Mmcp.market

Lenz Fact-Check MCP server

by lenz.io·io.lenz/fact-check·v1.1.0
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Check the factual claims in a draft or an answer: a quick verdict, or a deep check with sources.

A92/100grade A
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Safety scan
A92/100

full report

Adoption
Growing

0 stars

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

Lenz Fact-Check tools

Tool list not cached yet. `describe` through the gateway fetches it live.

Public scan report

scanner v0.1.5 · 2026-09-19 · same rubric, same numbers if you re-run it

no findings
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 311ms (auth required)20/20
  • –Tool poisoningtools not inspected (endpoint requires auth); not countedn/a
  • Auth qualityOAuth resource metadata advertised on 40115/15
  • Maintenancelast push 0 days ago15/15
  • Maintainer identitynamespace and repository owner differ; website matches verified namespace5/10
Overall 92/100. 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 fact-check https://lenz.io/mcp
Add to Cursor

Lenz Fact-Check: common questions

Is Lenz Fact-Check MCP server safe?
Yes, by our scan: it is graded A (92/100). Read the Lenz Fact-Check safety report
How do I install Lenz Fact-Check?
It runs remotely at lenz.io. 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 Lenz Fact-Check need an API key?
No key to paste: it signs you in with OAuth when your client connects.
Is Lenz Fact-Check maintained?
The last commit was in the last day (2026-09-19). The latest release is v1.1.0.
Is Lenz Fact-Check up?
100% of our last 5 checks got an answer. We check remote servers about four times a day.

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