Credits & acknowledgements
UrbanLens is built from community-maintained maps, geospatial datasets, and free software. This page lists the projects and providers whose work makes the platform possible.
Base layers and overlays on the main map draw from the sources below. Attribution shown will vary by layer; the map footer shows credits for whichever layers are active.
Community-maintained data used for the default street map and the Water & Rail overlay, including active and lifecycle-tagged historic railways, rail trails, waterways, and canals. Viewport geometry is queried through Overpass; reverse geocoding and address lookup use Nominatim. © OpenStreetMap contributors, available under the Open Database License (ODbL).
Topographic hillshade and contour tiles built from SRTM elevation data and OpenStreetMap. Map style © OpenTopoMap (CC-BY-SA); elevation data © SRTM.
Satellite imagery and geopolitical boundary reference layers. Tiles © Esri - sources include Esri, i-cubed, USDA, USGS, AEX, GeoEye, Getmapping, Aerogrid, IGN, IGP, UPR-EGP, and the GIS User Community.
Dark Matter basemap tiles used when map dark mode is active on street and terrain views. © OpenStreetMap contributors © CARTO.
Precipitation and cloud overlay tiles on the optional weather layer. Map data © OpenWeatherMap, subject to their terms of use.
Open-source JavaScript library for mobile-friendly interactive maps (BSD-2-Clause).
Marker clustering plugin for grouping nearby pins at lower zoom levels (MIT).
Pin and location pages may fetch supplementary data from third-party services.
Places, geocoding, Street View imagery, and related location services.
Encyclopedia summaries and freely licensed media from Wikimedia Commons.
Historical photographs and collection records from Smithsonian open-access APIs.
Park information and points of interest from NPS public data APIs.
The openai Python client library powers our OpenAI-compatible API calls. We are not currently using OpenAI’s GPT models, though we may enable them in the future.
Optional AI-assisted features are routed through Cloudflare Workers AI.
The Mistral 7B Instruct model powers several AI-assisted features, hosted via Cloudflare Workers AI.
Claude models are also used for AI-assisted features.
Web search results for the pin detail pages.
UrbanLens is open source. These people have contributed code in the github.com/UrbanLens/UrbanLens repository. New contributors will be added to this list automatically.
If we have missed attribution or misstated a license, please open an issue on Github so we can fix it!
