fastCRW Pergamon
Government · US
opendata.dc.gov
opendata.dc.gov
ArcGIS Hub open data portal at opendata.dc.gov (1917 items in its DCAT catalogue); searchable layers, feature services and maps published by the operating organisation.
Showing the catalogue
GET /v1/data/opendata-dc-gov/dcat-catalog1Request
1 credit⌘ ↵
Code follows the fields above
curl "https://api.fastcrw.com/v1/data/opendata-dc-gov/dcat-catalog" \ -H "Authorization: Bearer $FASTCRW_API_KEY"
2Response example
A sample shape. Press Run to see live data from opendata.dc.gov.
JSON
{
"@context": "https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld",
"@type": "dcat:Catalog",
"conformsTo": "https://project-open-data.cio.gov/v1.1/schema",
"describedBy": "https://project-open-data.cio.gov/v1.1/schema/catalog.json",
"dataset": [
{
"@type": "dcat:Dataset",
"identifier": "https://www.arcgis.com/home/item.html?id=dfb1fd43b18340939950652f89e6af95",
"landingPage": "https://opendata.dc.gov/apps/DCGIS::2020-census-data-by-2022-wards",
"title": "2020 Census Data by 2022 Wards",
"description": "{{description}}",
"keyword": [],
"issued": "2025-03-03T21:15:25.000Z",
"modified": "2025-03-04T21:24:28.000Z",
"publisher": {
"name": "City of Washington, DC"
},
"contactPoint": {
"@type": "vcard:Contact",
"fn": "travis.pate@dc.gov_DCGIS",
"hasEmail": "mailto:gisgroup@dc.gov"
},
"accessLevel": "public",
"spatial": "",
"license": "",
"distribution": [
{
"@type": "dcat:Distribution",
"title": "ArcGIS Hub Dataset",
"format": "Web Page",
"mediaType": "text/html",
"accessURL": "https://opendata.dc.gov/apps/DCGIS::2020-census-data-by-2022-wards"
},
{
"@type": "dcat:Distribution",
"title": "ArcGIS GeoService",
"format": "ArcGIS GeoServices REST API",
"mediaType": "application/json",
"accessURL": "https://experience.arcgis.com/experience/dfb1fd43b18340939950652f89e6af95"
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"theme": ""
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{
"@type": "dcat:Dataset",
"identifier": "https://www.arcgis.com/home/item.html?id=9c87e6d2794e42b7bc0fd7796d03cb1f",
"landingPage": "https://opendata.dc.gov/apps/DCGIS::2020-census-data-for-the-district-of-columbia",
"title": "2020 Census Data for the District of Columbia",
"description": "{{description}}",
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"issued": "2025-03-03T21:50:44.000Z",
"modified": "2025-03-04T20:37:09.000Z",
"publisher": {
"name": "City of Washington, DC"
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"contactPoint": {
"@type": "vcard:Contact",
"fn": "travis.pate@dc.gov_DCGIS",
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"license": "",
"distribution": [
{
"@type": "dcat:Distribution",
"title": "ArcGIS Hub Dataset",
"format": "Web Page",
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"accessURL": "https://opendata.dc.gov/apps/DCGIS::2020-census-data-for-the-district-of-columbia"
},
{
"@type": "dcat:Distribution",
"title": "ArcGIS GeoService",
"format": "ArcGIS GeoServices REST API",
"mediaType": "application/json",
"accessURL": "https://experience.arcgis.com/experience/9c87e6d2794e42b7bc0fd7796d03cb1f"
}
],
"theme": ""
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{
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"identifier": "https://www.arcgis.com/home/item.html?id=87c5e68942304363a4578b30853f385d&sublayer=25",
"landingPage": "https://opendata.dc.gov/datasets/DCGIS::homeless-shelter-locations",
"title": "Homeless Shelter Locations",
"description": "<div style='text-align:Left;'><div><div><p><span>The dataset contains locations and attributes of Homeless Shelters, created as part of the DC Geographic Information System (DC GIS) for the D.C. Office of the Chief Technology Officer (OCTO) and participating D.C. government agencies. A database provided by the Department of Human Services identified Homeless Shelter locations.</span></p></div></div></div>",
"keyword": [
"dhs",
"DHShack",
"District of Columbia",
"health",
"homeless",
"homeless shelter",
"public service",
"shelter",
"Washington DC"
],
"issued": "2015-06-04T18:54:21.000Z",
"modified": "2025-02-28T00:00:00.000Z",
"publisher": {
"name": "D.C. Office of the Chief Technology Officer"
},
"contactPoint": {
"@type": "vcard:Contact",
"fn": "DCGISopendata",
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"spatial": "-77.0479,38.8436,-76.9740,38.9634",
"license": "https://creativecommons.org/licenses/by/4.0",
"distribution": [
{
"@type": "dcat:Distribution",
"title": "ArcGIS Hub Dataset",
"format": "Web Page",
"mediaType": "text/html",
"accessURL": "https://opendata.dc.gov/datasets/DCGIS::homeless-shelter-locations"
},
{
"@type": "dcat:Distribution",
"title": "ArcGIS GeoService",
"format": "ArcGIS GeoServices REST API",
"mediaType": "application/json",
"accessURL": "https://maps2.dcgis.dc.gov/dcgis/rest/services/DCGIS_DATA/Public_Service_WebMercator/MapServer/25"
},
{
"@type": "dcat:Distribution",
"title": "OGC WMS",
"format": "OGC WMS",
"mediaType": "application/vnd.ogc.wms_xml",
"accessURL": "https://maps2.dcgis.dc.gov/dcgis/services/DCGIS_DATA/Public_Service_WebMercator/MapServer/WMSServer?request=GetCapabilities&service=WMS"
},
{
"@type": "dcat:Distribution",
"title": "CSV",
"format": "CSV",
"mediaType": "text/csv",
"accessURL": "https://opendata.dc.gov/api/download/v1/items/87c5e68942304363a4578b30853f385d/csv?layers=25"
},
{
"@type": "dcat:Distribution",
"title": "Shapefile",
"format": "ZIP",
"mediaType": "application/zip",
"accessURL": "https://opendata.dc.gov/api/download/v1/items/87c5e68942304363a4578b30853f385d/shapefile?layers=25"
},
{
"@type": "dcat:Distribution",
"title": "GeoJSON",
"format": "GeoJSON",
"mediaType": "application/vnd.geo+json",
"accessURL": "https://opendata.dc.gov/api/download/v1/items/87c5e68942304363a4578b30853f385d/geojson?layers=25"
},
{
"@type": "dcat:Distribution",
"title": "KML",
"format": "KML",
"mediaType": "application/vnd.google-earth.kml+xml",
"accessURL": "https://opendata.dc.gov/api/download/v1/items/87c5e68942304363a4578b30853f385d/kml?layers=25"
}
],
"theme": [
"geospatial"
]
},
{
"@type": "dcat:Dataset",
"identifier": "https://www.arcgis.com/home/item.html?id=d45344b026204917a5374f2bf475dbb6",
"landingPage": "https://opendata.dc.gov/content/DCGIS::martin-luther-king-jr-ave-se-revitalization-phase-1",
"title": "Martin Luther King Jr. Ave SE Revitalization: Phase 1",
"description": "Create your own initiative by combining existing applications with a custom site. Use this initiative to form teams around a problem and invite your community to participate.",
"keyword": [
"Hub Site",
"ward8",
"ward8a"
],
"issued": "2020-09-17T21:55:12.000Z",
"modified": "2025-02-18T21:55:04.000Z",
"publisher": {
"name": "City of Washington, DC"
},
"contactPoint": {
"@type": "vcard:Contact",
"fn": "DDOThub",
"hasEmail": "mailto:gisgroup@dc.gov"
},
"accessLevel": "public",
"spatial": "-77.2258,38.7867,-76.8125,39.0009",
"license": "null",
"distribution": [
{
"@type": "dcat:Distribution",
"title": "ArcGIS Hub Dataset",
"format": "Web Page",
"mediaType": "text/html",
"accessURL": "https://opendata.dc.gov/content/DCGIS::martin-luther-king-jr-ave-se-revitalization-phase-1"
},
{
"@type": "dcat:Distribution",
"title": "ArcGIS GeoService",
"format": "ArcGIS GeoServices REST API",
"mediaType": "application/json",
"accessURL": "https://ddot-cp-mlk-jr-se-i-DCGIS.hub.arcgis.com"
}
],
"theme": [
"geospatial"
]
},
{
"@type": "dcat:Dataset",
"identifier": "https://www.arcgis.com/home/item.html?id=3b79d176f7b247a19cc4f554b7eaf74a",
"landingPage": "https://opendata.dc.gov/content/DCGIS::metropolitan-branch-trail-mccormack-drive-ne-to-1st-place-ne",
