which are translated into specific OpenStreetMap (OSM) tags (e.g. Pub => `amenity=pub`).
This can be used to narrow down the kind of objects to be returned.
-!!! warning
+!!! note
Special phrases are not suitable to query all objects of a certain type in an
area. Nominatim will always just return a collection of the best matches. To
download OSM data by object type, use the [Overpass API](https://overpass-api.de/).
-## Parameters
+## Endpoint
The search API has the following format:
https://nominatim.openstreetmap.org/search?<params>
```
-The search term may be specified with two different sets of parameters:
+!!! danger "Deprecation warning"
+ The API can also be used with the URL
+ `https://nominatim.openstreetmap.org/search.php`. This is now deprecated
+ and will be removed in future versions.
+
+The query term can be given in two different forms: free-form or structured.
+
+### Free-form query
+
+| Parameter | Value |
+|-----------| ----- |
+| q | Free-form query string to search for |
+
+In this form, the query can be unstructured.
+Free-form queries are processed first left-to-right and then right-to-left if that fails. So you may search for
+[pilkington avenue, birmingham](https://nominatim.openstreetmap.org/search?q=pilkington+avenue,birmingham) as well as for
+[birmingham, pilkington avenue](https://nominatim.openstreetmap.org/search?q=birmingham,+pilkington+avenue).
+Commas are optional, but improve performance by reducing the complexity of the search.
-* `q=<query>`
+The free-form may also contain special phrases to describe the type of
+place to be returned or a coordinate to search close to a position.
- Free-form query string to search for.
- Free-form queries are processed first left-to-right and then right-to-left if that fails. So you may search for
- [pilkington avenue, birmingham](//nominatim.openstreetmap.org/search?q=pilkington+avenue,birmingham) as well as for
- [birmingham, pilkington avenue](//nominatim.openstreetmap.org/search?q=birmingham,+pilkington+avenue).
- Commas are optional, but improve performance by reducing the complexity of the search.
+### Structured query
+| Parameter | Value |
+|----------- | ----- |
+| amenity | name and/or type of POI |
+| street | housenumber and streetname |
+| city | city |
+| county | county |
+| state | state |
+| country | country |
+| postalcode | postal code |
-* `street=<housenumber> <streetname>`
-* `city=<city>`
-* `county=<county>`
-* `state=<state>`
-* `country=<country>`
-* `postalcode=<postalcode>`
+The structured form of the search query allows to lookup up an address
+that is already split into its components. Each parameter represents a field
+of the address. All parameters are optional. You should only use the ones
+that are relevant for the address you want to geocode.
- Alternative query string format split into several parameters for structured requests.
- Structured requests are faster but are less robust against alternative
- OSM tagging schemas. **Do not combine with** `q=<query>` **parameter**.
+!!! Attention
+ Cannot be combined with the `q=<query>` parameter. Newer versions of
+ the API will return an error if you do so. Older versions simply return
+ unexpected results.
-Both query forms accept the additional parameters listed below.
+## Parameters
+
+The following parameters can be used to further restrict the search and
+change the output. They are usable for both forms of the search query.
### Output format
-* `format=[xml|json|jsonv2|geojson|geocodejson]`
+| Parameter | Value | Default |
+|-----------| ----- | ------- |
+| format | one of: `xml`, `json`, `jsonv2`, `geojson`, `geocodejson` | `jsonv2` |
+
+See [Place Output Formats](Output.md) for details on each format.
+
+!!! note
+ The Nominatim service at
+ [https://nominatim.openstreetmap.org](https://nominatim.openstreetmap.org)
+ has a different default behaviour for historical reasons. When the
+ `format` parameter is omitted, the request will be forwarded to the Web UI.
+
-See [Place Output Formats](Output.md) for details on each format. (Default: jsonv2)
+| Parameter | Value | Default |
+|-----------| ----- | ------- |
+| json_callback | function name | _unset_ |
-* `json_callback=<string>`
+When given, then JSON output will be wrapped in a callback function with
+the given name. See [JSONP](https://en.wikipedia.org/wiki/JSONP) for more
+information.
-Wrap JSON output in a callback function ([JSONP](https://en.wikipedia.org/wiki/JSONP)) i.e. `<string>(<json>)`.
