Pricing

Pay per usage

Nominatim OSM Geocoder

Forward geocode (address → coordinates) and reverse geocode (coordinates → address) using the official Nominatim OpenStreetMap API. Keyless, no auth required — just a proper User-Agent header.

Pricing

Pay per usage

Rating

0.0

(0)

Developer

Bruno Finger

Actor stats

Bookmarked

Total users

Monthly active users

3 days ago

Last modified

Features

Forward geocoding: Convert addresses like "Berlin" or "1600 Pennsylvania Ave NW, Washington DC" to latitude/longitude coordinates
Reverse geocoding: Convert coordinate pairs like "52.52,13.405" to human-readable addresses
Structured address breakdown: Optional detailed address components (street, city, country, postcode, etc.)
Multiple results per query: Configure how many results to return per forward geocode query
PAY_PER_EVENT pricing: Charged per geocoded address or reverse-geocoded coordinate pair

Input

Field	Type	Description
`queries`	string[]	List of addresses to forward geocode (e.g., `["Berlin", "Tokyo, Japan"]`)
`reverseQueries`	string[]	List of coordinate pairs to reverse geocode (e.g., `["52.52,13.405", "40.7128,-74.0060"]`)
`limit`	integer	Max results per forward query (default: 1, max: 50)
`addressDetails`	boolean	Include structured address components (default: true)

Output

Each result includes:

query — the input query string
resultIndex — index of this result (for forward queries with multiple results)
place_id — Nominatim place ID
osm_type — OSM object type (node, way, relation)
osm_id — OSM object ID
lat / lon — coordinates
display_name — full human-readable address
class / type — OSM classification (e.g., boundary/administrative, highway/secondary)
importance — result relevance score
address — structured address breakdown (when addressDetails=true)

Usage Example

{
  "queries": ["Berlin", "New York, USA", "Eiffel Tower"],
  "reverseQueries": ["52.52,13.405", "40.7128,-74.0060"],
  "limit": 2,
  "addressDetails": true
}

Rate Limits

Nominatim enforces a 1 request per second courtesy limit. This actor automatically respects that by adding a 1.1 second delay between requests.

Data Source

OpenStreetMap Nominatim API — the official OSM geocoding service.

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