Crossref Tools

See how complete your Crossref metadata are — then improve them.

Free, browser-based tools from Metadata Game Changers that measure the completeness and connectivity of any Crossref journal or member against live Crossref data — and turn what they find into action, matching the people and organizations in your metadata to the ORCID and ROR identifiers that connect research together.

100% in your browser — nothing uploaded, no login Live data from the Crossref REST API (polite pool) Any Crossref journal (ISSN) or member (publisher) Open — CC BY-NC 4.0, source on GitHub
New here? · For publishers & editors

Crossref Guide

A hands-on first session with your own journal or member — measure completeness, drill down, retrieve identifiers, and read your Participation Report evolution, end to end. It also explains how Crossref scores differ from DataCite scores and which concepts Crossref metadata can express.

Measure · FAIR

Crossref Completeness

Scores a Crossref journal or member against the MGC FAIR use cases — the concepts Crossref metadata can actually express — one concept at a time.

  • Text, Identifiers, and Connections use cases, concept by concept
  • Drill down to the real values behind each concept
  • Filter by content type, era (current / backfile), query, or sample
  • HTML / JSON reports for sharing and future analysis
Measure · Identifiers

Crossref Connectivity

Measures how well authors, editors, affiliations, and funders carry the identifiers that connect them — and shows how your metadata has changed over time.

  • ORCID, ROR, and funder-identifier coverage at a glance
  • Drill-downs list every unidentified name — quick wins first
  • One click sends them to the ROR / ORCID Retrievers
  • Crossref Metadata Evolution radar — current vs backfile, from your Participation Report
Measure · Over time

Crossref History

Samples a journal’s or member’s works for each deposit year, scores every year with the same FAIR use cases, and plots how completeness has evolved — as the records are today.

  • Trend lines per use case, a radar grid, or an animated year-by-year movie
  • Group by deposit year or publication year; months and quarters for short ranges
  • Open any year’s exact sample in Completeness or Connectivity
  • PNG plots, CSV summaries, and JSON for your own analysis
Retrieve · Organizations

ROR Retriever

Matches affiliation and funder names to ROR identifiers using the same affiliation-matching strategies DataCite, Crossref, and ROR use.

  • Careful algorithmic matching first, full query search as fallback
  • Color-coded confidence with full candidate details
  • CSV results ready for analysis and re-curation
Retrieve · People

ORCID Retriever

Finds ORCID iDs for lists of people, showing each candidate’s most recent employment and journal so the right person is easy to pick.

  • Handles “First Last” and “Last, First” name forms
  • Built-in disambiguation for common names
  • CSV results ready for analysis and re-curation
The tools work as a pipeline. Measure a journal’s or member’s completeness and connectivity → drill down to the specific people and organizations missing identifiers → retrieve their RORs and ORCIDs with one click → re-curate your Crossref deposits and watch the coverage improve. Every hand-off carries its context, so you always know which selection you are improving. The Crossref Guide walks you through the whole loop.
Crossref scores are not comparable to DataCite scores. The two ecosystems carry different metadata, so a Crossref FAIR total is measured against a smaller, Crossref-expressible catalog. Compare a Crossref member to another Crossref member — and see the Crossref Guide for the concept mappings and the four documented approximations.
Try them now — no install, no account: metadata-game-changers.github.io/recuration-watch/crossrefCompleteness.html
Questions, ideas, or a title you’d like help with? Contact Metadata Game Changers — Better Documentation | Better Data | Better Science.
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