Metadata Retrieval

Interfaces for People To retrieve metadata from Crossref, you do not need to be a member. We have various options for retrieving metadata - some are more suitable for human use, and some for machine use. Interfaces for Machines There are APIs for machines (to look up metadata records or DOIs in volume), including: REST API, XML API, OAI-PMH, and OpenURL.

Topic	Replies	Views	Activity
About the Metadata Retrieval category Metadata Retrieval	0	1862	21 April 2020
Issue adding new data citations Interfaces for Machines rest-api , data-citation , beta-users	1	33	30 October 2026
Changes to the Metadata Plus rate limits and monthly snapshot format Interfaces for Machines rest-api , snapshots , metadata-retrieval , metadata-plus	0	47	29 October 2026
Filters documentation not in sync with your live API Metadata Retrieval rest-api , metadata-retrieval	4	74	22 October 2026
Update to content negotiation CSL styles Interfaces for Machines metadata-retrieval , content_negotiation , csl	0	39	19 October 2026
Let’s make the most of your Crossref Metadata Integration Metadata Retrieval rest-api , community , metadata-retrieval , metadata-integration	0	59	14 October 2026
Continuing the Data Citations API endpoint in beta format Interfaces for Machines rest-api , metadata-retrieval , data-citations	0	87	18 September 2026
Get and sync all Crossref metadata Interfaces for Machines rest-api , snapshots , public-data-file , best-practice	2	176	8 September 2026
Our monthly JSON snapshot is smaller, and that's a good thing Interfaces for Machines metadata_plus	0	74	4 September 2026
Changes to cursors, filtering, and sorting in the REST API Interfaces for Machines rest-api	3	404	24 August 2026
Exemples of DOI with corresponding-author role provided Metadata Retrieval xml_samples , schema , xml_support	1	115	17 August 2026
ROR filters for affiliations and funders in the REST API Interfaces for Machines rest-api , ror , metadata-retrieval	0	145	3 August 2026
Refining REST API limits for improved stability and reliability Interfaces for Machines rest-api , metadata-retrieval	1	440	21 July 2026
HTML entities in journal titles Metadata Retrieval content-registration , metadata-retrieval , xml_support	5	803	1 July 2026
A summary of the community’s contributions to TidyTuesday Metadata Retrieval metadata-retrieval , data-science	2	243	11 June 2026
Deprecating Retraction Watch annotations in the Labs API Metadata Retrieval labs , retraction_watch	0	263	29 May 2026
How to create a local list of API requests with Bruno Interfaces for Machines rest-api , metadata-retrieval	0	147	28 May 2026
Roles appearing in the REST API and fix for peer reviewers Interfaces for Machines rest-api , peer-review , metadata-schema	0	50	22 May 2026
Updates to CSL reference styles Interfaces for Machines content_negotiation	9	252	23 April 2026
Can Publishers Help Fix CrossRef Affiliations Metadata Issues? Metadata Retrieval rest-api , metadata-retrieval , metadata-quality , affiliation	1	130	17 April 2026
2026 public data file now available - Crossref Metadata Retrieval community , blog , metadata-retrieval , public-data-file , api	6	339	31 March 2026
UNIXREF XML API inserting incorrect whitespace between HTML-like elements Interfaces for Machines metadata-retrieval , xml_api	4	131	19 March 2026
Improving our reference matching strategy to reduce incorrect citation links Metadata Retrieval references , reference-matching , relationships , metadata-matching	0	589	10 March 2026
Missing reciprocal relationships are being added back in Metadata Retrieval rest-api , relationships	0	73	27 February 2026
REST API pools: Which to use and when? Interfaces for Machines rest-api , community , metadata-retrieval , metadata_plus , best-practice	0	413	23 February 2026
Date types in the REST API Interfaces for Machines rest-api	0	263	16 January 2026
Updates to REST API documentation Metadata Retrieval rest-api , documentation	0	115	18 December 2025
Questions Regarding Japanese Content and the language Field in REST API Metadata Retrieval rest-api , metadata-retrieval , xml_support , multilingual , journal	5	179	8 December 2025
Updates to REST API rate limits Interfaces for Machines rest-api , metadata-retrieval	0	416	2 December 2025
JATS elements in abstract (Is this the expected behaviour?) Metadata Retrieval metadata-retrieval , abstracts , jats	8	357	26 November 2025