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FaceRuler

com.faceruler/faceruler · v1.0.0

Measured by MCP Station

Last check	Reachable
Checked at	—
Check success 7 / 30 days	—
First-try success 30 days	—
Median response	—
Lookups 30 days	—
Authentication	No auth
MCP version	2025-06-18
Rank score	—
Declared risk	Read-only (all tools declare readOnlyHint)
Capabilities declared	tools
Tool definitions	4 tools · with description 100% · input schema is an object 100% · read/destructive hints 100%

PSL score tiers, face shape classification and looksmaxxing term lookup from FaceRuler.

streamable-http · https://faceruler.com/api/mcp

claude mcp add --transport http faceruler https://faceruler.com/api/mcp

{
  "mcpServers": {
    "faceruler": {
      "url": "https://faceruler.com/api/mcp"
    }
  }
}

psl_score_lookup
Convert a PSL score (0–8 looksmaxxing face rating scale) into its tier name, approximate population percentile and casual 1–10 equivalent.
classify_face_shape
Classify a face into one of 7 shapes (oval, round, square, oblong, heart, diamond, triangle) from three measured outline ratios, with a match % for every shape.
lookup_looksmaxxing_term
Define a looksmaxxing / PSL term (e.g. LTN, HTN, Chadlite, canthal tilt, hunter eyes, mog) and link to its full explanation.
get_face_measurement_tool
Return the link to FaceRuler’s free on-device tool for measuring a real face from one photo (PSL score, face shape, canthal tilt or facial ratios). Use when the user wants their own face measured.

Website · JSON · Text for agents · Registry updated 2026-10-16