Free Aviation REST API
3,500+ ATPL exam questions, 500+ airports, 500+ glossary terms. Build aviation apps, quizzes, and study tools. No signup required.
Quick Start
curl https://rotatepilot.com/api/v1/question?subject=meteorology&count=2const res = await fetch("https://rotatepilot.com/api/v1/question?subject=meteorology");
const data = await res.json();
console.log(data.questions[0].question);import requests
data = requests.get("https://rotatepilot.com/api/v1/question?count=3").json()
for q in data["questions"]:
print(q["question"])API Endpoints
Base URL: https://rotatepilot.com/api/v1
/metarGet the latest METAR for any ICAO airport, plus a derived flight category (VFR/MVFR/IFR/LIFR). Adds optional TAF when ?taf=1.
Parameters
icaostringICAO 3-4 char code (e.g. KJFK, EGLL)taf0|1Set to 1 to also include the latest TAFcurl "https://rotatepilot.com/api/v1/metar?icao=KJFK&taf=1"{
"icao": "KJFK",
"raw": "KJFK 121856Z 31015G25KT 10SM FEW250 ...",
"category": "VFR",
"ceilingFt": null,
"windDir": 310,
"windSpeedKt": 15,
"windGustKt": 25,
"temperatureC": -2,
"dewpointC": -17,
"altimeterInHg": 30.42,
"taf": { "raw": "KJFK 121720Z 1218/1324 ..." }
}/quiz-of-dayReturns a deterministic daily ATPL/PPL question — the same question for every visitor on a given UTC day. Cached at the edge for 1h.
curl "https://rotatepilot.com/api/v1/quiz-of-day"{
"date": "2026-05-05",
"question": {
"id": "abc123",
"subject": "meteorology",
"authority": "FAA",
"question": "Which weather phenomenon...",
"options": [...],
"correctAnswer": 2,
"explanation": "..."
}
}/aircraft/{slug}Static aircraft type lookup. Returns manufacturer, performance numbers (range, cruise speed, ceiling, MTOW), and whether a type rating is required.
Parameters
slugstringSlug like cessna-172-skyhawk, airbus-a320neocurl "https://rotatepilot.com/api/v1/aircraft/cessna-172-skyhawk"{
"slug": "cessna-172-skyhawk",
"name": "Cessna 172 Skyhawk",
"manufacturer": "Cessna",
"engines": 1,
"rangeNm": 640,
"cruiseSpeedKt": 124,
"ceilingFt": 14000,
"mtowKg": 1111,
"typeRatingRequired": false
}/quoteReturns a deterministic pilot quote of the day. Cached for 1h.
curl "https://rotatepilot.com/api/v1/quote"{
"date": "2026-05-05",
"text": "Aviate, navigate, communicate.",
"author": "Pilot's Universal Mantra"
}/questionGet random ATPL exam questions. Each includes the question, multiple-choice options, correct answer, and a detailed explanation.
Parameters
subjectstring?Filter by ATPL subject (e.g. meteorology, air-law)countnumber?Number of questions (1-5, default: 1)curl "https://rotatepilot.com/api/v1/question?subject=air-law&count=2"{
"count": 2,
"questions": [
{
"id": "abc123",
"subject": "air-law",
"authority": "FAA",
"question": "What is the minimum rest period...",
"options": [
{"label": "A", "text": "8 hours"},
{"label": "B", "text": "10 hours"},
{"label": "C", "text": "12 hours"},
{"label": "D", "text": "14 hours"}
],
"correctAnswer": 1,
"explanation": "According to FAR 91...."
}
],
"attribution": {
"source": "Rotate Pilot",
"url": "https://rotatepilot.com"
}
}/airport/{code}Look up airport by ICAO or IATA code. Returns location, elevation, runway count, and whether the airport has flight training facilities.
Parameters
codestringICAO (KJFK) or IATA (JFK) codecurl "https://rotatepilot.com/api/v1/airport/KJFK"{
"icao": "KJFK",
"iata": "JFK",
"name": "John F. Kennedy International Airport",
"city": "New York",
"country": "United States",
"coordinates": {"lat": 40.6413, "lon": -73.7781},
"elevation": 13,
"runways": 4,
"hasTraining": false,
"description": "Major international gateway..."
}/glossary/{term}Look up aviation terminology by slug, term name, or abbreviation. Returns definition, category, and related terms.
Parameters
termstringSlug (angle-of-attack), name, or abbreviation (aoa)curl "https://rotatepilot.com/api/v1/glossary/tcas"{
"slug": "tcas",
"term": "TCAS",
"abbreviation": "TCAS",
"category": "avionics",
"definition": "Traffic Collision Avoidance System...",
"related": ["transponder", "ads-b"],
"url": "https://rotatepilot.com/glossary/tcas"
}/statsGet current platform statistics including total questions, airports, glossary terms, and available subjects.
curl "https://rotatepilot.com/api/v1/stats"{
"platform": "Rotate Pilot",
"data": {
"questions": 2204,
"courses": 13,
"flashcards": 500,
"airports": 500,
"glossaryTerms": 500,
"subjects": 13,
"languages": 16
}
}Available Subjects
air-lawairframes-systemscommunicationsflight-planninggeneral-navigationhuman-performanceinstrumentsmass-balancemeteorologyoperational-proceduresperformanceprinciples-of-flightradio-navigationWhat You Can Build
Quiz Apps
Build aviation quiz apps for iOS, Android, or web using our question bank.
Study Bots
Create Telegram, Discord, or WhatsApp bots that send daily pilot questions.
Flashcard Tools
Generate flashcard decks for Anki or custom spaced repetition apps.
Flight Planners
Use airport data for flight planning tools and airport briefing apps.
Training Platforms
Integrate real exam questions into your flight school LMS or training portal.
Research
Access structured aviation terminology data for academic or NLP projects.
Rate Limits & Terms
Rate limits
60 requests per minute per IP. Generous enough for any app.
Authentication
None required. No API keys, no signup, no tokens.
CORS
Enabled for all origins. Call from any frontend.
Attribution
Please include "Powered by Rotate Pilot" with a link to rotatepilot.com in your app.
Commercial use
Free for any use including commercial. Attribution required.
SLA
Best-effort. 99%+ uptime on Vercel Edge. No guaranteed SLA.
Prefer Drop-In Widgets?
10 ready-made iframes — METAR, weight & balance, runway analysis, daily quiz, and more. Live builder lets you set theme, size, and defaults. Free, attribution-only.