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Check whether a scholarly work has been retracted, corrected, or had an expression of concern raised (via Crossref + Retraction Watch).
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Based on SOC occupation classification
Audit a whole bibliography (BibTeX, RIS, or CSL-JSON) in one call — per-entry fabrication verdict and retraction status, plus a corpus summary.
Resolve scholarly identifiers (DOI, PMID, PMCID, ISBN, arXiv, ISSN, ADS bibcode, WHO IRIS URL) into formatted citations (10,000+ CSL styles) and bibliography exports (BibTeX, RIS, EndNote, CSV…), and check retraction, open-access, and citation-fabrication status. Calls a documented REST API over plain HTTP — no install, no API key needed for the free tier.
Check whether a scholarly work is openly accessible and return the best legal free URL, license, and version (via Unpaywall).
Export resolved citations to a reference-manager file format (RIS, BibTeX, CSL JSON, EndNote XML, RefWorks, NBIB, Zotero RDF, CSV, or plain text).
Format one or more scholarly identifiers as citations in a chosen style (Vancouver, AMA, APA, IEEE, CSE, or any CSL style ID).
Resolve a scholarly identifier (DOI/PMID/PMCID/ISBN/ISSN/arXiv/ADS/WHO IRIS) to structured CSL JSON metadata.
| name | check-retraction |
| description | Check whether a scholarly work has been retracted, corrected, or had an expression of concern raised (via Crossref + Retraction Watch). |
Looks up the live retraction status of an identifier against Crossref's update relationships and the Retraction Watch database. The route resolves any supported identifier to a DOI first, then checks it. Returns retraction / correction / expression-of-concern flags plus the notice records.
id (string, required) — one identifier per call: DOI, PMID, PMCID, arXiv ID, or ADS bibcode. Pass it verbatim (PMID: and similar prefixes are tolerated). Books/ISBNs have no DOI, so they return a "no DOI" result.{
"ok": true,
"doi": "10.1016/s0140-6736(97)11096-0",
"resolvedFrom": { "type": "pmid", "value": "9500320" },
"result": {
"isRetracted": true,
"hasCorrections": false,
"hasConcern": false,
"notices": [
{
"type": "retraction",
"label": "Retraction",
"doi": "...",
"date": "1998-03-06",
"source": "crossref"
}
],
"title": "..."
}
}
resolvedFrom is present only when the input was not already a DOI.result is null and reason is one of no_doi / timeout / upstream.POST /api/retraction-check with { "id": "…" }./tools/retraction-checker.checkRetraction.curl -sS -X POST "https://scholar-sidekick.com/api/retraction-check" \
-H "Content-Type: application/json" \
-d '{"id":"10.1016/s0140-6736(97)11096-0"}'
verifyCitation for fabrication detection (different concern — fake vs. retracted).checkOpenAccess for legal-copy lookup.