TheFaceAnalysis

com.thefaceanalysis/face-analysisthefaceanalysis.comstreamable-httpv0.1.0Scanned 52 minutes ago

Face shape rules and a 102-face open measurement dataset. Read-only, no photos.

7 tools: 1 change things and 6 only read.

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

Anlyon alternative

1 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.

7 tools

Changes things 1Creates or changes something that can be changed back.Claude Code: ask

classify_face_shapeRuns the same seven-rule face shape classifier as thefaceanalysis.com/face-shape-detector on four distances (any consistent unit: pixels, mm or landmark units).1 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.
Findings
- Warn
  The server marks "classify_face_shape" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
  Matched text
  annotations: {"readOnlyHint":true,"openWorldHint":false}; The description's first verb is "run": a word for a change.
  What this check looks for
Description, as the server wrote it
Runs the same seven-rule face shape classifier as thefaceanalysis.com/face-shape-detector on four distances (any consistent unit: pixels, mm or landmark units). Returns the shape, the rule that matched and the four ratios. It does not look at photos: to measure a photo, use the widget (get_embed_snippet) or the site. Borderline faces can flip between two shapes; no accuracy figure is claimed because the reference set has no labelled face types.
Annotations the server declares
- readOnlyHint: true
- openWorldHint: false

Only reads 6Looks things up and changes nothing.Show 6 read-only tools

get_citationCitation text, license (CC BY 4.0 for the aggregate numbers) and the source photo set.No findings
Why it is in this group
- The name "get_citation" says "get": a word for reading.
Description, as the server wrote it
Citation text, license (CC BY 4.0 for the aggregate numbers) and the source photo set. Use when quoting a number.
Annotations the server declares
- readOnlyHint: true
- openWorldHint: false
get_embed_snippetHTML a website owner can paste to add the free face shape finder (it measures the visitor's photo in their browser, no sign-up).Reads text others writeNo findings
Why it is in this group
- The name "get_embed_snippet" says "get": a word for reading.
What it can reach
- untrusted-inputThe description's first sentence says "html": it reads web pages, which anyone can write.
Description, as the server wrote it
HTML a website owner can paste to add the free face shape finder (it measures the visitor's photo in their browser, no sign-up). Includes the visible credit link the terms ask for.
Annotations the server declares
- readOnlyHint: true
- openWorldHint: false
get_face_typeDefinition and how the type is measured from a front photo (the exact threshold rule), plus its page URL.Reads text others writeNo findings
Why it is in this group
- The name "get_face_type" says "get": a word for reading.
What it can reach
- untrusted-inputThe description's first sentence says "url": it reads web pages, which anyone can write.
Description, as the server wrote it
Definition and how the type is measured from a front photo (the exact threshold rule), plus its page URL. Example: category 'face', slug 'oval'.
Annotations the server declares
- readOnlyHint: true
- openWorldHint: false
get_methodologyHow the numbers are made: the landmark model, every classification threshold, how the 1-10 score is built, and how it correlated with 2,513 human raters on the same faces (it did n…No findings
Why it is in this group
- The name "get_methodology" says "get": a word for reading.
Description, as the server wrote it
How the numbers are made: the landmark model, every classification threshold, how the 1-10 score is built, and how it correlated with 2,513 human raters on the same faces (it did not predict them). Includes the method change history.
Annotations the server declares
- readOnlyHint: true
- openWorldHint: false
get_reference_statisticsPercentiles (p10, p25, median, p75, p90, min, max) of facial measurements from 102 adult faces (49 women, 53 men) of the Face Research Lab London Set, measured with a 478-point Med…No findings
Why it is in this group
- The name "get_reference_statistics" says "get": a word for reading.
Description, as the server wrote it
Percentiles (p10, p25, median, p75, p90, min, max) of facial measurements from 102 adult faces (49 women, 53 men) of the Face Research Lab London Set, measured with a 478-point MediaPipe landmarker. Measures: composite score, symmetry, golden ratio fit, fWHR, midface ratio, pupillary distance, canthal tilt. Aggregates only; one research set photographed in one city, so these describe these faces, not a population.
Annotations the server declares
- readOnlyHint: true
- openWorldHint: false
list_face_typesLists the types the site's detectors use, with slug, name, page URL and how many of the 102 reference faces each type covered.Reads text others writeNo findings
Why it is in this group
- The name "list_face_types" says "list": a word for reading.
What it can reach
- untrusted-inputThe description's first sentence says "list" and "url": it reads web pages, which anyone can write.
Description, as the server wrote it
Lists the types the site's detectors use, with slug, name, page URL and how many of the 102 reference faces each type covered. The split shows how the detector divides these faces, not how common a type is in a population.
Annotations the server declares
- readOnlyHint: true
- openWorldHint: false

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 or outbound.

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.; get_embed_snippet
get_face_type
list_face_types
Can send data out0: Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.

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

Findings

Matches of fixed checks, with the text they matched.

1 warn

Warnclassify_face_shape
The server marks "classify_face_shape" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
Matched text
annotations: {"readOnlyHint":true,"openWorldHint":false}; The description's first verb is "run": a word for a change.
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 0.1.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http face-analysis https://mcp.thefaceanalysis.com/mcp

claude mcp add --transport http face-analysis https://mcp.thefaceanalysis.com/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__face-analysis__get_reference_statistics",
      "mcp__face-analysis__list_face_types",
      "mcp__face-analysis__get_face_type",
      "mcp__face-analysis__get_methodology",
      "mcp__face-analysis__get_citation",
      "mcp__face-analysis__get_embed_snippet"
    ],
    "ask": [
      "mcp__face-analysis__classify_face_shape"
    ],
    "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 face-analysis. Review it before you use it.

Capability tags behind 3 rules

mcp__face-analysis__list_face_types untrusted-input
mcp__face-analysis__get_face_type untrusted-input
mcp__face-analysis__get_embed_snippet 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/com.thefaceanalysis/face-analysis/verify?hash=6abbf8df7743285802e9ee408a226b581c21f71060b37c8fd86b4463c85dc17d" | jq -e '.changed == false'

Pinned hash 6abbf8df7743, from Oct 26, 2026, 14:17 UTC.

Watch

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

https://anlyon.dev/servers/com.thefaceanalysis/face-analysis/changes.xml

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

Badge

[![anlyon.dev](https://anlyon.dev/badge/com.thefaceanalysis/face-analysis.svg)](https://anlyon.dev/servers/com.thefaceanalysis/face-analysis)

Source: MCP Registry · repository. Synced Oct 26, 2026, 14:17 UTC.