OpenPLZ API
German/Austrian/Swiss postal localities
Open data API for postal codes and localities in DACH region. Search by name or postal code — keyless JSON.
GET https://openplzapi.org/de/Localities?name=Berlin
[
{
"postalCode": "10115",
"name": "Berlin",
"municipality": {
"key": "11000000",
"name": "Berlin, Stadt",
"type": "Kreisfreie Stadt"
},
"federalState": {
"key": "11",
"name": "Berlin"
}
},
{
"postalCode": "10117",
"name": "Berlin",
"municipality": {
"key": "11000000",
"name": "Berlin, Stadt",
"type": "Kreisfreie Stadt"
},
"federalState": {
"key": "11",
"name": "Berlin"
}
}
]curl "https://openplzapi.org/de/Localities?name=Berlin"const res = await fetch("https://openplzapi.org/de/Localities?name=Berlin");
const data = await res.json();
console.log(data);import requests
res = requests.get("https://openplzapi.org/de/Localities?name=Berlin")
print(res.json())/de/Localities?name=BerlinPROBEDGerman/Austrian/Swiss postal localities
/deDe — documented GET route.
/de/1De details by ID (example: 1).
/de?limit=10De — documented GET route.
/de/search?q=testSearch by query parameters.
/de/Localities?limit=5Localities — documented GET route.
We probe a documented GET and expect 2xx JSON — full uptime and health score. Export includes every documented route below.
Stable. No schema drift observed since monitoring began — the response shape has not changed under our checks.
OpenPLZ API: common questions
Is OpenPLZ API free to use?
Yes — OpenPLZ API 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 OpenPLZ API need an API key?
No — OpenPLZ API needs no API key or signup. You can call it straight away; rate limits still apply (Unpublished).
Can I call OpenPLZ API from the browser?
Yes — OpenPLZ API returns CORS headers over HTTPS, so front-end code can fetch it directly with no backend proxy. Use the fetch snippet on this page, or hit "Run live" to try it now.
Is OpenPLZ API up right now?
As of our last scheduled check, OpenPLZ API is healthy with 99.02% uptime over 90 days and a 561 ms median response. We re-probe it every sweep — the status badge and uptime chart above always show the latest.