FaceRuler

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How to connect

Add it to any MCP client that supports remote servers.

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

4 tools

• 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.

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