{"name":"io.github.mlava/scholar-sidekick-mcp","slug":"mlava-scholar-sidekick-mcp","title":"Scholar Sidekick","description":"Catch AI-fabricated citations (real DOI + fake title). Retraction, open-access, 10,000+ CSL styles.","url":"https://mcp.market/server/mlava-scholar-sidekick-mcp","rating":null,"grade":"A","score":86,"certified":false,"status":"active","category":"other","tags":[],"presence":{"score":46,"stars":11,"forks":0,"downloads_week":389,"last_push_at":"2026-10-15T22:06:34.000Z","license":"MIT"},"uptime":{"percent":100,"checks":28,"ok":28,"last_checked_at":"2026-11-04T08:15:26.381Z","last_ok_at":"2026-11-04T08:15:26.381Z","latency_ms":1133},"claimed":false,"transport":"mixed","callable_via_gateway":true,"default_price_micros":0,"repository":"https://github.com/mlava/scholar-sidekick-mcp","website":"https://scholar-sidekick.com/mcp","version":"0.8.13","remotes":[{"type":"streamable-http","url":"https://scholar-sidekick.com/api/mcp"}],"packages":[{"registryType":"npm","identifier":"scholar-sidekick-mcp","version":"0.8.13","transport":{"type":"stdio"}}],"tools":[{"name":"auditBibliography","description":"Verify a WHOLE bibliography in one call — the batch counterpart to verifyCitation. Each entry runs the same fabrication check (real, resolvable identifier paired with a title that does NOT match the resolved paper; Topaz et al., Lancet 2026) plus a retraction lookup, and the tool returns a per-entry verdict table and a corpus summary. Use when the user pastes a reference list, a .bib / .ris file, or asks to 'check all these citations at once' / 'audit my bibliography' / 'which of these references are fake or retracted'. Input: EITHER `bibliography` (raw BibTeX / RIS / CSL-JSON text — format auto-detected) OR `claims` (an array of pre-parsed {title + identifier} objects), not both. Capped at 25 entries per call; excess is dropped and reported via `truncated`. `checks` defaults to ['retraction'] (pass [] to skip); `screenWithLlm` opt-in per entry (same auth gating as verifyCitation). Returns: { format, entries: [{ index, sourceKey?, status: 'ok'|'error', verdict: 'matched' | 'mismatch' | 'not_found' | 'ambiguous', confidence, matched, mismatches, retraction: { checked, doi, isRetracted, hasCorrections, hasConcern, notices } | null, _provenance }], parseErrors: [{ index, error, message }], truncated, summary: { total, matched, mismatch, ambiguous, not_found, not_checked, errored, retracted } }. `not_checked` counts entries declined before a verdict (no identifier, container-only identifier, too sparse) — report them as unverified, never as suspect. Reading the result: `index` is 1-BASED (entry 1 is the first reference) — do not add 1 again when reporting it. `sourceKey` is the entry's own key in the source file (BibTeX cite key, RIS `ID`, CSL-JSON `id`) and is the reliable way to point a user at the offending reference; it is absent on the claims[] path. `entries` and `parseErrors` share one index space, so a given input position appears in exactly one of them — report parseErrors as UNCHECKED, never as clean. `summary.total` counts verifiable entries only, excluding parseErrors and anything past the cap; `summary.retracted` is a separate axis from the verdict counts (an entry can be both matched and retracted), so never sum those fields. A non-zero `truncated` means the audit is incomplete — split the bibliography and call again. Per-entry leniency: one entry that fails to resolve becomes status:'error' without failing the batch. This audits citation IDENTITY (does each identifier resolve to the claimed work, and is it retracted) — it does NOT check whether a source supports the claim it is cited for. Read-only and idempotent. Works anonymously for the non-LLM path; SCHOLAR_API_KEY (a free ssk_ key from https://scholar-sidekick.com/account) or a paid RapidAPI tier raises rate limits and enables the optional LLM screen.","write_action":false,"price_micros":0,"input_schema":{"type":"object","properties":{"bibliography":{"description":"Raw