Geocoder / forward geocoder / address to lat-lng / address-to-coordinates / postal-code lookup / place-name resolver / Nominatim geocoder / OpenStreetMap geocoding API. Converts a free-form address, postal code, place name, or POI into latitude/longitude plus a structured address breakdown (house number, road, city, county, state, postcode, country) and bounding box. Returns a ranked list of matches with importance scores. Backed by OSM Nominatim — global coverage, attribution required by ODbL.