Dr. Dotzauer Calculators MCP

An official MCP server providing deterministic health and fitness calculators including body fat, BMI, BMR, TDEE, protein needs, and strength standards. It allows AI agents to compute values using the same formulas as the website, with results citing the original source URLs for transparency.

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

Vendor evidenceStreamable HTTPNo sign-inEndpoint checked 2026-11-02Operated by Dr. med. Dominik Dotzauer

MCP endpoint (Streamable HTTP)

https://drdotzauer.de/mcp

Vendor documentation

What its tools do

11 tools, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.

Not annotated (11)

koerperfett_navy
bmi
ffmi
idealgewicht
grundumsatz
kalorienverbrauch
kaloriendefizit
abnehmdauer
protein_bedarf
einrm
kraftwerte

11 of 11 have a description · 0 of 11 declare behavior hints · 6 of 11 with parameters document them all

Checks and signals

Each line is separate evidence, not a trust score.

Passed Endpoint answered the live check · Nov 2, 2026, 7:38 AM UTC
Passed Official MCP Registry namespace is tied to drdotzauer.de · Nov 2, 2026, 7:36 AM UTC
Passed Endpoint is on the registry namespace domain · Nov 2, 2026, 7:36 AM UTC
Availability 1 of 1 checks passed in 30 days

What you can do with it

Calculate body fat percentage using the US-Navy method
Determine daily protein requirements based on fitness goals
Estimate 1RM strength standards using Epley or Brzycki formulas
Calculate calorie deficit tiers and weight loss duration

Source and maintenance

Vendor evidenceRegistry 1.0.0

mcp-registry: de.drdotzauer/health-calculators@1.0.0 Project website

Protocol and capabilities

Server: drdotzauer-health-calculators 1.0.0
MCP protocol negotiated in check: 2025-06-18
Tools: 11 advertised
Resources: Not advertised
Resource templates: Not advertised
Prompts: Not advertised

Server-advertised capabilities

{
  "tools": {}
}

Tools

11 advertised

koerperfett_navy

Advertised by the server during the last successful anonymous check.

Körperfettanteil (%) nach der US-Navy-Umfangmethode aus Körpermaßen berechnen (Größe, Hals, Taille/Bauch, bei Frauen zusätzlich Hüfte), inkl. neutraler Kategorie-Einordnung. Gleiche Formel wie der Körperfett-Rechner auf drdotzauer.de/koerperfett-rechner.

koerperfett_navy input schema

{
  "type": "object",
  "required": [
    "sex",
    "height_cm",
    "neck_cm",
    "waist_cm"
  ],
  "properties": {
    "sex": {
      "enum": [
        "male",
        "female"
      ],
      "type": "string",
      "description": "Biologisches Geschlecht"
    },
    "hip_cm": {
      "type": "number",
      "description": "Hüftumfang in cm (nur bei sex=female Pflicht)"
    },
    "neck_cm": {
      "type": "number",
      "description": "Halsumfang in cm"
    },
    "waist_cm": {
      "type": "number",
      "description": "Taillen- (Frauen) bzw. Bauchumfang (Männer) in cm"
    },
    "height_cm": {
      "type": "number",
      "description": "Körpergröße in cm"
    }
  }
}

bmi

Advertised by the server during the last successful anonymous check.

Body-Mass-Index (kg/m²) mit WHO-Klassifikation für Erwachsene. Wie der BMI-Rechner auf drdotzauer.de/bmi-rechner.

bmi input schema

{
  "type": "object",
  "required": [
    "weight_kg",
    "height_cm"
  ],
  "properties": {
    "height_cm": {
      "type": "number",
      "description": "Größe in cm"
    },
    "weight_kg": {
      "type": "number",
      "description": "Gewicht in kg"
    }
  }
}

ffmi

Advertised by the server during the last successful anonymous check.

Fat-Free-Mass-Index (FFMI) und Magermasse aus Gewicht, Größe und Körperfettanteil, normalisiert auf 1,80 m (Kouri 1995, Faktor 6,3). Wie der FFMI-Rechner auf drdotzauer.de/ffmirechner.

ffmi input schema

{
  "type": "object",
  "required": [
    "weight_kg",
    "height_cm",
    "body_fat_percent"
  ],
  "properties": {
    "height_cm": {
      "type": "number",
      "description": "Größe in cm"
    },
    "weight_kg": {
      "type": "number",
      "description": "Gewicht in kg"
    },
    "body_fat_percent": {
      "type": "number",
      "description": "Körperfettanteil in % (2–60)"
    }
  }
}

idealgewicht

Advertised by the server during the last successful anonymous check.

