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Nominatim (OpenStreetMap) API

Forward and reverse geocoding on OpenStreetMap data.
Status
Working
API key
Not needed
Browser calls
Runs in the browser
Latency
202 ms
Docs
nominatim.org ↗

Build snapshot, not live. One verifier run on , from the machine that built this site. How we check

Example request

GEThttps://nominatim.openstreetmap.org/search?q=Berlin&format=json&limit=1

Sent from your browser straight to nominatim.openstreetmap.org. No proxy: this site never sees the request or the answer.

Copy the request

Shell
curl -s 'https://nominatim.openstreetmap.org/search?q=Berlin&format=json&limit=1'

Response stored by the verifier

This is what nominatim.openstreetmap.org answered when the verifier sent the request above on : HTTP 200, application/json. Arrays are cut to two items and long strings are shortened. It comes from the build snapshot.

application/json · stored
[
  {
    "place_id": 145549253,
    "licence": "Data © OpenStreetMap contributors, ODbL 1.0. http://osm.org/copyright",
    "osm_type": "relation",
    "osm_id": 62422,
    "lat": "52.5173885",
    "lon": "13.3951309",
    "class": "boundary",
    "type": "administrative",
    "place_rank": 8,
    "importance": 0.8522196536088086,
    "addresstype": "city",
    "name": "Berlin",
    "display_name": "Berlin, Deutschland",
    "boundingbox": [
      "52.3382448",
      "52.6755087"
    ]
  }
]

Availability

Up 1 of 1 day checked · 30-day window

What counts as up for this API: an answer within five seconds, a 2xx status, and the body must be a JSON array with at least one item.

Last check: — passed, HTTP 200 in 202 ms.

The check runs from our infrastructure, not from where you are. If you need certainty, send the request yourself above. How the verifier works.

Used in these collections

Questions

Does the Nominatim (OpenStreetMap) API need an API key?

No. The sample request on this page was answered without a key, token or account. Note: The public instance allows at most one request per second and forbids bulk geocoding.

Can I call the Nominatim (OpenStreetMap) API from the browser?

Yes. nominatim.openstreetmap.org answered our verifier with an Access-Control-Allow-Origin header on Oct 3, 2026, so a fetch call from a web page can read the response.

Is the Nominatim (OpenStreetMap) API working?

At the check on Oct 3, 2026 it returned HTTP 200 with the expected data in 202 ms. The status at the top of this page shows the most recent result we have.

What is the Nominatim (OpenStreetMap) API good for?

Forward and reverse geocoding on OpenStreetMap data. It is part of our collection "Free APIs for maps and places": The reference OpenStreetMap geocoder, forward and reverse.