QuickToilet combines authoritative open data from city portals with OpenStreetMap community data. Below is a full list of providers, licences, and attribution requirements.
World-wide (Belgium, Germany, France, …)
Attribution: © OpenStreetMap contributors
Primary source for Belgium-wide, Berlin, and France-wide toilet data. Share-alike applies when redistributing a derived database; map display only requires attribution.
City of Brussels (Ville de Bruxelles)
Attribution: Ville de Bruxelles
Only public urinal locations are published; full toilet dataset not available from this source.
City of Antwerp
Attribution: Stad Antwerpen
City of Liège
Attribution: Ville de Liège
The Hague (Den Haag)
CC0 — no attribution required.
Spain (Madrid, Barcelona, and all other cities)
Attribution: © OpenStreetMap contributors
Covers all of Spain via Overpass API. Dedicated open-data portals exist for some cities (e.g. datos.madrid.es) but OSM provides the broadest coverage.
Berlin (reference; actual map data via OSM)
Attribution: Senatsverwaltung für Mobilität, Verkehr, Klimaschutz und Umwelt Berlin
Official dataset is XLSX-only; QuickToilet currently pulls Berlin coverage from OSM (ODbL). The Berlin open-data source is listed here for reference.
Licence summary