bibliography text to parse and audit — BibTeX, RIS, or CSL-JSON. Provide EITHER this or `claims`, not both. Format is auto-detected from the content; override with `format`. Capped at 25 entries per call (excess is dropped and reported via `truncated`).","type":"string","maxLength":131072},"format":{"description":"Override format auto-detection for `bibliography`.","type":"string","enum":["bibtex","ris","csl-json"]},"claims":{"description":"Pre-parsed citations to audit — an alternative to `bibliography` for agents that already hold structured references. Each needs a `title` plus whatever identifiers the citation carries.","maxItems":25,"type":"array","items":{"type":"object","properties":{"title":{"description":"Title exactly as the citation claims it. Required — the audit compares this against the title of the record the identifier actually resolves to, and that comparison is the fabrication check.","type":"string","maxLength":2000},"doi":{"description":"DOI as cited, with or without a prefix ('10.1038/nphys1170' or a doi.org URL).","type":"string","maxLength":200},"pmid":{"description":"PubMed ID, digits only or 'PMID:' prefixed.","type":"string","maxLength":50},"pmcid":{"description":"PubMed Central ID, e.g. 'PMC1234567'.","type":"string","maxLength":50},"isbn":{"description":"ISBN-10 or ISBN-13; hyphens are tolerated.","type":"string","maxLength":50},"arxiv":{"description":"arXiv ID, e.g. '2301.00001' or 'arXiv:2301.00001'.","type":"string","maxLength":50},"issn":{"description":"ISSN of the containing journal. Identifies a container, not a paper, so it cannot resolve an entry on its own — supply it alongside another identifier.","type":"string","maxLength":50},"ads":{"description":"NASA ADS bibcode, e.g. '2019A&A...625A.135L'.","type":"string","maxLength":50},"whoIrisUrl":{"description":"WHO IRIS publication URL.","type":"string","maxLength":2000},"author":{"description":"First-author family name as cited. Refines the comparison; a disagreement here can downgrade a verdict to 'ambiguous'.","type":"string","maxLength":200},"year":{"description":"Publication year as cited. Refinement only — it never decides a verdict alone.","type":"integer","minimum":0,"maximum":9999},"container":{"description":"Journal or book title as cited. Refinement only, same role as `year`.","type":"string","maxLength":500}},"required":["title"]}},"checks":{"description":"Per-entry enrichment checks. Defaults to ['retraction'] (flags retracted / corrected / expression-of-concern works via Crossref + Retraction Watch, keyed on each resolved DOI). Pass [] to skip the retraction lookup.","type":"array","items":{"type":"string","enum":["retraction"]}},"screenWithLlm":{"description":"Opt-in Stage 3 LLM screen applied per entry (same gating as verifyCitation: authenticated first-party key or paid RapidAPI tier). Default false.","type":"boolean"},"semanticTitle":{"description":"Opt-in semantic title check applied per entry (any tier; see verifyCitation). Default false.","type":"boolean"}},"$schema":"http://json-schema.org/draft-07/schema#"}},{"name":"checkOpenAccess","description":"Check whether a single scholarly work is openly accessible and where to find the best legal version. Use when the user asks 'is this open access?', 'where can I read this for free?', or wants the OA license/version before reusing or redistributing. Sourced from Unpaywall. Resolves DOI/PMID/PMCID/arXiv/ISBN/ADS inputs to a DOI before lookup; inputs that don't map to a DOI return doi=null and reason='no_doi'. arXiv inputs check the linked published-journal DOI when arXiv records one; a preprint without one returns doi=null and reason='no_doi' (Unpaywall does not index arXiv preprints, which are freely readable on arXiv regardless). Single identifier per call — does NOT accept comma/newline batches; loop one call per identifier for multiple papers. Returns: { doi, resolvedFrom?, reason?, result } where result has isOa (boolean), oaStatus ('gold' | 'green' | 'hybrid' | 'bronze' | 