Overview

DOI metadata from DataCite for datasets, software, samples, workflows, and other research outputs that repositories deposit worldwide. Search it, open a record in full, trace a DOI's relations (versions, parts, supplements, citations), find the repositories that publish in a field, and format citations. Runs without an API key, as a stdio process or a local Streamable HTTP server.

Tools

Capability reference

datacite_search_works _tool

• text (plain words, every reserved character escaped) or query (OpenSearch query syntax), ANDed with filters: resource_types, creator (ORCID iD or name), affiliation (ROR ID or name), affiliation_country, funder (ROR ID, Crossref Funder ID, or name; include_child_funders with a ROR funder), subject, fields_of_science, repository_ids, provider_ids, licenses, language, place, published_from / published_to, and min_citations; list filters take up to 10 values, any of which match
• limit 1–100 (default 20); ranked pages reach the first 10,000 matches under sort (relevance, newest, oldest, recently_updated, most_cited, most_viewed, most_downloaded; default relevance with text or query, else newest), while cursor: "*" walks the whole result set in registration order through nextCursor and takes neither page nor sort
• include_facets adds top counts for resource types, years, repositories, providers, affiliations, fields of science, and licenses (2–8 s slower); every response reports totalCount, effectiveQuery, sortApplied, and appliedFilters

datacite_get_work _tool

• One doi, in any case: bare, with a doi: or info:doi/ prefix, as a doi.org URL, or %2F-encoded
• Titles, creators and contributors with ORCID iDs and ROR affiliations, dates, subjects, descriptions, funding, geolocations, rights, related identifiers and items, repository and provider, and counts (citations, references, versions, parts, views, downloads); long lists are capped and their full sizes reported in truncatedLists and relatedIdentifierCounts
• A DOI DataCite holds no public record for returns found: false with missReason (other_agency, does_not_exist, not_public, unclassified), the registrationAgency when known, and guidance

datacite_trace_relations _tool

• Any agency's doi: a DataCite dataset or software DOI, or a journal article's DOI to find the DataCite data and software it cites or that cite, supplement, or derive from it
• depth 1 (default) or 2 — the second hop expands at most 10 DataCite neighbours and runs only when the first hop leaves max_nodes room; max_nodes 1–100 (default 50, root included) fills with own-metadata targets, then records pointing at the root, then Event Data endpoints, then the second hop; relation_types keeps only the listed relation types, read from the traced DOI's side (omitted: all); include_event_data (default true) adds Event Data citation links
• Edges keep relationType exactly as asserted and list their sources (metadata, reverse_metadata, event_data); coverage states how much of each source was read (up to 100 reverse records per hop, only the first 10 when those are large, and up to 100 events per call), and rootCounts carries DataCite's own counts for comparison. An absent edge is not evidence that no relationship exists

datacite_search_repositories _tool

• query text over names and descriptions, plus field_of_science, repository_types, certificates, software, client_type, and provider_id; or repository_ids alone (up to 25) to look up known accounts
• limit 1–100 (default 20) with page; name-ordered rows carry the repositoryId that datacite_search_works takes in repository_ids, plus providerId, types, certificates, software, subjects, homepage, and re3data link

datacite_get_citation _tool

• format: text (default), csl_json, bibtex, ris, datacite_json, datacite_xml, schema_org, codemeta, or jats
• For text only: style takes a CSL style id (default apa; verified ids under datacite_list_reference topic citation_styles), and one DataCite would silently render as APA fails as unsupported_style; locale takes one of the 61 CSL locales DataCite renders (en-GB, de-DE, fr-FR, …) or a bare language code that expands to its primary dialect (de → de-DE), default en-US (list: topic citation_locales)
• text returns the citation as plain text in citation and the upstream markup in citationHtml; machine formats return the payload verbatim up to 100,000 characters, with its mediaType; a longer payload is cut to its first 100,000 and the cut is disclosed (truncated: true). A DOI DataCite doesn't hold returns found: false as in datacite_get_work; a format DataCite can't render for that DOI fails as format_unavailable

datacite_list_reference _tool

• topic: resource_types, relation_types, identifier_types, date_types, contributor_types, fields_of_science, licenses, repository_types, certificates, software_platforms, client_types, sort_orders, query_syntax, citation_formats, citation_styles, citation_locales, identifier_formats, or coverage
• Returns entries (value, label, group, inverse) and usage notes; makes no upstream request

Features

Built on @cyanheads/mcp-ts-core: stdio and Streamable HTTP transports, pluggable auth (none / jwt / oauth), swappable storage (in-memory, filesystem, Supabase, Cloudflare KV/R2/D1), structured logging with optional OpenTelemetry tracing.

DataCite-specific: