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Federal
AirNow Real Time Air Quality REST API
U.S. Environmental Protection Agency —
A REST web service API allowing the retrieval of real time air quality index data from AirNow. -
Federal
USGS Elevation Contours Overlay Map Service from The National Map NGDA 19 recent views
U.S. Geological Survey, Department of the Interior —
The USGS Elevation Contours service from The National Map (TNM) consists of contours generated for the conterminous United States from 1- and 1/3 arc-second elevation... -
Federal
USGS NAIP Imagery Overlay Map Service from The National Map 14 recent views
U.S. Geological Survey, Department of the Interior —
The USGS NAIP Imagery service from The National Map (TNM) consists of high resolution images that combine the visual attributes of an aerial photograph with the... -
Federal
USGS Governmental Unit Boundaries Overlay Map Service from The National Map 12 recent views
U.S. Geological Survey, Department of the Interior —
The USGS Governmental Unit Boundaries service from The National Map (TNM) represents major civil areas for the Nation, including States or Territories, counties (or... -
Federal
USGS Hydrography (NHD) Overlay Map Service from The National Map - National Geospatial Data Asset (NGDA) National Hydrography Dataset (NHD) NGDA
U.S. Geological Survey, Department of the Interior —
The USGS National Hydrography Dataset (NHD) service from The National Map (TNM) is a comprehensive set of digital spatial data that encodes information about... -
Federal
USGS Map Indices Overlay Map Service from The National Map
U.S. Geological Survey, Department of the Interior —
The USGS Map Indices service from The National Map (TNM) consists of 1x1 Degree, 30x60 Minute (100K), 15 Minute (63K), 7.5 Minute (24K), and 3.75 Minute grid polygons... -
Federal
USGS 3DEP Elevation Service from The National Map - National Geospatial Data Asset (NGDA) NGDA
U.S. Geological Survey, Department of the Interior —
The USGS 3D Elevation Program (3DEP) Bare Earth DEM Dynamic service is based on multi-resolution USGS DEM sources and provides dynamic functions for visualization.... -
Federal
USGS 3DEP Elevation Availability Index (NED) Overlay Map Service from The National Map - National Geospatial Data Asset (NGDA) National Elevation Data Set (NED) NGDA
U.S. Geological Survey, Department of the Interior —
The USGS 3D Elevation Program (3DEP) Index service from The National Map shows two general categories of downloadable elevation data: (1) digital elevation model... -
Federal
USGS 250K Special Edition Maps Overlay Map Service from The National Map
U.S. Geological Survey, Department of the Interior —
This map service provides download links to USGS National Map Special Edition 250K Geospatial PDF maps over the areas impacted by hurricanes or other disasters. The... -
Federal
USGS Transportation Overlay Map Service from The National Map
U.S. Geological Survey, Department of the Interior —
The USGS Transportation service from The National Map (TNM) is based on TIGER/Line data provided through U.S. Census Bureau and road data from U.S. Forest Service.... -
Federal
ERS Data APIs
Department of Agriculture —
The ERS content and data APIs (including our pre-made widgets for embedding charts) are currently out of service while we redesign our site. Check back here for... -
Federal
FISMA System to CAL Alignment REST API
Department of Homeland Security —
FISMA System to Capability and Activity List Alignment -
Federal
USDA ERS GIS Map Services and API User Guide
Department of Agriculture —
All of the ERS mapping applications, such as the Food Environment Atlas and the Food Access Research Atlas, use map services developed and hosted by ERS as the source... -
Federal
USGS NAIPPlus Overlay Map Service from The National Map
U.S. Geological Survey, Department of the Interior —
The USGS NAIP Plus service from The National Map consists of National Agriculture Imagery Program (NAIP) and high resolution orthoimagery (HRO) that combine the... -
Federal
USGS Structures Overlay Map Service from The National Map - National Geospatial Data Asset (NGDA) USGS National Structures Dataset NGDA
U.S. Geological Survey, Department of the Interior —
USGS Structures from The National Map (TNM) consists of data to include the name, function, location, and other core information and characteristics of selected... -
Federal
FEMA FISMA System Inventory REST API
Department of Homeland Security —
A system is identified by constructing logical boundaries around a set of processes, communications, storage, and related resources. The elements within these... -
Federal
Programs and Mission Activities for Current Congressional Phase REST API
Department of Homeland Security —
Data regarding the Programs, Sub-Programs, and Mission Activities for the Most Recent Congressional Phase. -
Federal
Coordinated Data Analysis System (CDAWeb CDAS) RESTful Web services API at the Space Physics Data Facility (SPDF)
National Aeronautics and Space Administration —
A RESTful web service for querying data and metadata components from data sets, including instruments, observatories, and inventory. This interface calls the services... -
Federal
USGS Geographic Names (GNIS) Overlay Map Service from The National Map - National Geospatial Data Asset (NGDA) Geographic Names Information System (GNIS) NGDA
U.S. Geological Survey, Department of the Interior —
USGS developed The National Map (TNM) Gazetteer as the Federal and national standard (ANSI INCITS 446-2008) for geographic nomenclature based on the Geographic Names... -
Federal
Capabilities and Activities List REST API
Department of Homeland Security —
The DHS Functional Capabilities and Activities List (CAL) presents an integrated list of enterprise level functional capabilities and activities aligned to the...