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PostcodeData.nl

Dutch postcode + house number to street and coordinates

🗺 Geo & MapsUNMONITORED
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.

—HOW IT'S SCORED ⓘ
Docs ↗
Status badge · for your READMEshipapis health badge: — · unmonitored
ON PROBE SCHEDULE

We probe a documented GET and expect 2xx JSON — full uptime and health score. Open provider docs ↗

Uptime historystarts after first probe

On our probe schedule. Uptime charts appear after the first check lands.

Example responsefrom provider docs — not verified by us
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 · 3On scheduleFULL DOCS ↗
On schedule — GET /postcode/?postcode=1211EP&streetnumber=60&ref=domeinnaam.nl&type=json awaits first probe
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

Not tracked yet. Shape-change history starts once this API joins our probe schedule.

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?

PostcodeData.nl is catalogued but not yet on our probe schedule, so we don't publish a live status for it. Check the provider's own status page or docs for its current state.