"title": "Metropolitan Branch Trail: McCormack Drive NE to 1st Place NE",
"description": "Create your own initiative by combining existing applications with a custom site. Use this initiative to form teams around a problem and invite your community to participate.",
"keyword": [
"Hub Site",
"ward5"
],
"issued": "2020-08-27T15:38:07.000Z",
"modified": "2025-02-18T21:51:42.000Z",
"publisher": {
"name": "City of Washington, DC"
},
"contactPoint": {
"@type": "vcard:Contact",
"fn": "DDOThub",
"hasEmail": "mailto:gisgroup@dc.gov"
},
"accessLevel": "public",
"spatial": "-77.2258,38.7867,-76.8125,39.0009",
"license": "null",
"distribution": [
{
"@type": "dcat:Distribution",
"title": "ArcGIS Hub Dataset",
"format": "Web Page",
"mediaType": "text/html",
"accessURL": "https://opendata.dc.gov/content/DCGIS::metropolitan-branch-trail-mccormack-drive-ne-to-1st-place-ne"
},
{
"@type": "dcat:Distribution",
"title": "ArcGIS GeoService",
"format": "ArcGIS GeoServices REST API",
"mediaType": "application/json",
"accessURL": "https://mbt-forttotten.ddot.dc.gov"
}
],
"theme": [
"geospatial"
]
},
{
"@type": "dcat:Dataset",
"identifier": "https://www.arcgis.com/home/item.html?id=57938c6e09e1483091f4cea7f6cdd093",
"landingPage": "https://opendata.dc.gov/content/DCGIS::broad-branch-road-nw-environmental-assessment",
"title": "Broad Branch Road NW Environmental Assessment",
"description": "Create your own initiative by combining existing applications with a custom site. Use this initiative to form teams around a problem and invite your community to participate.",
"keyword": [
"Hub Site",
"ward3"
],
"issued": "2021-10-06T13:53:59.000Z",
"modified": "2025-02-18T21:51:27.000Z",
"publisher": {
"name": "City of Washington, DC"
},
"contactPoint": {
"@type": "vcard:Contact",
"fn": "DDOThub",
"hasEmail": "mailto:gisgroup@dc.gov"
},
"accessLevel": "public",
"spatial": "",
"license": "null",
"distribution": [
{
"@type": "dcat:Distribution",
"title": "ArcGIS Hub Dataset",
"format": "Web Page",
"mediaType": "text/html",
"accessURL": "https://opendata.dc.gov/content/DCGIS::broad-branch-road-nw-environmental-assessment"
},
{
"@type": "dcat:Distribution",
"title": "ArcGIS GeoService",
"format": "ArcGIS GeoServices REST API",
"mediaType": "application/json",
"accessURL": "https://ddot-cp-broad-branch-ea-DCGIS.hub.arcgis.com"
}
],
"theme": ""
},
{
"@type": "dcat:Dataset",
"identifier": "https://www.arcgis.com/home/item.html?id=871fc724e5b5498890167da09d9471b8",
"landingPage": "https://opendata.dc.gov/content/DCGIS::anacostia-riverwalk-trail-2",
"title": "Anacostia Riverwalk Trail",
"description": "Create your own initiative by combining existing applications with a custom site. Use this initiative to form teams around a problem and invite your community to participate.",
"keyword": [
"Hub Site",
"ward2",
"ward5",
"ward7",
"ward8",
"awi",
"awi-trail",
"ward8a",
"ward6aa",
"ward6"
],
"issued": "2021-11-01T18:36:16.000Z",
"modified": "2025-02-18T18:56:27.000Z",
"publisher": {
"name": "City of Washington, DC"
},
"contactPoint": {
"@type": "vcard:Contact",
"fn": "DDOThub",
"hasEmail": "mailto:gisgroup@dc.gov"
},
"accessLevel": "public",
"spatial": "",
"license": "null",
"distribution": [
{
"@type": "dcat:Distribution",
"title": "ArcGIS Hub Dataset",
"format": "Web Page",
"mediaType": "text/html",
"accessURL": "https://opendata.dc.gov/content/DCGIS::anacostia-riverwalk-trail-2"
},
{
"@type": "dcat:Distribution",
"title": "ArcGIS GeoService",
"format": "ArcGIS GeoServices REST API",
"mediaType": "application/json",
"accessURL": "https://ddot-cp-anacostia-riverwalk-DCGIS.hub.arcgis.com"
}
],
"theme": ""
},
{
"@type": "dcat:Dataset",
"identifier": "https://www.arcgis.com/home/item.html?id=1ba39b821ed54a8ebe8e38ece8d2d9db&sublayer=13",
