MeSquared Visibility

io.github.rmach816/mesquared-mcp-serverrmach816streamable-httpv0.2.4Scanned 22 hours ago

Public-site SEO/AEO readiness scans with evidence scores, issues, and clear measurement scope.

3 tools: 2 change things and 1 only read.

Reads private data · 0
Reads text others write · 3
Can send data out · 1
2 findings

Tools listed without sign-in. Remote posture

Anlyon alternative

2 of these tools change something. Run those as governed actions.

Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.

Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.

Import an OpenAPI spec →

Tools

Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.

3 tools

Changes things 2Creates or changes something that can be changed back.Claude Code: ask

compare_visibilityRun public-site SEO/AEO website-readiness scans for two business websites and compare aggregate scores, selected evidence, site signals, and top issues.Reads text others write1 finding
Why it is in this group
- The name "compare_visibility" says "compare": a word for reading.
- The description's first verb is "run": a word for a change.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
- untrusted-inputThe description's first sentence says "run" and "website": it reads web pages, which anyone can write.
Findings
- Warn
  The server marks "compare_visibility" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
  Matched text
  annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "compare_visibility" says "compare": a word for reading.
  What this check looks for
Description, as the server wrote it
Run public-site SEO/AEO website-readiness scans for two business websites and compare aggregate scores, selected evidence, site signals, and top issues. This is a readiness comparison, not observed rank or live citation benchmarking.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
scan_visibilityRun a public-site SEO/AEO website-readiness scan for one business website.Reads text others writeCan send data out1 finding
Why it is in this group
- The description's first verb is "run": a word for a change.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
- outboundThe input takes a URL (input.url): a request to a URL can carry data to whoever runs it.
Findings
- Warn
  The server marks "scan_visibility" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
  Matched text
  annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The description's first verb is "run": a word for a change.
  What this check looks for
Description, as the server wrote it
Run a public-site SEO/AEO website-readiness scan for one business website. Returns aggregate readiness scores, selected technical and answer-quality evidence, site signals, and prioritized issues. This does not measure observed rankings, Search Console performance, or live AI mentions/citations.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true

Only reads 1Looks things up and changes nothing.Show 1 read-only tool

visibility_audit_infoExplain the MeSquared SEO/AEO website-readiness methodology, its measurement boundaries, and how to use the available scan tools.Reads text others writeNo findings
Why it is in this group
- The description's first verb is "explain": a word for reading.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Explain the MeSquared SEO/AEO website-readiness methodology, its measurement boundaries, and how to use the available scan tools.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Exfil surface

Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.

No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data.

Reads private data0: Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write3: Brings in text someone else can write: web pages, inbound email, messages, issues and comments.; compare_visibility
scan_visibility
visibility_audit_info
Can send data out1: Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.; scan_visibility

Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.

Remote posture

What anyone on the internet sees at the remote endpoint: an anonymous initialize and tools/list, and the public OAuth metadata.

Tools listed without sign-in

Looked at Oct 22, 2026, 15:04 UTC, unchanged since Oct 22, 2026. No credentials were sent and no tool was called. What is looked at.

Reachable: yes
HTTP status of an anonymous initialize: 200
tools/list served without credentials: yes
Tools that change things, listed without credentials: 2
Protocol version: 2025-06-18
WWW-Authenticate on 401: not observed
resource_metadata in WWW-Authenticate: not observed
RFC 9728 protected resource metadata: not observed
Authorization servers: not observed
Legacy HTTP+SSE transport: no
Dynamic client registration: not observed
Client ID metadata documents: not observed

WarnThe whole server
The endpoint served tools/list without credentials, and the list has 2 tools that change things (2 write). Whether a call also works without credentials was not tested: tools are never called.
Matched text
https://mesquared-mcp-server.vercel.app/mcp: tools/list returned 3 tools to an anonymous client, including scan_visibility (write), compare_visibility (write)
What this check looks for

Findings

Matches of fixed checks, with the text they matched.

2 warn

Warnscan_visibility
The server marks "scan_visibility" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
Matched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The description's first verb is "run": a word for a change.
What this check looks for
Warncompare_visibility
The server marks "compare_visibility" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
Matched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "compare_visibility" says "compare": a word for reading.
What this check looks for

History

Changes to its tool definitions and to its remote endpoint, newest first.

No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.

All changes to this server

Install

Pinned to version 0.2.4. Values in angle brackets are yours to fill in.

claude mcp add --transport http mesquared https://mesquared-mcp-server.vercel.app/mcp

claude mcp add --transport http mesquared https://mesquared-mcp-server.vercel.app/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json

{
  "permissions": {
    "allow": [
      "mcp__mesquared__visibility_audit_info"
    ],
    "ask": [
      "mcp__mesquared__scan_visibility",
      "mcp__mesquared__compare_visibility"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as mesquared. Review it before you use it.

Capability tags behind 3 rules

mcp__mesquared__visibility_audit_info untrusted-input
mcp__mesquared__scan_visibility untrusted-input, outbound
mcp__mesquared__compare_visibility untrusted-input

Keep the decision: fail CI when the tools change, follow every change, or show a badge.

Pin in CI

Fail a build when the tools you reviewed are not the tools the server serves today.

curl -s "https://anlyon.dev/api/v1/servers/io.github.rmach816/mesquared-mcp-server/verify?hash=c43574ce8c11fdf66a27f3ea9b2acf0c43a2686ee5be5f2fe6cf0777a06ac2f7" | jq -e '.changed == false'

Pinned hash c43574ce8c11, from Oct 21, 2026, 19:26 UTC.

Watch

Get told when its tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/io.github.rmach816/mesquared-mcp-server/changes.xml

An Atom feed. Works in any feed reader or Slack's RSS app.

Badge

[![anlyon.dev](https://anlyon.dev/badge/io.github.rmach816/mesquared-mcp-server.svg)](https://anlyon.dev/servers/io.github.rmach816/mesquared-mcp-server)

Source: MCP Registry · repository. Synced Oct 21, 2026, 18:46 UTC.