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Password Breach Check MCP server

by mrfentmen·io.github.mrfentmen/password-breach-check-mcp·v1.0.0
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Check if a password has appeared in known breaches without sending the password. No key required.

C65/100grade C
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Safety scan
C65/100

full report

Adoption
Not measured yet

Usage numbers are collected on the next scan

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

Password Breach Check tools (2)

write = sends, deletes, buys or posts

Read from the package source without running it. The installed server may list more.

  • check_hash

    Check a SHA1 password hash prefix.

  • check_password

    Check if a password appears in known breaches.

Public scan report

scanner v0.1.9 · 2026-09-22 · same rubric, same numbers if you re-run it

no findings
  • Code scan5 source files scanned25/25
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitylocal package, no credentials required12/15
  • Maintenancerepository not readable: repo not found3/15
  • Maintainer identityno repository or website to verify2/10
Overall 65/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

Install directly

Runs npx -y password-breach-check-mcp on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add password-breach-check-mcp -- npx -y password-breach-check-mcp
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Password Breach Check: common questions

Is Password Breach Check MCP server safe?
With care: it is graded C, so read the findings first (65/100). Read the Password Breach Check safety report
How do I install Password Breach Check?
It runs on your machine. Copy the Claude Code, Claude Desktop or Cursor config from the install section.
Does Password Breach Check need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Password Breach Check maintained?
The latest release is v1.0.0.
What can I use instead of Password Breach Check?
Servers from other publishers that do the same job: XActions MCP server.

Alternatives to Password Breach Check

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

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