'closed'), title, bestLocation ({url, hostType: 'publisher' | 'repository', license, version: 'submittedVersion' | 'acceptedVersion' | 'publishedVersion'} or null), and locations (array of the same shape); result is null when no DOI could be resolved and reason explains why ('no_doi'). No sibling tool overlaps this — resolveIdentifier returns metadata but not OA status. Read-only and idempotent — safe to retry. Works anonymously against the public Scholar Sidekick API (rate-limited free tier); set SCHOLAR_API_KEY (a free ssk_ key from https://scholar-sidekick.com/account) for higher limits, or RAPIDAPI_KEY for paid RapidAPI tiers. Rate limits follow your tier; Unpaywall is queried server-side with its own caching.","write_action":false,"price_micros":0,"input_schema":{"type":"object","properties":{"id":{"description":"A single scholarly identifier to check. 1–500 characters. Non-DOI inputs are resolved to a DOI server-side before the lookup; if no DOI can be derived, the tool returns doi=null with reason='no_doi'. Pass exactly one identifier — comma/newline batches are NOT accepted by this tool; loop one call per identifier for multiple papers. Accepted: DOI, PMID, PMCID, arXiv ID, ISBN, or NASA ADS bibcode (with or without prefixes).","type":"string","minLength":1,"maxLength":500}},"required":["id"],"$schema":"http://json-schema.org/draft-07/schema#"}},{"name":"checkRetraction","description":"Check whether a single scholarly work has been retracted, corrected, or had an expression of concern raised. Use when the user asks 'has this paper been retracted?' or wants to verify a paper's standing before citing it (clinical, regulatory, evidence-synthesis contexts). To check a WHOLE reference list for retractions (e.g. 'check all these citations for retractions' at the end of a literature review, a guideline or a systematic review), use auditBibliography instead — one call runs the retraction check plus the fabrication check on up to 25 entries. Sourced from Crossref `updated-by` (which mirrors Retraction Watch). Resolves DOI/PMID/PMCID/arXiv/ADS inputs to a DOI before lookup; ISBN inputs always return doi=null and reason='no_doi' since books are not in the retraction graph. arXiv inputs check the linked published-journal DOI when arXiv records one; a preprint without one returns doi=null and reason='no_doi' (preprints are outside the Crossref retraction graph — arXiv marks withdrawals on the abstract page instead). Single identifier per call — does NOT accept comma/newline batches; for a handful of papers loop one call per identifier, for a bibliography use auditBibliography. Returns: { doi, resolvedFrom?, reason?, result } where result has isRetracted, hasCorrections, hasConcern (booleans), notices (array of {type, label, doi, date, source} where type is a raw Crossref update type such as 'retraction', 'correction', 'erratum' or 'expression_of_concern'), and title; result is null when no DOI could be resolved and reason explains why ('no_doi'). resolveIdentifier returns metadata but not retraction status; auditBibliography includes this check for every entry of a bibliography. Read-only and idempotent — safe to retry. Works anonymously against the public Scholar Sidekick API (rate-limited free tier); set SCHOLAR_API_KEY (a free ssk_ key from https://scholar-sidekick.com/account) for higher limits, or RAPIDAPI_KEY for paid RapidAPI tiers. Rate limits follow your tier; Crossref is queried server-side with its own caching.","write_action":false,"price_micros":0,"input_schema":{"type":"object","properties":{"id":{"description":"A single scholarly identifier to check. 