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API Reference
Geocode

Reverse geocode a coordinate

POST/api/v1/geocode/reverse

Reverse geocode a coordinate

Query ParametersExpand Collapse
format: optional string

Response format: json (default), geojson, csv, ndjson

lang: optional string

Language code for localized names (e.g. en, de, fr)

lat: optional number

Legacy shorthand. Latitude. Use near param instead.

layer: optional string

Filter by layer: house or poi

limit: optional number

Maximum results (default 1, max 20)

lng: optional number

Legacy shorthand. Longitude. Use near param instead.

near: optional string

Point geometry for reverse geocode (lat,lng or GeoJSON). Alternative to lat/lng params.

radius: optional number

Search radius in meters (default 200, max 5000)

ReturnsExpand Collapse
ReverseGeocodeResult = object { features, type }

GeoJSON FeatureCollection of reverse geocoding results, ordered by distance from the query point. Content-Type: application/geo+json.

features: array of GeocodingFeature { geometry, properties, type }

Reverse geocoding results ordered by distance

geometry: GeoJsonGeometry { coordinates, type }

GeoJSON Geometry object per RFC 7946. Coordinates use [longitude, latitude] order. 3D coordinates [lng, lat, elevation] are used for elevation endpoints.

coordinates: array of number or array of array of number or array of array of array of number or array of array of array of array of number

Coordinates array. Nesting depth varies by geometry type: Point = [lng, lat], LineString = [[lng, lat], ...], Polygon = [[[lng, lat], ...], ...], etc.

One of the following:
Point = array of number

[longitude, latitude] or [longitude, latitude, elevation]

LineStringOrMultiPoint = array of array of number

Array of [lng, lat] positions

PolygonOrMultiLineString = array of array of array of number

Array of linear rings / line strings

MultiPolygon = array of array of array of array of number

Array of polygons

type: "Point" or "LineString" or "Polygon" or 3 more

Geometry type

One of the following:
"Point"
"LineString"
"Polygon"
"MultiPoint"
"MultiLineString"
"MultiPolygon"
properties: object { display_name, category, city, 18 more }

Geocoding result properties

display_name: string

Formatted address or place name

category: optional string

POI category (e.g. restaurant, cafe, park). Present for place results.

city: optional string

City or town name. Present for address results.

confidence: optional number

Interpolation confidence (0-1). Present only for interpolated results.

maximum1
minimum0
country: optional string

Country name. Present for reverse geocode address results.

country_code: optional string

ISO 3166-1 alpha-2 country code

maxLength2
minLength2
distance_m: optional number

Distance from the query point in meters (reverse geocode / nearby only)

full_address: optional string

Complete formatted address from the database. Present for reverse geocode address results.

house_number: optional string

House or building number. Present for address and interpolated results.

interpolated: optional boolean

Whether this result was estimated by address interpolation rather than an exact database match.

name: optional string

Place name (raw). Present for reverse geocode place results.

osm_id: optional number

OpenStreetMap element ID (null for interpolated results)

osm_type: optional "node" or "way" or "relation"

OSM element type (node, way, relation)

One of the following:
"node"
"way"
"relation"
postcode: optional string

Postal code. Present for reverse geocode address results.

score: optional number

Relevance score (higher is better). Incorporates text match quality, spatial proximity boost, and popularity signals. Not bounded to 0-1.

minimum0
source: optional "structured" or "bm25" or "fuzzy" or 3 more

Result source indicating how the result was found: structured (exact field match), bm25 (full-text search), fuzzy (trigram similarity), address (reverse geocode address), place (reverse geocode POI), interpolation (estimated from neighboring addresses)

One of the following:
"structured"
"bm25"
"fuzzy"
"address"
"place"
"interpolation"
state: optional string

State or province name. Present for reverse geocode address results.

street: optional string

Street name. Present for address and interpolated results.

subcategory: optional string

POI subcategory. Present for place results.

tags: optional map[string]

Raw OSM tags. Present for place results.

wikipedia: optional string

Wikipedia article reference (e.g. en:Eiffel Tower). Present for notable places.

type: "Feature"
type: "FeatureCollection"

Reverse geocode a coordinate

curl https://plaza.fyi/api/v1/geocode/reverse \
    -X POST \
    -H "Authorization: Bearer $PLAZA_API_KEY"
{
  "features": [
    {
      "geometry": {
        "coordinates": [
          2.3522,
          48.8566
        ],
        "type": "Point"
      },
      "properties": {
        "display_name": "221B Baker Street, London, NW1 6XE, United Kingdom",
        "category": "restaurant",
        "city": "London",
        "confidence": 0,
        "country": "United Kingdom",
        "country_code": "GB",
        "distance_m": 0,
        "full_address": "221B Baker Street, London, NW1 6XE, United Kingdom",
        "house_number": "221B",
        "interpolated": true,
        "name": "Eiffel Tower",
        "osm_id": 21154906,
        "osm_type": "node",
        "postcode": "NW1 6XE",
        "score": 0,
        "source": "structured",
        "state": "England",
        "street": "Baker Street",
        "subcategory": "italian",
        "tags": {
          "foo": "string"
        },
        "wikipedia": "en:Eiffel Tower"
      },
      "type": "Feature"
    }
  ],
  "type": "FeatureCollection"
}
Returns Examples
{
  "features": [
    {
      "geometry": {
        "coordinates": [
          2.3522,
          48.8566
        ],
        "type": "Point"
      },
      "properties": {
        "display_name": "221B Baker Street, London, NW1 6XE, United Kingdom",
        "category": "restaurant",
        "city": "London",
        "confidence": 0,
        "country": "United Kingdom",
        "country_code": "GB",
        "distance_m": 0,
        "full_address": "221B Baker Street, London, NW1 6XE, United Kingdom",
        "house_number": "221B",
        "interpolated": true,
        "name": "Eiffel Tower",
        "osm_id": 21154906,
        "osm_type": "node",
        "postcode": "NW1 6XE",
        "score": 0,
        "source": "structured",
        "state": "England",
        "street": "Baker Street",
        "subcategory": "italian",
        "tags": {
          "foo": "string"
        },
        "wikipedia": "en:Eiffel Tower"
      },
      "type": "Feature"
    }
  ],
  "type": "FeatureCollection"
}