Gesunde Gewichtsspanne (kg) für eine Körpergröße über die BMI-Spanne 18,5 bis 24,9. Wie der Idealgewicht-Rechner auf drdotzauer.de/idealgewicht-rechner.

idealgewicht input schema

{
  "type": "object",
  "required": [
    "height_cm"
  ],
  "properties": {
    "height_cm": {
      "type": "number",
      "description": "Größe in cm"
    }
  }
}

grundumsatz

Advertised by the server during the last successful anonymous check.

Grundumsatz (BMR, Mifflin-St-Jeor + Harris-Benedict-Vergleich) und Gesamtumsatz (TDEE) je Aktivitätslevel. Wie der Grundumsatz-Rechner auf drdotzauer.de/grundumsatz-rechner.

grundumsatz input schema

{
  "type": "object",
  "required": [
    "sex",
    "age_years",
    "weight_kg",
    "height_cm"
  ],
  "properties": {
    "sex": {
      "enum": [
        "male",
        "female"
      ],
      "type": "string"
    },
    "activity": {
      "enum": [
        "sedentary",
        "light",
        "moderate",
        "high",
        "athlete"
      ],
      "type": "string",
      "description": "Aktivitätslevel (sedentary 1.2 … athlete 1.9); Default light"
    },
    "age_years": {
      "type": "number",
      "description": "Alter in Jahren (14–100)"
    },
    "height_cm": {
      "type": "number"
    },
    "weight_kg": {
      "type": "number"
    }
  }
}

kalorienverbrauch

Advertised by the server during the last successful anonymous check.

Kalorienverbrauch EINER Sport-/Alltagsaktivität (MET-basiert: kcal = MET × kg × Stunden). Nicht der Gesamtumsatz, dafür grundumsatz/kaloriendefizit nutzen. Wie der Kalorienverbrauch-Rechner auf drdotzauer.de/kalorienverbrauch-rechner.

kalorienverbrauch input schema

{
  "type": "object",
  "required": [
    "weight_kg",
    "duration_min"
  ],
  "properties": {
    "met": {
      "type": "number",
      "description": "Optionaler MET-Wert, überschreibt activity"
    },
    "activity": {
      "enum": [
        "spazieren",
        "zuegiges_gehen",
        "wandern",
        "joggen",
        "radfahren",
        "schwimmen",
        "krafttraining",
        "hiit",
        "seilspringen",
        "rudergeraet",
        "crosstrainer",
        "fussball",
        "tanzen",
        "yoga",
        "hausarbeit"
      ],
      "type": "string",
      "description": "Aktivität (setzt den MET-Wert); alternativ met direkt angeben"
    },
    "weight_kg": {
      "type": "number"
    },
    "duration_min": {
      "type": "number",
      "description": "Dauer in Minuten (1–600)"
    }
  }
}

kaloriendefizit

Advertised by the server during the last successful anonymous check.

Gesamtumsatz (TDEE) plus drei Defizit-Stufen (−15/−20/−25 %) mit erwarteter Wochen-Abnahme und Eiweißziel. Enthält ein Erwachsenen-/Plausibilitäts-Gate (kein Zahlenziel bei Minderjährigen oder Untergewicht). Wie der Kaloriendefizit-Rechner auf drdotzauer.de/kaloriendefizit-rechner.

kaloriendefizit input schema

{
  "type": "object",
  "required": [
    "sex",
    "age_years",
    "weight_kg",
    "height_cm"
  ],
  "properties": {
    "sex": {
      "enum": [
        "male",
        "female"
      ],
      "type": "string"
    },
    "activity": {
      "enum": [
        "sedentary",
        "light",
        "moderate",
        "high",
        "athlete"
      ],
      "type": "string",
      "description": "Aktivitätslevel; Default light"
    },
    "age_years": {
      "type": "number",
      "description": "Alter in Jahren (14–100)"
    },
    "height_cm": {
      "type": "number"
    },
    "weight_kg": {
      "type": "number"
    }
  }
}

abnehmdauer

Advertised by the server during the last successful anonymous check.

Dauer bis zum Zielgewicht bei drei Tempos (0,5 / 1 / 1,5 % Körpergewicht pro Woche), optional mit Termin-Prüfung. Wie der Abnehmdauer-Rechner auf drdotzauer.de/abnehmen/abnehmdauer.

abnehmdauer input schema

{
  "type": "object",
  "required": [
    "current_weight_kg",
    "goal_weight_kg"
  ],
  "properties": {
    "deadline_weeks": {
      "type": "number",
      "description": "Optional: Wochen bis zu einem Termin, prüft das nötige Wochentempo"
    },
    "goal_weight_kg": {
      "type": "number",
      "description": "Wunschgewicht in kg (kleiner als aktuell)"
    },
    "current_weight_kg": {
      "type": "number",
      "description": "Aktuelles Gewicht in kg"
    }
  }
}

protein_bedarf

Advertised by the server during the last successful anonymous check.

