What is the API Ninjas MCP Server?

The API Ninjas MCP Server gives AI agents like Claude, ChatGPT, and Cursor direct access to API Ninjas. Access fitness, health and nutrition tools — search exercises, calculate calories, body fat, BMR, TDEE and get nutrition info. Powered by the Vinkius AI Gateway — no API keys, no infrastructure, connect in under 2 minutes.

API Ninjas MCP Server: see your AI Agent in action

AI Agent→Vinkius→API Ninjas
You

Vinkius AI Gateway
GDPR·High Security·Kill Switch·Ultra-Low Latency·Plug and Play

Built-in capabilities (8)

get_bmr

Requires weight (kg), height (cm), age and gender. Returns BMR value in calories/day. Calculate Basal Metabolic Rate

get_body_fat

Requires waist, neck and height measurements (in cm). For women, also requires hip measurement. Returns body fat percentage and category (lean, fitness, acceptable, obese). Estimate body fat percentage

get_calories_burned

Requires activity name, weight (kg) and duration (minutes). Returns activity name, duration, calories burned and MET value. Calculate calories burned for an activity

get_exercises

Supports filtering by name, type (cardio, olympic_weightlifting, plyometrics, powerlifting, strength, stretching, strongman), muscle (abdominals, abductors, adductors, biceps, calves, chest, forearms, glutes, hamstrings, lats, lower_back, middle_back, neck, quadriceps, traps, triceps) and difficulty (beginner, intermediate, expert). Returns exercise name, type, muscle worked, equipment needed, difficulty level and step-by-step instructions. Search exercises by name, type, muscle or difficulty

get_nutrition

Returns calories, protein, carbohydrates, fat, saturated fat, cholesterol, sodium, potassium, fiber and sugar per 100g serving. Get nutrition info for a food item

get_sleep

Returns recommended sleep range and whether current sleep is adequate. Get recommended sleep duration

get_steps

Requires step count and optionally weight (kg), height (cm), age and gender for more accurate calculations. Calculate calories and distance from steps

get_tdee

Requires weight (kg), height (cm), age, gender and activity level. Returns TDEE value in calories/day with breakdown by activity level. Calculate Total Daily Energy Expenditure

What this connector unlocks

Connect to API Ninjas and access a comprehensive suite of health and fitness tools through natural conversation.

What you can do

  • Exercise Search — Search 1000+ exercises by name, type, muscle group and difficulty with step-by-step instructions
  • Calories Burned — Calculate calories burned for various activities based on weight and duration
  • Body Fat — Estimate body fat percentage using the US Navy method
  • BMR & TDEE — Calculate Basal Metabolic Rate and Total Daily Energy Expenditure
  • Nutrition — Get nutritional info for any food item (calories, protein, carbs, fat)
  • Sleep — Get recommended sleep duration based on age and gender
  • Steps — Calculate calories burned and distance from step count

How it works

1. Subscribe to this server
2. Enter your API Ninjas API Key (free registration)
3. Start exploring health data from Claude, Cursor, or any MCP-compatible client

Who is this for?

  • Fitness Enthusiasts — discover exercises, track calories and calculate fitness metrics
  • Personal Trainers — find exercises by muscle group, calculate client BMR and TDEE
  • Nutritionists — look up nutritional info for food items and estimate body fat

Frequently asked questions

Give your AI agents the power of API Ninjas

Access API Ninjas and 2,500+ MCP servers — ready for your agents to use, right now. No glue code. No custom integrations. Just plug Vinkius AI Gateway and let your agents work.