Property data source APIs: coverage, freshness, and limits

Know your data sources.

Each source has a page with its publisher, update schedule, coverage, known limits, and request fields. Coverage tells you where a source is available, not which fields a property will return. You can get the same details as JSON at /api/knowledge/data-sources.

Last verified September 9, 2026. That is when this list was last rebuilt from the ParcelOps source registry, not when each publisher last refreshed its own data.

tag: renewable-energy

EPA Land Reuse & Brownfields No auth
Brownfields, landfills, mines, contaminated land, and infrastructure-aware redevelopment leads.
epa brownfields land-reuse contaminated-land landfills
3 methodsScheduled
PVGIS Solar Resource & PV Yield No auth
How much sun a point on earth gets, and what a solar array there would produce.
solar solar-farm photovoltaic irradiation renewable-energy
4 methodsStatic
US Wind & Solar Farms No auth
Where US solar farms and wind turbines are already built, from two USGS national databases.
usgs solar solar-farm wind wind-farm
3 methodsScheduled