Only has an effect for JSON output formats.
+| Parameter | Value | Default |
+|-----------| ----- | ------- |
+| limit | number | 10 |
+
+Limit the maximum number of returned results. Cannot be more than 40.
+Nominatim may decide to return less results than given, if additional
+results do not sufficiently match the query.
+
+
### Output details
-* `addressdetails=[0|1]`
+| Parameter | Value | Default |
+|-----------| ----- | ------- |
+| addressdetails | 0 or 1 | 0 |
-Include a breakdown of the address into elements. (Default: 0)
+When set to 1, include a breakdown of the address into elements.
+The exact content of the address breakdown depends on the output format.
+!!! tip
+ If you are interested in a stable classification of address categories
+ (suburb, city, state, etc), have a look at the `geocodejson` format.
+ All other formats return classifications according to OSM tagging.
+ There is a much larger set of categories and they are not always consistent,
+ which makes them very hard to work with.
-* `extratags=[0|1]`
-Include additional information in the result if available,
-e.g. wikipedia link, opening hours. (Default: 0)
+| Parameter | Value | Default |
+|-----------| ----- | ------- |
+| extratags | 0 or 1 | 0 |
+When set to 1, the response include any additional information in the result
+that is available in the database, e.g. wikipedia link, opening hours.
-* `namedetails=[0|1]`
-Include a list of alternative names in the results. These may include
-language variants, references, operator and brand. (Default: 0)
+| Parameter | Value | Default |
+|-----------| ----- | ------- |
+| namedetails | 0 or 1 | 0 |
+
+When set to 1, include a full list of names for the result. These may include
+language variants, older names, references and brand.
### Language of results
-* `accept-language=<browser language string>`
+| Parameter | Value | Default |
+|-----------| ----- | ------- |
+| accept-language | browser language string | content of "Accept-Language" HTTP header |
+
+Preferred language order for showing search results. This may either be
+a simple comma-separated list of language codes or have the same format
+as the ["Accept-Language" HTTP header](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Accept-Language).
-Preferred language order for showing search results, overrides the value
-specified in the ["Accept-Language" HTTP header](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Accept-Language).
-Either use a standard RFC2616 accept-language string or a simple
-comma-separated list of language codes.
+!!! tip
+ First-time users of Nominatim tend to be confused that they get different
+ results when using Nominatim in the browser versus in a command-line tool
+ like wget or curl. The command-line tools
+ usually don't send any Accept-Language header, prompting Nominatim
+ to show results in the local language. Browsers on the contrary always
+ send the currently chosen browser language.
-### Result limitation
+### Result restriction
-* `countrycodes=<countrycode>[,<countrycode>][,<countrycode>]...`
+There are two ways to influence the results. *Filters* exclude certain
+kinds of results completely. *Boost parameters* only change the order of the
+results and thus give a preference to some results over others.
-Limit search results to one or more countries. `<countrycode>` must be the
-[ISO 3166-1alpha2](https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2) code,
-e.g. `gb` for the United Kingdom, `de` for Germany.
+| Parameter | Value | Default |
+|-----------| ----- | ------- |
+| countrycodes | comma-separated list of country codes | _unset_ |
+
+Filter that limits the search results to one or more countries.
+The country code must be the
+[ISO 3166-1alpha2](https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2) code
+of the country, e.g. `gb` for the United Kingdom, `de` for Germany.
Each place in Nominatim is assigned to one country code based
on OSM country boundaries. In rare cases a place may not be in any country
-at all, for example, in international waters.
+at all, for example, when it is in international waters. These places are
+also excluded when the filter is set.
+
+!!! Note
+ This parameter should not be confused with the 'country' parameter of
+ the structured query. The 'country' parameter contains a search term
+ and will be handled with some fuzziness. The `countrycodes` parameter
+ is a hard filter and as such should be preferred. Having both parameters
+ in the same query will work. If the parameters contradict each other,
+ the search will come up empty.
+
+| Parameter | Value | Default |
+|-----------| ----- | ------- |
+| layer | comma-separated list of: `address`, `poi`, `railway`, `natural`, `manmade` | _unset_ (no restriction) |
+
+The layer filter allows to select places by themes.
