Mmcp.market

Citation Check MCP server

by SecondStageTurbine·io.github.SecondStageTurbine/citation-check·v1.0.0
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Does a cited URL exist, and does the source name what your claim names? Two answers.

C67/100grade C
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Safety scan
C67/100

full report

Adoption
New

Little public usage data yet

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

Citation Check tools (2)

write = sends, deletes, buys or posts
  • check_citationFree

    Fetch a URL and report whether it exists, and whether the source names the same entity as the claim you attach to it. These are two different questions and conflating them is the failure this exists to catch: a URL can return 200 and describe a different gene entirely. No account needed, nothing is stored about you.

  • verdict_meaningsFree

    The exact semantics of every status and relevance value, including what this checker cannot determine. Read once before trusting a verdict.

Public scan report

scanner v0.1.9 · 2026-09-23 · same rubric, same numbers if you re-run it

1 low
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 513ms20/20
  • Tool poisoning2 tool descriptions checked15/15
  • Auth qualityopen endpoint, read-only tools10/15
  • Maintenanceno repository listed3/15
  • Maintainer identityno repository or website to verify2/10

Findings (1)

  • lowNo source repository listedmaint.no-repo
Overall 67/100. 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 citation-check https://exmachina-ai.fly.dev/verify
Add to Cursor

Citation Check: common questions

Is Citation Check MCP server safe?
With care: it is graded C, so read the findings first (67/100). Read the Citation Check safety report
How do I install Citation Check?
It runs remotely at exmachina-ai.fly.dev. 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 Check need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Citation Check maintained?
The latest release is v1.0.0.
Is Citation Check up?
100% of our last 20 checks got an answer. We check remote servers about four times a day.
What can I use instead of Citation Check?
Servers from other publishers that do the same job: Citra MCP server.

Alternatives to Citation Check

Same job from other publishers: the closest match first, then the best rated.

  • Citra
    Citra — PDF answers with page-level proof: structure, tables, OCR, and page citations.
    A

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