Data attributions
OpenGeocoding is built on open data. When you show results, or data derived from them, to others, credit the sources. This line covers the main sources:
Data © OpenStreetMap contributors (ODbL 1.0), Overture Maps Foundation, OpenAddresses contributors, GeoNames (CC BY 4.0, modified). Details: https://opengeocoding.com/legal/attributions
Some address sources require their own credit line or licence notice. The full list of sources for the current index gives each source’s licence and, where the source states one, its credit line; places licences holds the licence texts for points of interest. If you publish results from a country or region listed there, include its credit too. These sources list a licence without a credit line, so use these:
- Spain (
es_*): Dirección General del Catastro. - Austria (
at_*): © Österreichisches Adressregister, BEV – Bundesamt für Eich- und Vermessungswesen. - Italy, under the Italian Open Data Licence 2.0: Regione Lombardia (
it_25_*), Regione Autonoma della Sardegna (it_88_*), Regione Autonoma Friuli Venezia Giulia (it_36_*), Comune di Biella (it_21_biella), Comune di Acerra (it_72_acerra).
Sources
| Source | What we use it for | Licence |
|---|---|---|
| OpenStreetMap | Streets, places, addresses and boundaries | Open Database License 1.0 |
| Overture Maps Foundation | Addresses, places, divisions and streets | Divisions and streets: ODbL. Addresses: each source’s licence, listed in Overture’s attribution guide. Places: CDLA Permissive 2.0 |
| Overture places (Meta, Microsoft, Foursquare, AllThePlaces) | House numbers in the United Kingdom and Vietnam | CDLA Permissive 2.0, Apache 2.0 (Foursquare Open Source Places, © 2024 Foursquare Labs, Inc.), CC0 1.0 (AllThePlaces) |
| OpenAddresses | Addresses in countries where Overture is sparse | Per source, see the full list. We read sources whose stated licence we classified as public domain, attribution-only or ODbL, plus sources without a stated licence that we checked against the publisher’s terms (marked “reviewed”). Some are ODbL, with the obligations described below |
| GeoNames | Postcodes, populated places and region names | CC BY 4.0 |
| Unicode CLDR | Country names | Unicode License v3 |
| Wikidata | ISO 3166-2 region codes | CC0 1.0 |
| Statistics Norway | Historical Norwegian municipality and county membership | CC BY 4.0 |
| Insee, Code officiel géographique 2015 | Historical French commune membership | Licence Ouverte 2.0 |
| ANPR archivio storico dei comuni (Ministero dell’Interno, Istat) | Historical Italian municipality membership | CC BY 4.0 |
Software
Address parsing uses libpostal (MIT). The demo map uses MapLibre GL JS (BSD-3-Clause) with tiles from OpenFreeMap, © OpenMapTiles, data © OpenStreetMap contributors.
About ODbL
ODbL obligations depend on the source data and how you use it. Public use of a produced work can require attribution; public use of a derivative database can also trigger share-alike and database-access obligations. API access does not waive those requirements, and not every use of API results can be classified the same way. Check the applicable source licences and obtain legal advice for your use case. The OpenStreetMap Foundation’s Geocoding Guideline explains when results stored with your own data stay a produced work.
Our index is a derivative database of OpenStreetMap, of Overture’s ODbL themes and of the ODbL OpenAddresses sources. As section 4.6 of the ODbL requires, we offer the method we use to make it: the index builder and its instructions are public in the OpenGeocoding repository, and the source releases are listed in the full list of sources.