1–500 characters. Non-DOI inputs are resolved to a DOI server-side before the lookup; if no DOI can be derived, the tool returns doi=null with reason='no_doi'. Pass exactly one identifier — comma/newline batches are NOT accepted by this tool; loop one call per identifier for multiple papers. Accepted: DOI, PMID, PMCID, arXiv ID, or NASA ADS bibcode (with or without prefixes). ISBN inputs are accepted but always return doi=null since books are not in the retraction graph.","type":"string","minLength":1,"maxLength":500}},"required":["id"],"$schema":"http://json-schema.org/draft-07/schema#"}},{"name":"exportCitation","description":"Export scholarly identifiers to a bibliography file format ready to write to disk or paste into a reference manager. Use when the user wants a file (.bib, .ris, .nbib, .xml, .rdf, .csv) for Zotero, Mendeley, EndNote, RefWorks, BibTeX/LaTeX, Pandoc, or Excel. Format parameter is required: bib (BibTeX — LaTeX), ris (RIS — most widely supported by reference managers), csl (CSL JSON — Pandoc/Quarto), endnote-xml, endnote-refer, refworks, medline (NBIB — PubMed round-trips, clinical workflows), zotero-rdf, csv (spreadsheet-friendly), or txt (plain-text bibliography rendered with the optional style parameter — txt is the only format that uses style; the others have their own structured shape and ignore it). Accepts the same identifier formats as resolveIdentifier (DOI/PMID/PMCID/ISBN/arXiv/ISSN/ADS/WHO IRIS, prefixes tolerated), single or comma/newline-separated batch — one round trip per call. Returns: { content: string, format: string } where content is the entire bibliography in the requested format as a single string — write it to a file (.bib/.ris/.nbib/etc.) or paste it directly into the target tool. Use formatCitation instead when the user wants in-line citation text (manuscript, slide); use resolveIdentifier when they want raw structured metadata. Read-only and idempotent — safe to retry. Works anonymously against the public Scholar Sidekick API (rate-limited free tier); set SCHOLAR_API_KEY (a free ssk_ key from https://scholar-sidekick.com/account) for higher limits, or RAPIDAPI_KEY for paid RapidAPI tiers. Rate limits follow your tier.","write_action":false,"price_micros":0,"input_schema":{"type":"object","properties":{"text":{"description":"One or more identifiers (DOIs, PMIDs, ISBNs, etc.) separated by newlines or commas","type":"string"},"format":{"description":"Export format","type":"string","enum":["bib","ris","csv","csl","endnote-refer","endnote-xml","refworks","medline","zotero-rdf","txt"]},"style":{"description":"Citation style (used only for txt export)","type":"string"},"lang":{"description":"Locale for formatting (e.g. en-US)","type":"string"}},"required":["text","format"],"$schema":"http://json-schema.org/draft-07/schema#"}},{"name":"formatCitation","description":"Format scholarly identifiers into a finished citation in a specific style. Use when the user wants a paste-ready citation string for a manuscript, slide, message, footnote, or in-line reference. Style defaults to vancouver if unspecified; ask the user before defaulting if any ambiguity exists (e.g. 'Harvard' and 'Chicago' have multiple variants — confirm which one). Supports five hand-tuned builtins (vancouver, ama, apa, ieee, cse) plus any of 10,000+ CSL style IDs (chicago-author-date, harvard-cite-them-right, modern-language-association, nature, bmj, the-lancet, etc.). Alias and dependent-style resolution apply, so 'harvard' resolves to 'harvard-cite-them-right' and the canonical ID is reported back as styleUsed. Output defaults to text; pass output=html for marked-up HTML or output=json for structured CSL items. Accepts the same identifier formats as resolveIdentifier (DOI/PMID/PMCID/ISBN/arXiv/ISSN/ADS/WHO IRIS, prefixes tolerated), single or comma/newline-separated batch — one round trip per call. Returns: one of { text, html, items } depending on the output parameter, followed by a metadata block ({formatter: 'builtin' | 'csl', styleUsed, requestId, warnings?