing"><a title="Create an entity" class="mt-listing-detailed-subpage-title internal" href="https://help.oclc.org/Metadata_Services/OCLC_Meridian/Work_with_entities/Create_an_entity" rel="internal"><span class="mt-icon-article-topic"></span>Create an entity</a></li><li class="mt-show-more-listing"><a title="Edit an entity" class="mt-listing-detailed-subpage-title internal" href="https://help.oclc.org/Metadata_Services/OCLC_Meridian/Work_with_entities/Edit_an_entity" rel="internal"><span class="mt-icon-article-topic"></span>Edit an entity</a></li><li class="mt-show-more-listing"><a title="Entity types" class="mt-listing-detailed-subpage-title internal" href="https://help.oclc.org/Metadata_Services/OCLC_Meridian/Work_with_entities/Entity_types" rel="internal"><span class="mt-icon-article-topic"></span>Entity types</a></li><li class="mt-show-more-listing"><a title="Language of entity" class="mt-listing-detailed-subpage-title internal" href="https://help.oclc.org/Metadata_Services/OCLC_Meridian/Work_with_entities/Language_of_entity" rel="internal"><span class="mt-icon-article-topic"></span>Language of entity</a></li><li class="mt-show-more-listing"><a title="Request to delete an entity" class="mt-listing-detailed-subpage-title internal" href="https://help.oclc.org/Metadata_Services/OCLC_Meridian/Work_with_entities/Request_to_delete_an_entity" rel="internal"><span class="mt-icon-article-topic"></span>Request to delete an entity</a></li></ul></dd></dl></li><li class="mt-sortable-listing mt-sortable-listing-detailed " data-page-id="55087"><dl class="mt-listing-detailed mt-edit-section"><dt class="mt-listing-detailed-title"><a class="internal" href="https://help.oclc.org/Metadata_Services/OCLC_Meridian/OCLC_Meridian_APIs" rel="internal"><span class="mt-icon-article-topic-guide"></span>OCLC Meridian APIs</a></dt><dd class="mt-listing-detailed-image mt-hide-image"><a class="internal" href="https://help.oclc.org/Metadata_Services/OCLC_Meridian/OCLC_Meridian_APIs" rel="internal"><span class="mt-sortable-listing-image mt-image-placeholder"><span>No image available</span></span></a></dd><dd class="mt-listing-detailed-overview">Find an overview of the functionality of the OCLC Meridian APIs.</dd><dd class="mt-listing-detailed-subpages"><ul class="mt-listings-simple mt-listing-article-list mt-topic-hierarchy-listings mt-guide-listings"><li class="mt-show-more-listing"><a title="Entity Changes API" class="mt-listing-detailed-subpage-title internal" href="https://help.oclc.org/Metadata_Services/OCLC_Meridian/OCLC_Meridian_APIs/Entity_Changes_API" rel="internal"><span class="mt-icon-article-topic"></span>Entity Changes API</a></li><li class="mt-show-more-listing"><a title="Entity Connections API" class="mt-listing-detailed-subpage-title internal" href="https://help.oclc.org/Metadata_Services/OCLC_Meridian/OCLC_Meridian_APIs/Entity_Connections_API" rel="internal"><span class="mt-icon-article-topic"></span>Entity Connections API</a></li><li class="mt-show-more-listing"><a title="Entity Management API" 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