Community Transit API

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

Overview

Community Transit (Transitland) is a free, open API that aggregates public transit data from hundreds of agencies worldwide including routes, stops, and schedules. No API key is required, making it very beginner-friendly for experimenting with transit data. It is a great starting point for building transit-aware apps without worrying about authentication.

Beginner Tip

Use the Transitland API Explorer at https://www.transit.land/documentation to browse available endpoints and test queries in your browser before writing code. Start with the /routes endpoint to list transit routes by bounding box.

Available Data

Use case: Integrate transitland api data into web and mobile applications
Community Transit data via REST API

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

onestop_id Globally unique identifier for a transit entity (operator, route, or stop) in the Onestop ID format.
name Human-readable name of the route or transit agency.
route_type GTFS route type integer: 0=tram, 1=subway, 2=rail, 3=bus, 4=ferry.
geometry GeoJSON LineString or MultiLineString representing the geographic path of the route.
operated_by_name Name of the transit agency that operates this route.

Implementation Example

Request
const url = "https://github.com/transitland/transitland-datastore/blob/master/";
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

404 Not Found Invalid or misspelled Onestop ID for an operator or route
Search for the correct Onestop ID using the /operators endpoint or the Transitland Web UI at https://www.transit.land/.
Empty results array No agencies found in the specified bounding box coordinates
Verify your lat/lon bounding box values are in the correct order (min_lat, min_lon, max_lat, max_lon) and cover a region with transit service.
422 Unprocessable Entity Query parameter value is out of the allowed range
Check the API documentation for valid parameter ranges, especially when using the limit parameter (max 1000).

Metadata Score Breakdown

Estimated from metadata — endpoint not independently tested

This score is estimated from observable metadata — HTTPS support, authentication model, declared CORS, and documentation reachability — because the API requires authentication or exposes no publicly testable endpoint. The five-signal breakdown is only shown for live-tested APIs.

Metadata estimate · endpoint not independently tested

Technical Specifications

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

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