-* `exclude_place_ids=<place_id,[place_id],[place_id]`
+The `address` layer contains all places that make up an address:
+address points with house numbers, streets, inhabited places (suburbs, villages,
+cities, states tec.) and administrative boundaries.
+
+The `poi` layer selects all point of interest. This includes classic POIs like
+restaurants, shops, hotels but also less obvious features like recycling bins,
+guideposts or benches.
+
+The `railway` layer includes railway infrastructure like tracks.
+Note that in Nominatim's standard configuration, only very few railway
+features are imported into the database.
+
+The `natural` layer collects features like rivers, lakes and mountains while
+the `manmade` layer functions as a catch-all for features not covered by the
+other layers.
+
+| Parameter | Value | Default |
+|-----------| ----- | ------- |
+| featureType | one of: `country`, `state`, `city`, `settlement` | _unset_ |
+
+The featureType allows to have a more fine-grained selection for places
+from the address layer. Results can be restricted to places that make up
+the 'state', 'country' or 'city' part of an address. A featureType of
+settlement selects any human inhabited feature from 'state' down to
+'neighbourhood'.
+
+When featureType is set, then results are automatically restricted
+to the address layer (see above).
+
+!!! tip
+ Instead of using the featureType filters `country`, `state` or `city`,
+ you can also use a structured query without the finer-grained parameters
+ amenity or street.
+
+| Parameter | Value | Default |
+|-----------| ----- | ------- |
+| exclude_place_ids | comma-separated list of place ids |
If you do not want certain OSM objects to appear in the search
result, give a comma separated list of the `place_id`s you want to skip.
previous query only returned a few results, then including those here would
cause the search to return other, less accurate, matches (if possible).
+| Parameter | Value | Default |
+|-----------| ----- | ------- |
+| viewbox | `<x1>,<y1>,<x2>,<y2>` | _unset_ |
-* `limit=<integer>`
-
-Limit the number of returned results. (Default: 10, Maximum: 50)
+Boost parameter which focuses the search on the given area.
+Any two corner points of the box are accepted as long as they make a proper
+box. `x` is longitude, `y` is latitude.
+| Parameter | Value | Default |
+|-----------| ----- | ------- |
+| bounded | 0 or 1 | 0 |
-* `viewbox=<x1>,<y1>,<x2>,<y2>`
+When set to 1, then it turns the 'viewbox' parameter (see above) into
+a filter parameter, excluding any results outside the viewbox.
-The preferred area to find search results. Any two corner points of the box
-are accepted as long as they span a real box. `x` is longitude,
-`y` is latitude.
-
-
-* `bounded=[0|1]`
-
-When a viewbox is given, restrict the result to items contained within that
-viewbox (see above). When `viewbox` and `bounded=1` are given, an amenity
-only search is allowed. Give the special keyword for the amenity in square
+When `bounded=1` is given and the viewbox is small enough, then an amenity-only
+search is allowed. Give the special keyword for the amenity in square
brackets, e.g. `[pub]` and a selection of objects of this type is returned.
-There is no guarantee that the result is complete. (Default: 0)
+There is no guarantee that the result returns all objects in the area.
### Polygon output
-* `polygon_geojson=1`
-* `polygon_kml=1`
-* `polygon_svg=1`
-* `polygon_text=1`
+| Parameter | Value | Default |
+|-----------| ----- | ------- |
+| polygon_geojson | 0 or 1 | 0 |
+| polygon_kml | 0 or 1 | 0 |
+| polygon_svg | 0 or 1 | 0 |
+| polygon_text | 0 or 1 | 0 |
-Output geometry of results as a GeoJSON, KML, SVG or WKT. Only one of these
-options can be used at a time. (Default: 0)
+Add the full geometry of the place to the result output. Output formats
+in GeoJSON, KML, SVG or WKT are supported. Only one of these
+options can be used at a time.
-* `polygon_threshold=0.0`
+| Parameter | Value | Default |
+|-----------| ----- | ------- |
+| polygon_threshold | floating-point number | 0.0 |
-Return a simplified version of the output geometry. The parameter is the
+When one of the polygon_* outputs is chosen, return a simplified version
+of the output geometry. The parameter describes the
tolerance in degrees with which the geometry may differ from the original
-geometry. Topology is preserved in the result. (Default: 0.0)
+geometry. Topology is preserved in the geometry.
