Overview
Transport for The Netherlands (OVAPI) provides country-wide public transport data covering buses, trams, metros, and ferries across the Netherlands via the KV78Turbo protocol. This free API requires no authentication and provides real-time vehicle positions, stop departures, and journey data. It is a community-supported open data initiative for Dutch transit.
Beginner Tip
The OVAPI base URL is http://v0.ovapi.nl — try /stopareacode/ followed by a stop area code to get live departures. Stop codes can be found on Dutch bus stop signs or via the stopareacode list endpoint.
Measurement Record
What actually happened when we called this API from our own infrastructure. Every value below was recorded by the request, not copied from the provider's documentation.
- Request
- GET http://v0.ovapi.nl/stopareacode/WDT/
- Result
- HTTP 200 · application/json · 10 bytes · compressed
- Response time
- 273 ms (median of 3) · fastest 272 ms
- Browser CORS
- No Access-Control-Allow-Origin header — call it from a server, not the browser
- Recorded
- 2026-08-10
Fields Returned
Top-level fields present in the response we captured, with the type and value we actually received.
| Field | Type | Value received |
|---|---|---|
| WDT | object | {0 fields} |
Captured Response
Captured from a real request to http://v0.ovapi.nl/stopareacode/WDT/ on 2026-08-10. Long arrays and nested objects are truncated to keep the shape readable.
{
"WDT": {}
} Implementation Example
Calls a real endpoint of this API. Replace any placeholder credentials with your own key.
const url = "https://github.com/skywave/KV78Turbo-OVAPI/wiki";
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.
How This API Fails
We deliberately sent this API a broken request and recorded exactly what came back on 2026-08-10. Knowing the shape of an error before you hit it makes error handling much easier to write.
Returned an HTML error page rather than JSON — worth knowing if your client assumes every response can be parsed as JSON.
Common Errors & Troubleshooting
Generated guidance based on this API's documentation, not observed by us. Treat it as a starting point and check against the provider's own error reference.
Measured Score Breakdown
Live HTTP request to the API endpoint
Fully tested on Aug 10, 2026
Technical Specifications
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