Geocoding

Mapping addresses/names to geo coordinates and vice versa.

• OSM wiki: Geocoding
  • Open source geocoders

Provider

Nominatim

• OSM wiki: Nominatim
• Web interface
  • Free use (API Usage Policy)

Python library

• Docs
  • Reverse Geocoding

The Nominatim library is used for accessing a local Nominatim database. It is not meant to be used against web services of Nominatim like the one on https://nominatim.openstreetmap.org. If you need a Python library to access these web services, have a look at GeoPy.

GeoNames

User-editable geographical database available and accessible through various web services, under a Creative Commons attribution license"

• Website
• Wikipedia
• Reverse Geocoding Webservices
  • Reverse Address Geocoding Webservice
  • Germany not supported

geoapify

• Geocoding API Playground

Example reverse geocoding API call:

curl --location --request GET \
"https://api.geoapify.com/v1/geocode/reverse?lat=${LAT}&lon=${LON}&format=json&apiKey=$REVERSE_GEOCODING_API_KEY" | jq .

Apps

geoClue

• Gitlab
• Wiki
• "Geoclue was also used for (reverse-)geocoding but that functionality has been dropped in favour of the geocode-glib library."
  • geocode-glib library
    • Last release 2022