"landingPage": "https://opendata.dc.gov/datasets/DCGIS::street-tree-archive",
"title": "Street Tree Archive",
"description": "<div style='text-align:Left;'><div><div><p><span>DDOT's Urban Forestry Division (UFD) manages ~180,000 public trees and this data set shows annual changes in species composition and tree health from 2014 to present. Visit trees.dc.gov for more information.</span></p></div></div></div>",
"keyword": [
"washington dc",
"dc",
"washington",
"street",
"tree",
"ddot",
"ufd",
"urban",
"forestry",
"division"
],
"issued": "2025-02-12T17:27:04.000Z",
"modified": "2025-02-12T17:28:14.000Z",
"publisher": {
"name": "City of Washington, DC"
},
"contactPoint": {
"@type": "vcard:Contact",
"fn": "DCGISopendata",
"hasEmail": "mailto:gisgroup@dc.gov"
},
"accessLevel": "public",
"spatial": "-77.1196,38.7916,3.6538,1.2108",
"license": "https://creativecommons.org/licenses/by/4.0",
"distribution": [
{
"@type": "dcat:Distribution",
"title": "ArcGIS Hub Dataset",
"format": "Web Page",
"mediaType": "text/html",
"accessURL": "https://opendata.dc.gov/datasets/DCGIS::street-tree-archive"
},
{
"@type": "dcat:Distribution",
"title": "ArcGIS GeoService",
"format": "ArcGIS GeoServices REST API",
"mediaType": "application/json",
"accessURL": "https://maps2.dcgis.dc.gov/DCGIS/rest/services/DCGIS_DATA/Urban_Tree_Canopy/FeatureServer/13"
},
{
"@type": "dcat:Distribution",
"title": "CSV",
"format": "CSV",
"mediaType": "text/csv",
"accessURL": "https://opendata.dc.gov/api/download/v1/items/1ba39b821ed54a8ebe8e38ece8d2d9db/csv?layers=13"
},
{
"@type": "dcat:Distribution",
"title": "Shapefile",
"format": "ZIP",
"mediaType": "application/zip",
"accessURL": "https://opendata.dc.gov/api/download/v1/items/1ba39b821ed54a8ebe8e38ece8d2d9db/shapefile?layers=13"
},
{
"@type": "dcat:Distribution",
"title": "GeoJSON",
"format": "GeoJSON",
"mediaType": "application/vnd.geo+json",
"accessURL": "https://opendata.dc.gov/api/download/v1/items/1ba39b821ed54a8ebe8e38ece8d2d9db/geojson?layers=13"
},
{
"@type": "dcat:Distribution",
"title": "KML",
"format": "KML",
"mediaType": "application/vnd.google-earth.kml+xml",
"accessURL": "https://opendata.dc.gov/api/download/v1/items/1ba39b821ed54a8ebe8e38ece8d2d9db/kml?layers=13"
},
{
"@type": "dcat:Distribution",
"title": "File Geodatabase",
"format": "ZIP",
"mediaType": "application/zip",
"accessURL": "https://opendata.dc.gov/api/download/v1/items/1ba39b821ed54a8ebe8e38ece8d2d9db/filegdb?layers=13"
}
],
"theme": [
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},
{
"@type": "dcat:Dataset",
"identifier": "https://www.arcgis.com/home/item.html?id=14eb1c6b576940c7b876ebafb227febe&sublayer=10",
"landingPage": "https://opendata.dc.gov/datasets/DCGIS::national-parks",
"title": "National Parks",
"description": "<div style='text-align:Left;'><div><div><p><span>Digital version of the National Park Service Map A, indicating Park Service properties and other government-owned land. </span></p></div></div></div>",
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"Open Data",
"Washington DC",
"DC GIS",
"District of Columbia",
"Recreation",
"DCGIS",
"society",
"National Park Service",
"Park",
"DC",
"… 3 more items"
],
"issued": "2015-02-27T21:13:55.000Z",
"modified": "2025-02-07T00:00:00.000Z",
"publisher": {
"name": "National Park Service"
},
"contactPoint": {
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"fn": "DCGISopendata",
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"accessLevel": "public",
"spatial": "-77.1194,38.8031,-76.9224,38.9955",
"license": "https://creativecommons.org/licenses/by/4.0",
"distribution": [
{
"@type": "dcat:Distribution",
"title": "ArcGIS Hub Dataset",
"format": "Web Page",
"mediaType": "text/html",
"accessURL": "https://opendata.dc.gov/datasets/DCGIS::national-parks"
},
{
"@type": "dcat:Distribution",
