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Citation Safe Verifier MCP server

by citationsafe.com·com.citationsafe/verifier·v1.0.0
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Verifies legal citations vs primary sources: existence, quote match, proposition support.

C57/100grade C
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Safety scan
C57/100

full report

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If you have run it, two minutes of your experience saves the next person an afternoon.

Citation Safe Verifier tools (8, 2 write)

write = sends, deletes, buys or posts
  • batch_verify_citationswrite actionFree

    Runs the same 3-layer citation verification as verify_citation across multiple texts in a single call. Each item is billed against your CitationSafe usage exactly like an individual verify_citation call — batching never bypasses your plan's monthly limit. Max 10 items per batch, 64,000 characters per item. Requires a signed-in CitationSafe account (Authorization: Bearer <access_token>) — anonymous batch calls are not supported, use verify_citation for anonymous single-text checks.

  • get_verificationFree

    Retrieves a previously run CitationSafe verification (by the verificationId returned from verify_citation/verify_document, or from a citationsafe.com/v/{id} share link) and returns its full per-citation results.

  • is_this_case_realFree

    Deterministic existence check (Layer 1 only, no LLM) for one legal citation against CourtListener's primary-source database. Answers the single question "is this case real" for one citation — for multi-citation quote-checked verdicts across a whole brief, use verify_brief instead. Free tier: 5 checks/day per IP, no key required. For unlimited access, pass an API key as "Authorization: Bearer <key>" (contact support@citationsafe.com to request one).

  • search_phantomsFree

    Searches CitationSafe's phantom-citation registry — fabricated case names/citations that have shown up in real, sanctioned AI-hallucination incidents — by case name or the AI system that produced them. Read-only, public data. Returns an empty array (not an error) if nothing matches or the registry has no entries yet.

  • search_sanctionsFree

    Searches CitationSafe's database of real court sanctions/orders arising from AI-hallucinated legal citations, by court name, party/case name keyword, or free-text keyword. Read-only, public data — same dataset backing citationsafe.com/sanctions-database.

  • verify_briefwrite actionFree

    Runs existence (Layer 1) and quote-match (Layer 2) checks — both deterministic, no LLM — on every citation found in the given text and returns one verdict per citation. The multi-citation counterpart to is_this_case_real. Proposition support (Layer 3) is not included on this free/API-key surface; sign in at citationsafe.com for full 3-layer verification via verify_citation. Free tier: 5 checks/day per IP (one verify_brief call = one check, regardless of how many citations the text contains); an API key bypasses the daily cap.

  • verify_citationFree

    Checks every legal citation in the given text against primary sources: does the cited case exist (Layer 1, CourtListener database lookup — deterministic, no LLM), does a quoted passage appear in the source opinion (Layer 2), and — on paid CitationSafe tiers — does the case support the proposition it's cited for (Layer 3). Returns VERIFIED / UNCONFIRMED / UNCONFIRMED — OUTSIDE COVERAGE / SOURCE UNAVAILABLE per citation, never a bare true/false, with source links. Not legal advice.

  • verify_documentFree

    Fetches a document (PDF, DOCX, or plain text) from a URL and runs the same 3-layer citation verification as verify_citation. Use this when you have a link to a brief rather than pasted text.

Public scan report

scanner v0.1.9 · 2026-09-25 · same rubric, same numbers if you re-run it

1 high
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 1606ms20/20
  • Tool poisoning8 tool descriptions checked15/15
  • Auth qualityopen endpoint exposes 2 write-action tools with no auth3/15
  • Maintenancerepository not readable: repo not found3/15
  • Maintainer identityno repository or website to verify2/10

Findings (1)

  • highWrite-action tools reachable without authenticationauth.open-write
Overall 57/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

Install directly

claude mcp add --transport http verifier https://citationsafe.com/api/mcp
Add to Cursor

Citation Safe Verifier: common questions

Is Citation Safe Verifier MCP server safe?
With care: it is graded C, so read the findings first (57/100). Read the Citation Safe Verifier safety report
How do I install Citation Safe Verifier?
It runs remotely at citationsafe.com. Add it to Claude Code, Claude Desktop or Cursor with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Citation Safe Verifier need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Citation Safe Verifier maintained?
The latest release is v1.0.0.
Is Citation Safe Verifier up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.

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