Web maps
The World basemaps for developers group in ArcGIS.com contains the web maps for each basemap style. Go to each web map to learn more about the style description, attribution, data sources, and data providers.
Tile services
The underlying data sources for the basemap styles service are vector and map tile services. To find all of the web maps and/or layers hosted in ArcGIS that provide data for this service, go to World basemaps for developers.
Vector tile services
https://basemaps-api.arcgis.com/arcgis/rest/services/World_Basemap_v2/VectorTileServer?token=<ACCESS_TOKEN>https://basemaps-api.arcgis.com/arcgis/rest/services/OpenStreetMap_v2/VectorTileServer?token=<ACCESS_TOKEN>https://basemaps.arcgis.com/arcgis/rest/services/World_Contours_v2/VectorTileServer?token=<ACCESS_TOKEN>https://basemaps.arcgis.com/arcgis/rest/services/World_Hillshade_v2/VectorTileServer?token=<ACCESS_TOKEN>Map tile services
https://ibasemaps-api.arcgis.com/arcgis/rest/services/Ocean/World_Ocean_Base/MapServer/tile/{z}/{y}/{x}?token=<ACCESS_TOKEN>https://ibasemaps-api.arcgis.com/arcgis/rest/services/Elevation/World_Hillshade/MapServer/tile/{z}/{y}/{x}?token=<ACCESS_TOKEN>https://ibasemaps-api.arcgis.com/arcgis/rest/services/Elevation/World_Hillshade_Dark/MapServer/tile/{z}/{y}/{x}?token=<ACCESS_TOKEN>https://ibasemaps-api.arcgis.com/arcgis/rest/services/World_Imagery/MapServer/tile/{z}/{y}/{x}?token=<ACCESS_TOKEN>Data providers
The data sources contributing to a basemap service layer depend on the layer. To view a list of providers, go to each item in the World basemaps for developers group.
Detail and accuracy
The detail and accuracy of the data varies across the globe.
Projections
Basemaps service layers are published in the Web Mercator (Auxiliary Sphere) projection.