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	1838	21 April 2020
HTML entities in journal titles Metadata Retrieval content-registration , metadata-retrieval , xml_support	4	708	30 June 2026
A summary of the community’s contributions to TidyTuesday Metadata Retrieval metadata-retrieval , data-science	2	162	11 June 2026
Deprecating Retraction Watch annotations in the Labs API Metadata Retrieval labs , retraction_watch	0	56	29 May 2026
How to create a local list of API requests with Bruno Interfaces for Machines rest-api , metadata-retrieval	0	32	28 May 2026
Roles appearing in the REST API and fix for peer reviewers Interfaces for Machines rest-api , peer-review , metadata-schema	0	7	22 May 2026
Updates to CSL reference styles Interfaces for Machines content_negotiation	9	87	23 April 2026
Can Publishers Help Fix CrossRef Affiliations Metadata Issues? Metadata Retrieval rest-api , metadata-retrieval , metadata-quality , affiliation	1	51	17 April 2026
2026 public data file now available - Crossref Metadata Retrieval community , blog , metadata-retrieval , public-data-file , api	6	120	31 March 2026
Get and sync all Crossref metadata Interfaces for Machines rest-api , snapshots , public-data-file , best-practice	0	35	30 March 2026
UNIXREF XML API inserting incorrect whitespace between HTML-like elements Interfaces for Machines metadata-retrieval , xml_api	4	84	19 March 2026
Improving our reference matching strategy to reduce incorrect citation links Metadata Retrieval references , reference-matching , relationships , metadata-matching	0	533	10 March 2026
Missing reciprocal relationships are being added back in Metadata Retrieval rest-api , relationships	0	32	27 February 2026
REST API pools: Which to use and when? Interfaces for Machines rest-api , community , metadata-retrieval , metadata_plus , best-practice	0	117	23 February 2026
Date types in the REST API Interfaces for Machines rest-api	0	81	16 January 2026
Updates to REST API documentation Metadata Retrieval rest-api , documentation	0	72	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	120	8 December 2025
Updates to REST API rate limits Interfaces for Machines rest-api , metadata-retrieval	0	140	2 December 2025
JATS elements in abstract (Is this the expected behaviour?) Metadata Retrieval metadata-retrieval , abstracts , jats	8	237	26 November 2025
Piecing together the Research Nexus: uncovering relationships with open funding metadata - Crossref Metadata Retrieval community , blog , funding , metadata-matching	1	78	28 October 2025
Meaningful whitespace removed from JSON REST API Metadata Retrieval rest-api , metadata-retrieval	1	44	30 September 2025
A way, per DOI, to get original metadata deposit XML? Interfaces for Machines rest-api , metadata-retrieval	6	81	29 September 2025
Upgrade to REST API Elasticsearch Metadata Retrieval rest-api , metadata-retrieval	1	58	22 September 2025
Any websites that display abstract from metadata service? Metadata Retrieval metadata-retrieval , abstracts	2	57	12 September 2025
Authenticated-orcid Interfaces for Machines orcid , rest-api , metadata-retrieval	1	199	2 September 2025
What's going on with the REST API? Indexing issues Interfaces for Machines rest-api , bug	0	203	20 August 2025
Invalid CSL-JSON record types Interfaces for Machines rest-api , bug , metadata-retrieval , content_type_advice	1	35	19 August 2025
Fetching reindexed works Metadata Retrieval rest-api , bug , metadata-retrieval , xml_api	9	67	18 August 2025
OAI-PMH - preprints and incremental updates Metadata Retrieval cited-by , oai-pmh , metadata-retrieval	1	63	15 August 2025
Publication types for citations in updates for schema 5.4 Metadata Retrieval rest-api , schema , content-registration , metadata-retrieval	5	117	4 July 2025