}) appended as a second text content item — surface this to the user when they care about reproducibility. Use resolveIdentifier instead when the user wants raw metadata to inspect or transform; use exportCitation when they want a downloadable bibliography file. Read-only and idempotent — safe to retry. Works anonymously against the public Scholar Sidekick API (rate-limited free tier); set SCHOLAR_API_KEY (a free ssk_ key from https://scholar-sidekick.com/account) for higher limits, or RAPIDAPI_KEY for paid RapidAPI tiers. Rate limits follow your tier.","write_action":false,"price_micros":0,"input_schema":{"type":"object","properties":{"text":{"description":"One or more identifiers (DOIs, PMIDs, ISBNs, arXiv IDs, etc.) separated by newlines or commas","type":"string"},"style":{"description":"Citation style: vancouver (default), ama, apa, ieee, cse, or any CSL style ID","type":"string"},"lang":{"description":"Locale for formatting (e.g. en-US, en-GB, fr-FR)","type":"string"},"footnote":{"description":"Format as footnotes instead of bibliography entries","type":"boolean"},"output":{"description":"Output format (default: text)","type":"string","enum":["text","html","json"]}},"required":["text"],"$schema":"http://json-schema.org/draft-07/schema#"}},{"name":"resolveIdentifier","description":"Resolve scholarly identifiers to structured CSL JSON metadata (title, authors, journal, year, identifiers). Use when the user wants raw bibliographic data to inspect, transform, or feed into another tool — not a formatted citation. Common single-shot conversions: PMID → PMCID, arXiv → DOI, ISBN → CSL JSON, WHO IRIS URL → structured metadata. Accepts DOI, PMID, PMCID, ISBN, arXiv ID, ISSN, NASA ADS bibcode, or WHO IRIS URL, with or without prefixes (PMID:, arXiv:, ISBN hyphens, https://doi.org/...). Pass a single identifier or a comma/newline-separated batch — one round trip per call. Returns: a JSON array of CSL items, each with id, type, title, author[], issued.date-parts, container-title, DOI/PMID/PMCID/ISBN/ISSN/URL when available. Use formatCitation instead when the user wants a finished citation string in a specific style; use exportCitation when they want a downloadable bibliography file. Read-only and idempotent — safe to retry. Works anonymously against the public Scholar Sidekick API (rate-limited free tier); set SCHOLAR_API_KEY (a free ssk_ key from https://scholar-sidekick.com/account) for higher limits, or RAPIDAPI_KEY for paid RapidAPI tiers. Rate limits follow your tier; the underlying REST API caches repeated identical requests and surfaces cache state in the x-scholar-cache response header.","write_action":false,"price_micros":0,"input_schema":{"type":"object","properties":{"text":{"description":"One or more identifiers to resolve (DOIs, PMIDs, PMCIDs, ISBNs, arXiv IDs, ISSNs, ADS bibcodes) separated by newlines or commas","type":"string"}},"required":["text"],"$schema":"http://json-schema.org/draft-07/schema#"}},{"name":"verifyCitation","description":"Verify a claimed citation against the resolved record at its identifier. Detects the dominant AI-driven fabrication pattern documented by Topaz et al. (Lancet 2026): a real, resolvable identifier (DOI / PMID / PMCID / arXiv / etc.) paired with a title that does NOT correspond to the paper at that identifier. Use when the user pastes a citation and asks 'is this real?' or 'check this DOI' — most fabricated citations resolve cleanly under doi.org but their cited title and the resolved title disagree. Single citation per call. Required: `title` plus exactly one identifier (doi, pmid, pmcid, isbn, arxiv, issn, ads, or whoIrisUrl). Optional refinements: author (first-author family name), year, container (journal). Set `screenWithLlm: true` to invoke the Stage 3 LLM screen on low-confidence mismatches (catches informal-abbreviation false positives); LLM access is gated to authenticated first-party keys and paid RapidAPI tiers — anonymous callers get 400 LLM_SCREEN_FORBIDDEN. Returns: { verdict: 'matched' | 'mismatch' | 'not_found' | 'ambiguous', confidence: 'high' | 'medium' | 'low', matched: <resolved record or null>, mismatches: [{field, claimed, resolved, similarity}], candidates: [{item, registries, score}] (when title-search ran), _provenance: {stages_run, resolved_via, registries_searched, llm_screen} }. Verdict semantics: 'matched' = claim agrees