### Other
-* `email=<valid email address>`
+| Parameter | Value | Default |
+|-----------| ----- | ------- |
+| email | valid email address | _unset_ |
If you are making large numbers of request please include an appropriate email
-address to identify your requests. See Nominatim's [Usage Policy](https://operations.osmfoundation.org/policies/nominatim/) for more details.
+address to identify your requests. See Nominatim's
+[Usage Policy](https://operations.osmfoundation.org/policies/nominatim/) for more details.
-* `dedupe=[0|1]`
+| Parameter | Value | Default |
+|-----------| ----- | ------- |
+| dedupe | 0 or 1 | 1 |
Sometimes you have several objects in OSM identifying the same place or
object in reality. The simplest case is a street being split into many
different OSM ways due to different characteristics. Nominatim will
-attempt to detect such duplicates and only return one match unless
-this parameter is set to 0. (Default: 1)
+attempt to detect such duplicates and only return one match. Setting
+this parameter to 0 disables this deduplication mechanism and
+ensures that all results are returned.
-* `debug=[0|1]`
+| Parameter | Value | Default |
+|-----------| ----- | ------- |
+| debug | 0 or 1 | 0 |
Output assorted developer debug information. Data on internals of Nominatim's
-"Search Loop" logic, and SQL queries. The output is (rough) HTML format.
-This overrides the specified machine readable format. (Default: 0)
-
+"search loop" logic, and SQL queries. The output is HTML format.
+This overrides the specified machine readable format.
## Examples
-##### XML with kml polygon
+##### XML with KML polygon
-* [https://nominatim.openstreetmap.org/search?q=135+pilkington+avenue,+birmingham&format=xml&polygon_geojson=1&addressdetails=1](https://nominatim.openstreetmap.org/search?q=135+pilkington+avenue,+birmingham&format=xml&polygon_geojson=1&addressdetails=1)
+* [https://nominatim.openstreetmap.org/search?q=135+pilkington+avenue,+birmingham&format=xml&polygon_kml=1&addressdetails=1](https://nominatim.openstreetmap.org/search?q=135+pilkington+avenue,+birmingham&format=xml&polygon_kml=1&addressdetails=1)
```xml
- <searchresults timestamp="Sat, 07 Nov 09 14:42:10 +0000" querystring="135 pilkington, avenue birmingham" polygon="true">
- <place
- place_id="1620612" osm_type="node" osm_id="452010817"
- boundingbox="52.548641204834,52.5488433837891,-1.81612110137939,-1.81592094898224"
- lat="52.5487429714954" lon="-1.81602098644987"
- display_name="135, Pilkington Avenue, Wylde Green, City of Birmingham, West Midlands (county), B72, United Kingdom"
- class="place" type="house">
- <geokml>
- <Polygon>
- <outerBoundaryIs>
- <LinearRing>
- <coordinates>-1.816513,52.548756599999997 -1.816434,52.548747300000002 -1.816429,52.5487629 -1.8163717,52.548756099999999 -1.8163464,52.548834599999999 -1.8164599,52.548848100000001 -1.8164685,52.5488213 -1.8164913,52.548824000000003 -1.816513,52.548756599999997</coordinates>
- </LinearRing>
- </outerBoundaryIs>
- </Polygon>
- </geokml>
- <house_number>135</house_number>
- <road>Pilkington Avenue</road>
- <village>Wylde Green</village>
- <town>Sutton Coldfield</town>
- <city>City of Birmingham</city>
- <county>West Midlands (county)</county>
- <postcode>B72</postcode>
- <country>United Kingdom</country>
- <country_code>gb</country_code>
- </place>
- </searchresults>
+<?xml version="1.0" encoding="UTF-8" ?>
