## Reverse geocode a coordinate

**post** `/api/v1/geocode/reverse`

Reverse geocode a coordinate

### Query Parameters

- `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)

### Returns

- `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`

    Reverse geocoding results ordered by distance

    - `geometry: GeoJsonGeometry`

      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.

        - `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

        - `"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.

      - `country: optional string`

        Country name. Present for reverse geocode address results.

      - `country_code: optional string`

        ISO 3166-1 alpha-2 country code

      - `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)

        - `"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.

      - `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)

        - `"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"`

      - `"Feature"`

  - `type: "FeatureCollection"`

    - `"FeatureCollection"`

### Example

```http
curl https://plaza.fyi/api/v1/geocode/reverse \
    -X POST \
    -H "Authorization: Bearer $PLAZA_API_KEY"
```

#### Response

```json
{
  "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"
}
```