with resolved record; 'mismatch' = identifier resolves but title does not match (Topaz fabrication pattern); 'ambiguous' = identifier resolves to one paper but the claimed title matches a DIFFERENT paper found via title-search (CITADEL 'citation error' subtype — wrong identifier for a real paper); 'not_found' = neither the identifier nor the title resolves anywhere. No sibling tool overlaps: resolveIdentifier returns metadata for a known-good identifier; verifyCitation is the only tool that cross-checks claimed title vs resolved metadata. Read-only and idempotent — safe to retry. Works anonymously for the non-LLM path; the Stage 3 LLM screen requires authentication — set SCHOLAR_API_KEY (a free ssk_ key from https://scholar-sidekick.com/account) or use a paid RapidAPI tier. SCHOLAR_API_KEY also raises your rate limit.","write_action":false,"price_micros":0,"input_schema":{"type":"object","properties":{"title":{"description":"The title as it appears in the cited reference. This is the field the verifier cross-checks against the resolved record at the supplied identifier. Required.","type":"string","minLength":1,"maxLength":2000},"doi":{"description":"DOI as cited (with or without https://doi.org/ prefix). Provide whichever identifier(s) the cited reference carries; the verifier uses the first one in priority order doi > pmid > pmcid > arxiv > ads > isbn > issn > whoIrisUrl.","type":"string","maxLength":200},"pmid":{"description":"PubMed ID as cited (digits only, or with 'PMID:' prefix).","type":"string","maxLength":50},"pmcid":{"description":"PubMed Central ID (e.g. 'PMC1234567' or 'PMCID:1234567').","type":"string","maxLength":50},"isbn":{"description":"ISBN (10- or 13-digit, hyphens tolerated).","type":"string","maxLength":50},"arxiv":{"description":"arXiv ID (e.g. '2301.08745' or 'arXiv:2301.08745'; old-style 'hep-ph/0501023' accepted).","type":"string","maxLength":50},"issn":{"description":"ISSN for journal-level resolution.","type":"string","maxLength":50},"ads":{"description":"NASA ADS bibcode (19 chars).","type":"string","maxLength":50},"whoIrisUrl":{"description":"WHO IRIS URL (https://iris.who.int/...).","type":"string","maxLength":2000},"author":{"description":"First-author family name as cited. Refines the verdict — a title-vs-resolved-title match plus an author mismatch raises suspicion of fabrication. Pass only the family name (e.g. 'Topaz', not 'Topaz, Maxim').","type":"string","maxLength":200},"year":{"description":"Publication year as cited. Wrong year alone does not flip the verdict, but >=2-year gap from the resolved record lowers confidence.","type":"integer","minimum":0,"maximum":9999},"container":{"description":"Journal or container name as cited (e.g. 'The Lancet', 'Neuroscience'). Soft signal — surfaced as a mismatch field but does not gate the verdict.","type":"string","maxLength":500},"screenWithLlm":{"description":"Opt-in Stage 3 LLM screen. Fires only when the pre-LLM verdict is mismatch with low confidence (the informal-abbreviation false-positive bucket). Gated: requires an authenticated first-party API key or a paid RapidAPI tier; anonymous / free callers receive 400 LLM_SCREEN_FORBIDDEN. Default false.","type":"boolean"},"semanticTitle":{"description":"Opt-in semantic title check (any tier). On a string-level matched verdict, a calibrated model judgment of whether the claimed and resolved titles describe the same work; catches one-word swaps in long titles that string similarity misses. A flagged title moves matched → ambiguous (review), never mismatch. Not byte-deterministic — _provenance.semantic_title carries the probability. Default false.","type":"boolean"}},"required":["title"],"$schema":"http://json-schema.org/draft-07/schema#"}}],"scan":{"score":86,"grade":"A","scanned_at":"2026-10-16T17:09:36.773Z","report":{"scannerVersion":"0.1.10","scannedAt":"2026-10-16T17:09:36.722Z","components":{"code":{"score":20,"max":25,"notes":["3 source files scanned"]},"reliability":{"score":20,"max":20,"notes":["remote