Transport for Atlanta, US API

⭐ Beginner's Pick Transportation / No Auth Required Beginner HTTP
Free to Use Varies (check documentation)

Overview

The MARTA (Metropolitan Atlanta Rapid Transit Authority) API provides real-time train and bus arrival data for the Atlanta, Georgia public transit system. It requires no authentication, so you can start querying train arrivals immediately. It is a simple and accessible API for learning about real-time transit data.

💡

Beginner Tip

No API key required. Query /arrivals to get all current train arrival times, or add a station parameter to filter results by a specific MARTA station.

Available Data

match scores and results
team standings
player statistics
schedule and fixtures
Use case: Integrate marta data into web and mobile applications

Example Response

JSON Response
{
  "route": "Line 1",
  "origin": "Station A",
  "destination": "Station B",
  "departure": "08:30",
  "arrival": "09:15",
  "status": "On Time",
  "delays_min": 0
}

Field Reference

STATION Name of the MARTA train station (e.g., "AIRPORT STATION")
DESTINATION Final destination station for the arriving train
DIRECTION Cardinal direction of travel (N, S, E, or W)
WAITING_TIME Estimated waiting time until the train arrives (e.g., "3 min", "Arriving", "Boarding")
LINE MARTA rail line color the train runs on (RED, GOLD, BLUE, or GREEN)

Implementation Example

const url = "http://www.itsmarta.com/";
const response = await fetch(url);
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
const data = await response.json();
console.log(data);

What Can You Build?

Note: These code examples are AI-generated and unverified. Always refer to the official API documentation for accurate usage.

Common Errors & Troubleshooting

HTTP not HTTPS endpoint The MARTA API uses plain HTTP, which may be blocked by browsers due to mixed-content policies
Make requests from a server-side environment (Node.js, Python) rather than directly from browser JavaScript
Empty or null WAITING_TIME The train arrival time has not yet been estimated by the system
Filter out records where WAITING_TIME is "null" or empty before displaying to users
CORS error The API does not include CORS headers, blocking browser-based requests
Use a server-side proxy or backend API route to forward requests to the MARTA endpoint

Matrix Score Breakdown

🌐 Reachability 30/30
⚡ Speed 10/20
🔒 Security 5/15
🛠 Developer XP 15/20
✓ Reliability 7/15
Response Time 686ms

Fully tested on Apr 5, 2026

Technical Specifications

Auth No Auth
HTTPS NO
CORS UNKNOWN
Category Transportation
Difficulty Beginner
Verified: 2026-04-07

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