Free Aviation API

Free REST API for aviation data. 2,200+ ATPL exam questions, 500+ airports, 500+ glossary terms. No API key required.

Base URL: https://rotatepilot.com/api/v1

Endpoints

Method	Endpoint	Description
GET	/question	Random ATPL exam question(s)
GET	/airport/{code}	Airport by ICAO or IATA code
GET	/glossary/{term}	Aviation term definition
GET	/stats	Platform statistics

Quick Start

# Get a random ATPL question
curl https://rotatepilot.com/api/v1/question

# Get 3 meteorology questions
curl "https://rotatepilot.com/api/v1/question?subject=meteorology&count=3"

# Look up an airport
curl https://rotatepilot.com/api/v1/airport/KJFK

# Look up a term
curl https://rotatepilot.com/api/v1/glossary/tcas

# Get platform stats
curl https://rotatepilot.com/api/v1/stats

Examples

JavaScript

const res = await fetch("https://rotatepilot.com/api/v1/question?subject=meteorology");
const data = await res.json();
console.log(data.questions[0].question);
// "The three stages of a thunderstorm are:"

Python

import requests

data = requests.get("https://rotatepilot.com/api/v1/question?count=3").json()
for q in data["questions"]:
    print(q["question"])

Node.js

const https = require("https");

https.get("https://rotatepilot.com/api/v1/airport/EGLL", (res) => {
  let data = "";
  res.on("data", (chunk) => (data += chunk));
  res.on("end", () => {
    const airport = JSON.parse(data);
    console.log(`${airport.name} - ${airport.city}, ${airport.country}`);
    // "Heathrow Airport - London, United Kingdom"
  });
});

Endpoints Detail

GET /question

Returns random ATPL exam questions with multiple-choice options, correct answer, and explanation.

Parameters:

Param	Type	Default	Description
subject	string	(all)	Filter by ATPL subject
count	number	1	Number of questions (1-5)

Available subjects: air-law, airframes-systems, communications, flight-planning, general-navigation, human-performance, instruments, mass-balance, meteorology, operational-procedures, performance, principles-of-flight, radio-navigation

Response:

{
  "count": 1,
  "questions": [
    {
      "id": "abc123",
      "subject": "meteorology",
      "authority": "EASA",
      "question": "The three stages of a thunderstorm are:",
      "options": [
        "Forming, active, dissipating",
        "Initial, middle, final",
        "Cumulus, mature, dissipating",
        "Growth, peak, decay"
      ],
      "correctAnswer": 2,
      "explanation": "The three stages are: cumulus (developing), mature (heaviest precipitation), and dissipating (downdrafts dominate).",
      "difficulty": 2
    }
  ],
  "attribution": {
    "source": "Rotate Pilot",
    "url": "https://rotatepilot.com"
  }
}

GET /airport/{code}

Look up airport by ICAO (KJFK) or IATA (JFK) code.

Response:

{
  "icao": "KJFK",
  "iata": "JFK",
  "name": "John F. Kennedy International Airport",
  "city": "New York",
  "country": "United States",
  "region": "North America",
  "coordinates": { "lat": 40.6413, "lon": -73.7781 },
  "elevation": 13,
  "runways": 4,
  "hasTraining": false,
  "description": "Major international gateway..."
}

GET /glossary/{term}

Look up aviation terminology by slug, term name, or abbreviation.

Response:

{
  "slug": "tcas",
  "term": "Traffic Collision Avoidance System",
  "abbreviation": "TCAS",
  "category": "instruments",
  "definition": "An airborne system that monitors transponder signals...",
  "related": ["transponder", "ra", "ta"],
  "url": "https://rotatepilot.com/glossary/tcas"
}

GET /stats

Returns current platform statistics.

Response:

{
  "platform": "Rotate Pilot",
  "data": {
    "questions": 2204,
    "courses": 13,
    "flashcards": 500,
    "airports": 500,
    "glossaryTerms": 500,
    "subjects": 13,
    "languages": 16
  }
}

Rate Limits

• 60 requests per minute per IP address
• No authentication required
• CORS enabled for all origins

Terms

• Free for any use, including commercial
• Please include attribution: "Powered by Rotate Pilot"
• No guaranteed SLA (99%+ uptime on Vercel Edge)

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Full Documentation

rotatepilot.com/developers

License

MIT - Free to use, modify, and distribute.