Map Source Licensing¶

The tile server aggregates map data from multiple third-party providers. Each provider has its own licence terms. You are responsible for complying with the licence terms of each source you use.

Free / Open Data Sources¶

These sources are available without cost and permit offline caching.

Provider	Source(s)	Licence	Commercial Use	Link
OpenStreetMap	Standard	ODbL 1.0	Yes (with attribution)	Tile Policy
OpenTopoMap	Topographic	CC-BY-SA 3.0	Yes (share-alike)	About
OpenSeaMap	Base Chart, Seamarks	CC-BY-SA 2.0	Yes (share-alike)	OpenSeaMap
CycleOSM	Cycle Map	ODbL 1.0	Yes (with attribution)	CycleOSM
CartoDB	Dark Matter, Positron	CC-BY 3.0	Yes (with attribution)	Attribution
MTBMap.cz	MTB Map Europe	CC-BY-SA 3.0	Yes (share-alike)	MTBMap
WaymarkedTrails	Cycle Routes	CC-BY-SA 3.0	Yes (share-alike)	WaymarkedTrails

Government / Public Sector Sources (Free)¶

These sources are provided by government agencies under open data licences.

Provider	Source(s)	Licence	Commercial Use	Link
Copernicus / ESA	Sentinel-2 True Color, False Color	CDSE Terms	Yes (free, with attribution)	CDSE
Geoscience Australia	National Base Map, Topographic, Satellite Imagery	CC-BY 4.0	Yes (with attribution)	GA
USGS	Basemap, Imagery, Topo, Shaded Relief	Public Domain (US Gov)	Yes	National Map
NAIP / USDA	CONUS Prime, National Map	Public Domain (US Gov)	Yes	NAIP
FEMA	Flood Hazard Zones	Public Domain (US Gov)	Yes	FEMA MSC
NRCan	Canada Base Map, Toporama	OGL Canada	Yes	Open Canada
NLS Finland	MML	CC-BY 4.0	Yes (with attribution)	NLS
Poland GUGiK	Ortofoto WMTS	Open Gov Data	Yes	Geoportal

Commercial / Restricted Sources¶

Licence Restrictions

These sources have restrictive Terms of Service. Bulk downloading, caching, or offline use may violate their terms. Use at your own risk.

Provider	Source(s)	Licence	Offline Caching	Link
Google	Hybrid, Satellite, Roadmap, Terrain	Maps Platform ToS	Prohibited without enterprise licence	ToS
Bing / Microsoft	Hybrid, Maps, Satellite	Bing Maps ToS	Prohibited without enterprise licence	Product
ESRI / ArcGIS	World Imagery, Clarity, Street, Topo, Nat Geo	Esri MLA	Restricted — ArcGIS subscription required	Terms
Michelin	OSM Michelin	Proprietary	Contact Michelin	ViaMichelin

Weather Overlays¶

Provider	Source(s)	Licence	Link
RainViewer	Rain/Precipitation, Clouds	API Terms — free non-commercial	RainViewer
BOM / RainViewer	BOM Radar (Australia)	BOM Copyright	BOM

Licence Compliance Summary¶

Safe for Offline / Defence Use (Free + Open)¶

OpenStreetMap, OpenTopoMap, OpenSeaMap, CycleOSM, CartoDB, MTBMap.cz, WaymarkedTrails
Copernicus Sentinel-2 (requires free ESA registration)
Geoscience Australia — National Base Map, Topographic, Satellite (CC-BY 4.0)
All US Government sources (USGS, NAIP, FEMA, USDA) — Public Domain
Canada (NRCan), Finland (NLS), Poland (GUGiK) — open government licences

Requires Paid Licence for Offline Caching¶

Google Maps — enterprise licence required
Bing Maps — enterprise licence required
ESRI / ArcGIS — ArcGIS subscription required

Attribution Requirements¶

Most free sources require attribution. Include appropriate text in your application:

© OpenStreetMap contributors (ODbL)
© ESA/Copernicus, Copernicus Data Space Ecosystem
© Commonwealth of Australia (Geoscience Australia) CC-BY 4.0
© CARTO (CC-BY 3.0)
Map data: OpenTopoMap (CC-BY-SA 3.0)