+<searchresults timestamp="Tue, 08 Aug 2023 15:45:41 +00:00"
+ attribution="Data © OpenStreetMap contributors, ODbL 1.0. http://osm.org/copyright"
+ querystring="135 pilkington avenue, birmingham"
+ more_url="https://nominatim.openstreetmap.org/search?q=135+pilkington+avenue%2C+birmingham&polygon_kml=1&addressdetails=1&limit=20&exclude_place_ids=125279639&format=xml"
+ exclude_place_ids="125279639">
+ <place place_id="125279639"
+ osm_type="way"
+ osm_id="90394480"
+ lat="52.5487921"
+ lon="-1.8164308"
+ boundingbox="52.5487473,52.5488481,-1.8165130,-1.8163464"
+ place_rank="30"
+ address_rank="30"
+ display_name="135, Pilkington Avenue, Maney, Sutton Coldfield, Wylde Green, Birmingham, West Midlands Combined Authority, England, B72 1LH, United Kingdom"
+ class="building"
+ type="residential"
+ importance="9.999999994736442e-08">
+ <geokml>
+ <Polygon>
+ <outerBoundaryIs>
+ <LinearRing>
+ <coordinates>-1.816513,52.5487566 -1.816434,52.5487473 -1.816429,52.5487629 -1.8163717,52.5487561 -1.8163464,52.5488346 -1.8164599,52.5488481 -1.8164685,52.5488213 -1.8164913,52.548824 -1.816513,52.5487566</coordinates>
+ </LinearRing>
+ </outerBoundaryIs>
+ </Polygon>
+ </geokml>
+ <house_number>135</house_number>
+ <road>Pilkington Avenue</road>
+ <hamlet>Maney</hamlet>
+ <town>Sutton Coldfield</town>
+ <village>Wylde Green</village>
+ <city>Birmingham</city>
+ <ISO3166-2-lvl8>GB-BIR</ISO3166-2-lvl8>
+ <state_district>West Midlands Combined Authority</state_district>
+ <state>England</state>
+ <ISO3166-2-lvl4>GB-ENG</ISO3166-2-lvl4>
+ <postcode>B72 1LH</postcode>
+ <country>United Kingdom</country>
+ <country_code>gb</country_code>
+ </place>
+</searchresults>
```
##### JSON with SVG polygon
-[https://nominatim.openstreetmap.org/search/Unter%20den%20Linden%201%20Berlin?format=json&addressdetails=1&limit=1&polygon_svg=1](https://nominatim.openstreetmap.org/search/Unter%20den%20Linden%201%20Berlin?format=json&addressdetails=1&limit=1&polygon_svg=1)
+[https://nominatim.openstreetmap.org/search?q=Unter%20den%20Linden%201%20Berlin&format=json&addressdetails=1&limit=1&polygon_svg=1](https://nominatim.openstreetmap.org/search?q=Unter%20den%20Linden%201%20Berlin&format=json&addressdetails=1&limit=1&polygon_svg=1)
```json
- {
- "address": {
- "city": "Berlin",
- "city_district": "Mitte",
- "construction": "Unter den Linden",
- "continent": "European Union",
- "country": "Deutschland",
- "country_code": "de",
- "house_number": "1",
- "neighbourhood": "Scheunenviertel",
- "postcode": "10117",
- "public_building": "Kommandantenhaus",
- "state": "Berlin",
- "suburb": "Mitte"
- },
- "boundingbox": [
- "52.5170783996582",
- "52.5173187255859",
- "13.3975105285645",
- "13.3981599807739"
- ],
- "class": "amenity",
- "display_name": "Kommandantenhaus, 1, Unter den Linden, Scheunenviertel, Mitte, Berlin, 10117, Deutschland, European Union",
- "importance": 0.73606775332943,
- "lat": "52.51719785",
- "licence": "Data \u00a9 OpenStreetMap contributors, ODbL 1.0. https://www.openstreetmap.org/copyright",
- "lon": "13.3978352028938",
- "osm_id": "15976890",
- "osm_type": "way",
- "place_id": "30848715",
- "svg": "M 13.397511 -52.517283599999999 L 13.397829400000001 -52.517299800000004 13.398131599999999 -52.517315099999998 13.398159400000001 -52.517112099999999 13.3975388 -52.517080700000001 Z",
- "type": "public_building"
- }
+[
+ {
