| page | No | Ranked page number, 1 when omitted. page × limit may not exceed 10,000; not with cursor. | |
| sort | No | relevance, newest, oldest, recently_updated, most_cited, most_viewed, or most_downloaded. Omitted: relevance when text or query is set, else newest. Not with cursor. | |
| text | No | Plain words and phrases, searched literally: every query-syntax character is escaped, so "Climate change: impacts" works and text can never cause a syntax error. Terms are ANDed. | |
| limit | No | Rows per page, 1–100. | |
| place | No | A geographic place phrase, matched against deposited place names. | |
| query | No | OpenSearch query-string syntax — field paths (titles.title:"…", creators.name:…, relatedIdentifiers.relationType:…), AND/OR/NOT, ranges, wildcards. Field paths: datacite_list_reference topic query_syntax. ANDed with text and the filters. | |
| cursor | No | Cursor walk over the full result set in registration order: "*" to start, then the nextCursor of the previous page, unchanged, with the same query and filters. Not with page or sort. | |
| funder | No | A funder ROR ID, a Crossref Funder ID (10.13039/100000001, its doi.org URL, or the bare digits), or a funder name. | |
| creator | No | A creator ORCID iD (0000-0002-1825-0097, 16 digits, or an orcid.org URL; checksum verified) or a name — every name token must appear in one creator field. | |
| subject | No | A subject phrase, matched case-insensitively against subject terms. | |
| language | No | ISO 639-1 language code of the work, any case (en, de). | |
| licenses | No | The work's own license ids (any match), SPDX-style: cc-by-4.0, cc0-1.0, mit. Lowercased, then matched exactly; common ids: datacite_list_reference topic licenses. | |
| affiliation | No | A ROR ID (021nxhr62 or a ror.org URL) — matches creator and contributor affiliations — or an affiliation name phrase. | |
| provider_ids | No | Provider ids (any match), e.g. dryad — the providerId datacite_search_repositories returns. Any case. | |
| published_to | No | Latest publication year (inclusive). Alone, the range is open-ended. | |
| min_citations | No | Only works DataCite records at least this many citations for. | |
| include_facets | No | Add top facet counts (resource types, years, repositories, providers, affiliations, fields of science, licenses). Adds 2–8 s. | |
| published_from | No | Earliest publication year (inclusive). Alone, the range is open-ended. | |
| repository_ids | No | Repository ids (any match), shaped provider.repository — e.g. dryad.dryad or cern.zenodo — as datacite_search_repositories returns them in repositoryId. Any case. | |
| resource_types | No | resourceTypeGeneral values (any match): dataset, software, computational-notebook, workflow, model, physical-object, … PascalCase accepted. Full list: datacite_list_reference topic resource_types. | |
| fields_of_science | No | OECD Fields of Science ids or labels (any match), e.g. computer_and_information_sciences or "Earth and related environmental sciences". List: datacite_list_reference topic fields_of_science. | |
| affiliation_country | No | ISO 3166-1 alpha-2 country of a creator or contributor affiliation, any case (DE, us). Alpha-3 codes and names are rejected. | |
| include_child_funders | No | Also match the ROR funder's child organizations. Only with a ROR funder. | |