reachable in 759ms"]},"poisoning":{"score":13,"max":15,"notes":["7 tool descriptions checked"]},"auth":{"score":10,"max":15,"notes":["open endpoint, read-only tools"]},"maintenance":{"score":15,"max":15,"notes":["last push 1 days ago"]},"identity":{"score":8,"max":10,"notes":["registry namespace matches repository owner","GitHub account older than a year"]}},"findings":[{"id":"exec.eval","severity":"medium","component":"code","title":"eval / new Function used","evidence":"dist/mcp-server.mjs: …ode, sch); const makeValidate = new Function(`${names_1.default.self}`, `${names_1.de…"},{"id":"poison.long-description","severity":"low","component":"poisoning","title":"Unusually long tool description (over 2,000 characters)","evidence":"tool verifyCitation: …Verify a claimed citation against the resolved record at its identifier. Detects the dominant AI-driven fabrication pattern documented by Topaz et al. (Lancet 2026): a real, resolvable identifier (DOI / PMID / PMCID / arXiv / etc.) paired with a title that does NOT correspond to the paper at that identifier. Use when the user pastes a citation and asks 'is this real?' or 'check this DOI' — most fabricated citations resolve cleanly under doi.org but their cited title and the resolved title disagree. Single citation per call. Required: `title` plus exactly one identifier (doi, pmid, pmcid, isbn, arxiv, issn, ads, or whoIrisUrl). Optional refinements: author (first-author family name), year, container (journal). Set `screenWithLlm: true` to invoke the Stage 3 LLM screen on low-confidence mismatches (catches informal-abbreviation false positives); LLM access is gated to authenticated first-party keys and paid RapidAPI tiers — anonymous callers get 400 LLM_SCREEN_FORBIDDEN. Returns: { verdict: 'matched' | 'mismatch' | 'not_found' | 'ambiguous', confidence: 'high' | 'medium' | 'low', matched: <resolved record or null>, mismatches: [{field, claimed, resolved, similarity}], candidates: [{item, registries, score}] (when title-search ran), _provenance: {stages_run, resolved_via, registries_searched, llm_screen} }. Verdict semantics: 'matched' = claim agrees with resolved record; 'mismatch' = identifier resolves but title does not match (Topaz fabrication pattern); 'ambiguous' = identifier resolves to one paper but the claimed title matches a DIFFERENT paper found via title-search (CITADEL 'citation error' subtype — wrong identifier for a real paper); 'not_found' = neither the identifier nor the title resolves anywhere. No sibling tool overlaps: resolveIdentifier returns metadata for a known-good identifier; verifyCitation is the only tool that cross-checks claimed title vs resolved metadata. Read-only and idempotent — safe to retry. Works anonymously for the non-LLM path; the Stage 3 LLM screen requires authentication — set SCHOLAR_API_KEY (a free ssk_ key from https://scholar-sidekick.com/account) or use a paid RapidAPI tier. SCHOLAR_API_KEY also raises your rate limit.…"}],"inputs":{"probes":[{"url":"https://scholar-sidekick.com/api/mcp","reachable":true,"authRequired":false,"latencyMs":759,"serverInfo":{"name":"scholar-sidekick","version":"0.8.13"}}],"packages":[{"registryType":"npm","identifier":"scholar-sidekick-mcp","version":"0.8.13","found":true,"license":"MIT","hasInstallScripts":false,"dependencyCount":2,"publishedAt":"2026-10-15T22:07:57.906Z","repositoryUrl":"git+https://github.com/mlava/scholar-sidekick-mcp.git","weeklyDownloads":389}],"repo":{"found":true,"owner":"mlava","repo":"scholar-sidekick-mcp","archived":false,"pushedAt":"2026-10-15T22:06:34Z","stars":11,"forks":0,"openIssues":0,"ownerType":"User","ownerAvatarUrl":"https://avatars.githubusercontent.com/u/6857790?v=4","ownerCreatedAt":"2014-03-05T04:11:37Z","license":"MIT"},"icon":{"url":"https://scholar-sidekick.com/icon-512.png","source":"registry","width":512,"height":512},"presence":{"stars":11,"forks":0,"downloadsWeek":389,"license":"MIT","lastPushAt":"2026-10-15T22:06:34.000Z","score":46}}}},"grade_history":[],"reviews":[]}