+ "address": {
+ "ISO3166-2-lvl4": "DE-BE",
+ "borough": "Mitte",
+ "city": "Berlin",
+ "country": "Deutschland",
+ "country_code": "de",
+ "historic": "Kommandantenhaus",
+ "house_number": "1",
+ "neighbourhood": "Friedrichswerder",
+ "postcode": "10117",
+ "road": "Unter den Linden",
+ "suburb": "Mitte"
+ },
+ "boundingbox": [
+ "52.5170798",
+ "52.5173311",
+ "13.3975116",
+ "13.3981577"
+ ],
+ "class": "historic",
+ "display_name": "Kommandantenhaus, 1, Unter den Linden, Friedrichswerder, Mitte, Berlin, 10117, Deutschland",
+ "importance": 0.8135042058306902,
+ "lat": "52.51720765",
+ "licence": "Data © OpenStreetMap contributors, ODbL 1.0. https://osm.org/copyright",
+ "lon": "13.397834399325466",
+ "osm_id": 15976890,
+ "osm_type": "way",
+ "place_id": 108681845,
+ "svg": "M 13.3975116 -52.5172905 L 13.397549 -52.5170798 13.397715 -52.5170906 13.3977122 -52.5171064 13.3977392 -52.5171086 13.3977417 -52.5170924 13.3979655 -52.5171069 13.3979623 -52.5171233 13.3979893 -52.5171248 13.3979922 -52.5171093 13.3981577 -52.5171203 13.398121 -52.5173311 13.3978115 -52.5173103 Z",
+ "type": "house"
+ }
+]
```
##### JSON with address details
-[https://nominatim.openstreetmap.org/?addressdetails=1&q=bakery+in+berlin+wedding&format=json&limit=1](https://nominatim.openstreetmap.org/?addressdetails=1&q=bakery+in+berlin+wedding&format=json&limit=1)
+[https://nominatim.openstreetmap.org/search?addressdetails=1&q=bakery+in+berlin+wedding&format=jsonv2&limit=1](https://nominatim.openstreetmap.org/search?addressdetails=1&q=bakery+in+berlin+wedding&format=jsonv2&limit=1)
```json
- {
- "address": {
- "bakery": "B\u00e4cker Kamps",
- "city_district": "Mitte",
- "continent": "European Union",
- "country": "Deutschland",
- "country_code": "de",
- "footway": "Bahnsteig U6",
- "neighbourhood": "Sprengelkiez",
- "postcode": "13353",
- "state": "Berlin",
- "suburb": "Wedding"
- },
- "boundingbox": [
- "52.5460929870605",
- "52.5460968017578",
- "13.3591794967651",
- "13.3591804504395"
- ],
- "class": "shop",
- "display_name": "B\u00e4cker Kamps, Bahnsteig U6, Sprengelkiez, Wedding, Mitte, Berlin, 13353, Deutschland, European Union",
- "icon": "https://nominatim.openstreetmap.org/images/mapicons/shopping_bakery.p.20.png",
- "importance": 0.201,
- "lat": "52.5460941",
- "licence": "Data \u00a9 OpenStreetMap contributors, ODbL 1.0. https://www.openstreetmap.org/copyright",
- "lon": "13.35918",
- "osm_id": "317179427",
- "osm_type": "node",
- "place_id": "1453068",
- "type": "bakery"
- }
+[
+ {
+ "address": {
+ "ISO3166-2-lvl4": "DE-BE",
+ "borough": "Mitte",
+ "city": "Berlin",
+ "country": "Deutschland",
+ "country_code": "de",
+ "neighbourhood": "Sprengelkiez",
+ "postcode": "13347",
+ "road": "Lindower Straße",
+ "shop": "Ditsch",
+ "suburb": "Wedding"
+ },
+ "addresstype": "shop",
+ "boundingbox": [
+ "52.5427201",
+ "52.5427654",
+ "13.3668619",
+ "13.3669442"
+ ],
+ "category": "shop",
+ "display_name": "Ditsch, Lindower Straße, Sprengelkiez, Wedding, Mitte, Berlin, 13347, Deutschland",
+ "importance": 9.99999999995449e-06,
+ "lat": "52.54274275",
+ "licence": "Data © OpenStreetMap contributors, ODbL 1.0. http://osm.org/copyright",
+ "lon": "13.36690305710228",
+ "name": "Ditsch",
+ "osm_id": 437595031,
+ "osm_type": "way",
+ "place_id": 204751033,
+ "place_rank": 30,
+ "type": "bakery"
+ }
+]
```
##### GeoJSON
projects / nominatim.git / blobdiff