How do I get an API Ninjas key?

Sign up for free at [**api-ninjas.com/register**](https://api-ninjas.com/register). Free tier includes 10,000 requests/month.

What exercises are available?

The database includes 1000+ exercises covering cardio, strength training, stretching, plyometrics, powerlifting, Olympic weightlifting and strongman. Each exercise includes step-by-step instructions and equipment needed.

How can I calculate my daily calorie needs?

Use the `calculate_bmr` tool to find your Basal Metabolic Rate, then multiply it by your activity level to get your TDEE (Total Daily Energy Expenditure). This tells you exactly how many calories you need to maintain your current weight.

API Ninjas MCP Server for Claude Desktop 8 tools — connect in under 2 minutes

Name: API Ninjas
Availability: InStock
Author: Vinkius

modelcontextprotocol.io/quickstart/user

Built by Vinkius GDPR 8 Tools IDE

Claude Desktop is Anthropic's native application for interacting with Claude AI models on macOS and Windows. It was the first consumer application to ship with built-in MCP support, making it the reference implementation for the Model Context Protocol standard.

Get MCP Server for AI Agents

ASK AI ABOUT THIS MCP SERVER

Open in ChatGPT Open in Claude Open in Perplexity

Vinkius supports streamable HTTP and SSE.

RecommendedModern Approach — Zero Configuration

Vinkius Desktop App

The modern way to manage MCP Servers — no config files, no terminal commands. Install API Ninjas and 2,500+ MCP Servers from a single visual interface.

Download Free Open SourceNo signup required

Classic Setup·json

{
  "mcpServers": {
    "api-ninjas": {
      // Your Vinkius token. get it at cloud.vinkius.com
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Fully ManagedVinkius Servers

60%Token savings

High SecurityEnterprise-grade

IAMAccess control

EU AI ActCompliant

DLPData protection

V8 IsolateSandboxed

Ed25519Audit chain

<40msKill switch

Stream every event to Splunk, Datadog, or your own webhook in real-time

* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure

About API Ninjas MCP Server

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

Claude Desktop is the definitive way to connect API Ninjas to your AI workflow. Add Vinkius Edge URL to your config, restart the app, and Claude immediately exposes all 8 tools in the chat interface. ask a question, Claude calls the right tool, and you see the answer. Zero code, zero context switching.

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

The API Ninjas MCP Server exposes 8 tools through the Vinkius. Connect it to Claude Desktop in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

How to Connect API Ninjas to Claude Desktop via MCP

Follow these steps to integrate the API Ninjas MCP Server with Claude Desktop.

Open Claude Desktop Settings

Go to Settings → Developer → Edit Config to open claude_desktop_config.json

Add the MCP Server

Paste the configuration above into the mcpServers section

Restart Claude Desktop

Close and reopen Claude Desktop to load the new server

Start using API Ninjas

Look for the 🔌 icon in the chat. your 8 tools are now available

Why Use Claude Desktop with the API Ninjas MCP Server

Claude Desktop by Anthropic provides unique advantages when paired with API Ninjas through the Model Context Protocol.

Claude Desktop is the reference MCP client. it was designed alongside the protocol itself, ensuring the most complete and stable MCP implementation available

Zero-code configuration: add a server URL to a JSON file and Claude instantly discovers and exposes all available tools in the chat interface

Claude's extended thinking capability lets it reason through multi-step tool usage, chaining multiple API calls to answer complex questions

Enterprise-grade security with local config storage. your tokens never leave your machine, and connections go directly to Vinkius Edge network

API Ninjas + Claude Desktop Use Cases

Practical scenarios where Claude Desktop combined with the API Ninjas MCP Server delivers measurable value.

Interactive data exploration: ask Claude to query DNS records, look up WHOIS data, and cross-reference results in a single conversation

Ad-hoc security audits: type a domain name and let Claude enumerate subdomains, check DNS history, and flag configuration anomalies. all through natural language

Executive briefings: generate comprehensive domain intelligence reports by asking Claude to compile findings into a formatted summary

Learning and training: new team members can explore API capabilities conversationally without needing to read documentation

API Ninjas MCP Tools for Claude Desktop (8)

These 8 tools become available when you connect API Ninjas to Claude Desktop via MCP:

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

Example Prompts for API Ninjas in Claude Desktop

Ready-to-use prompts you can give your Claude Desktop agent to start working with API Ninjas immediately.

"Find chest exercises for beginners."

"What's the nutritional info for a banana?"

"Calculate my BMR. I'm 30 years old, male, 80kg, 180cm."

Troubleshooting API Ninjas MCP Server with Claude Desktop

Common issues when connecting API Ninjas to Claude Desktop through the Vinkius, and how to resolve them.

Server not appearing after restart

Ensure the JSON is valid (no trailing commas). Check the file path: ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\\Claude\\ (Windows).

Authentication error

Verify your Vinkius token is correct. Go to cloud.vinkius.com to regenerate it if needed.

Tools not showing in chat

Click the 🔌 icon at the bottom of the chat input. If it shows 0 tools, the server may still be connecting. wait a few seconds.

API Ninjas + Claude Desktop FAQ

Common questions about integrating API Ninjas MCP Server with Claude Desktop.

How does Claude Desktop discover MCP tools?

When Claude Desktop starts, it reads the claude_desktop_config.json file and connects to each configured MCP server. It calls the tools/list endpoint to fetch the schema for every available tool, then surfaces them as clickable options in the chat interface via the 🔌 icon.

What happens if the MCP server is temporarily unavailable?

Claude Desktop handles disconnections gracefully. if the server is unreachable at startup, the tools simply won't appear. Once the server becomes available again, restarting Claude Desktop will re-establish the connection. There is no timeout penalty or error loop.

Can I connect multiple MCP servers simultaneously?

Yes. You can add as many servers as you need in the mcpServers section of the config file. Each server appears as a separate tool provider, and Claude can use tools from multiple servers in a single conversation turn.

Is there a limit on the number of tools per server?

Claude Desktop can handle hundreds of tools per server. However, for optimal LLM performance, Vinkius servers are designed to expose focused, well-documented tool sets rather than overwhelming the model with too many options.

Does Claude Desktop support Streamable HTTP transport?

Yes. Claude Desktop supports both SSE (Server-Sent Events) and the newer Streamable HTTP transport that Vinkius uses. Simply provide the server URL. Claude auto-negotiates the transport protocol.