Täglicher Eiweißbedarf als Bereich (g/Tag) nach Gewicht, Ziel und Aktivität (Faktoren u. a. Morton 2018). Wie der Proteinrechner auf drdotzauer.de/proteinrechner.

protein_bedarf input schema

{
  "type": "object",
  "required": [
    "weight_kg",
    "goal"
  ],
  "properties": {
    "goal": {
      "enum": [
        "erhalt",
        "abnehmen",
        "muskelaufbau"
      ],
      "type": "string",
      "description": "Ziel"
    },
    "active": {
      "type": "boolean",
      "description": "Sportlich aktiv? Nur bei goal=erhalt relevant, Default true"
    },
    "weight_kg": {
      "type": "number"
    }
  }
}

einrm

Advertised by the server during the last successful anonymous check.

Geschätztes 1-Rep-Maximum (1RM) und 5RM-Äquivalent aus Gewicht × sauberen Wiederholungen (Mittel aus Epley- und Brzycki-Formel). Wie der 1RM-Rechner auf drdotzauer.de/kraftwerte-rechner.

einrm input schema

{
  "type": "object",
  "required": [
    "weight_kg",
    "reps"
  ],
  "properties": {
    "reps": {
      "type": "number",
      "description": "Saubere Wiederholungen (2–12)"
    },
    "weight_kg": {
      "type": "number",
      "description": "Bewegtes Gewicht in kg"
    }
  }
}

kraftwerte

Advertised by the server during the last successful anonymous check.

Kraftstandards relativ zum Körpergewicht (Anfänger/Fortgeschritten/Elite) für Kniebeuge, Bankdrücken, Kreuzheben, Rudern, Schulterdrücken (5RM in kg) und Klimmzüge (Wdh.), plus Gesamtbewertung. Wie der Kraftwerte-Rechner auf drdotzauer.de/kraftwerte-rechner.

kraftwerte input schema

{
  "type": "object",
  "required": [
    "sex",
    "bodyweight_kg"
  ],
  "properties": {
    "ohp": {
      "type": "number",
      "description": "5RM Schulterdrücken in kg (optional)"
    },
    "row": {
      "type": "number",
      "description": "5RM Rudern in kg (optional)"
    },
    "sex": {
      "enum": [
        "male",
        "female"
      ],
      "type": "string"
    },
    "bench": {
      "type": "number",
      "description": "5RM Bankdrücken in kg (optional)"
    },
    "squat": {
      "type": "number",
      "description": "5RM Kniebeuge in kg (optional)"
    },
    "pullups": {
      "type": "number",
      "description": "Maximale Klimmzüge (Wdh., optional)"
    },
    "deadlift": {
      "type": "number",
      "description": "5RM Kreuzheben in kg (optional)"
    },
    "bodyweight_kg": {
      "type": "number",
      "description": "Körpergewicht in kg (30–200)"
    }
  }
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

90-day uptime

A lightweight connection check about every six hours, sampled on hosts with many listings. It shows the server answered, not that its tools work.

Too few checks for a percentage yet (4 of 4 answered).

2026-11-02: 3 of 3 checks answered
2026-11-03: 1 of 1 checks answered

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks: 1 of 1 (100%)
Average latency: 523 ms
95th percentile latency: 523 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

Nov 2, 2026, 7:38 AM UTC · probe · passed · 523 ms · metadata changed · 11 tool(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http dr-dotzauer-calculators-mcp https://drdotzauer.de/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add dr-dotzauer-calculators-mcp --url https://drdotzauer.de/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable dr-dotzauer-calculators-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "dr-dotzauer-calculators-mcp": {
      "url": "https://drdotzauer.de/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).

Cline configuration

{
  "mcpServers": {
    "dr-dotzauer-calculators-mcp": {
      "type": "streamableHttp",
      "url": "https://drdotzauer.de/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start dr-dotzauer-calculators-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "dr-dotzauer-calculators-mcp": {
      "type": "http",
      "url": "https://drdotzauer.de/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http dr-dotzauer-calculators-mcp https://drdotzauer.de/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "dr-dotzauer-calculators-mcp": {
      "url": "https://drdotzauer.de/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "dr-dotzauer-calculators-mcp": {
      "serverUrl": "https://drdotzauer.de/mcp"
    }
  }
}

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