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PostcodeData.nl

Dutch postcode + house number to street and coordinates

🗺 Geo & MapsHEALTHYchecked 5h ago
AUTH NONECORS ✓AGENT ✓HTTPS ✗COMMERCIAL ?

Resolves a Dutch postcode and house number into the street, city, municipality, province and both RD and WGS84 (lat/lon) coordinates. Pass type=json for structured output. Served over plain HTTP only.

91HOW IT'S SCORED ⓘ
Docs ↗
Status badge · for your READMEshipapis health badge: 91 · healthy
Uptime history
100%90 days
100%30 days
692P50 · ms
1989P95 · ms
operationalpartialdownno data
Response time · last 48 checks
Fastest 54 ms, slowest 1421 ms, most recent 453 ms.
Live response samplecaptured by our last successful check
GET http://api.postcodedata.nl/v1/postcode/?postcode=1211EP&streetnumber=60&ref=domeinnaam.nl&type=json

{
  "status": "ok",
  "details": [
    {
      "street": "Stationsstraat",
      "city": "Hilversum",
      "province": "Noord-Holland",
      "postcode": "1211 EP",
      "lat": "52.2269378842251",
      "lon": "5.1780191356884"
    }
  ]
}
Call itcurl · fetch · python
curl "http://api.postcodedata.nl/v1/postcode/?postcode=1211EP&streetnumber=60&ref=domeinnaam.nl&type=json"
const res = await fetch("http://api.postcodedata.nl/v1/postcode/?postcode=1211EP&streetnumber=60&ref=domeinnaam.nl&type=json");
const data = await res.json();
console.log(data);
import requests

res = requests.get("http://api.postcodedata.nl/v1/postcode/?postcode=1211EP&streetnumber=60&ref=domeinnaam.nl&type=json")
print(res.json())

BROWSER CALLS BLOCKED (NO CORS/HTTPS) — USE THE CURL SNIPPET

Endpoints · 3HealthyFULL DOCS ↗
Monitored path responding — GET /postcode/?postcode=1211EP&streetnumber=60&ref=domeinnaam.nl&type=json692 mschecked 5h ago
GET/postcode/?postcode=1211EP&streetnumber=60&ref=domeinnaam.nl&type=jsonPROBED

Dutch postcode + house number to street and coordinates

GET/postcode/?limit=5

Postcode — documented GET route.

GET/postcode/?page=1

Postcode — documented GET route.

Machine-readable spec

We probe a documented GET and expect 2xx JSON — full uptime and health score. Export includes every documented route below.

Response-shape history

Stable. No schema drift observed since monitoring began — the response shape has not changed under our checks.

PostcodeData.nl: common questions

Is PostcodeData.nl free to use?

Yes — PostcodeData.nl is a free geo & maps API. Free tier: Free — limits not published. Whether the free tier allows commercial use is unclear — check the provider docs.

Does PostcodeData.nl need an API key?

No — PostcodeData.nl needs no API key or signup. You can call it straight away; rate limits still apply (Unpublished).

Can I call PostcodeData.nl from the browser?

Not directly — PostcodeData.nl doesn't send browser-friendly CORS headers, so call it from a server or proxy instead. Copy the curl or Python snippet on this page to get started.

Is PostcodeData.nl up right now?

As of our last scheduled check, PostcodeData.nl is healthy with 100% uptime over 90 days and a 692 ms median response. We re-probe it every sweep — the status badge and uptime chart above always show the latest.