"title": "ArcGIS GeoService",
"format": "ArcGIS GeoServices REST API",
"mediaType": "application/json",
"accessURL": "https://maps2.dcgis.dc.gov/dcgis/rest/services/DCGIS_DATA/Recreation_WebMercator/MapServer/10"
},
{
"@type": "dcat:Distribution",
"title": "OGC WMS",
"format": "OGC WMS",
"mediaType": "application/vnd.ogc.wms_xml",
"accessURL": "https://maps2.dcgis.dc.gov/dcgis/services/DCGIS_DATA/Recreation_WebMercator/MapServer/WMSServer?request=GetCapabilities&service=WMS"
},
{
"@type": "dcat:Distribution",
"title": "CSV",
"format": "CSV",
"mediaType": "text/csv",
"accessURL": "https://opendata.dc.gov/api/download/v1/items/14eb1c6b576940c7b876ebafb227febe/csv?layers=10"
},
{
"@type": "dcat:Distribution",
"title": "Shapefile",
"format": "ZIP",
"mediaType": "application/zip",
"accessURL": "https://opendata.dc.gov/api/download/v1/items/14eb1c6b576940c7b876ebafb227febe/shapefile?layers=10"
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{
"@type": "dcat:Distribution",
"title": "GeoJSON",
"format": "GeoJSON",
"mediaType": "application/vnd.geo+json",
"accessURL": "https://opendata.dc.gov/api/download/v1/items/14eb1c6b576940c7b876ebafb227febe/geojson?layers=10"
},
{
"@type": "dcat:Distribution",
"title": "KML",
"format": "KML",
"mediaType": "application/vnd.google-earth.kml+xml",
"accessURL": "https://opendata.dc.gov/api/download/v1/items/14eb1c6b576940c7b876ebafb227febe/kml?layers=10"
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],
"theme": [
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{
"@type": "dcat:Dataset",
"identifier": "https://www.arcgis.com/home/item.html?id=b1db18de82434dcda9f96ea49d079e6a&sublayer=25",
"landingPage": "https://opendata.dc.gov/datasets/DCGIS::electric-substations",
"title": "Electric Substations",
"description": "Electric sub stations. Contract NCPC 93-02. This document describes the planimetric map production for the 350 tiles located in Washington DC and the surrounding states of MD and VA.",
"keyword": [
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"issued": "2015-02-27T21:17:19.000Z",
"modified": "2002-06-10T00:00:00.000Z",
"publisher": {
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"license": "https://creativecommons.org/licenses/by/4.0",
"distribution": [
{
"@type": "dcat:Distribution",
"title": "ArcGIS Hub Dataset",
"format": "Web Page",
"mediaType": "text/html",
"accessURL": "https://opendata.dc.gov/datasets/DCGIS::electric-substations"
},
{
"@type": "dcat:Distribution",
"title": "ArcGIS GeoService",
"format": "ArcGIS GeoServices REST API",
"mediaType": "application/json",
"accessURL": "https://maps2.dcgis.dc.gov/dcgis/rest/services/DCGIS_DATA/Planimetrics_1999/MapServer/25"
},
{
"@type": "dcat:Distribution",
"title": "OGC WMS",
"format": "OGC WMS",
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"accessURL": "https://maps2.dcgis.dc.gov/dcgis/services/DCGIS_DATA/Planimetrics_1999/MapServer/WMSServer?request=GetCapabilities&service=WMS"
},
{
"@type": "dcat:Distribution",
"title": "CSV",
"format": "CSV",
"mediaType": "text/csv",
"accessURL": "https://opendata.dc.gov/api/download/v1/items/b1db18de82434dcda9f96ea49d079e6a/csv?layers=25"
},
{
"@type": "dcat:Distribution",
"title": "Shapefile",
"format": "ZIP",
"mediaType": "application/zip",
"accessURL": "https://opendata.dc.gov/api/download/v1/items/b1db18de82434dcda9f96ea49d079e6a/shapefile?layers=25"
},
{
"@type": "dcat:Distribution",
"title": "GeoJSON",
"format": "GeoJSON",
"mediaType": "application/vnd.geo+json",
"accessURL": "https://opendata.dc.gov/api/download/v1/items/b1db18de82434dcda9f96ea49d079e6a/geojson?layers=25"
},
{
"@type": "dcat:Distribution",
"title": "KML",
"format": "KML",
"mediaType": "application/vnd.google-earth.kml+xml",
"accessURL": "https://opendata.dc.gov/api/download/v1/items/b1db18de82434dcda9f96ea49d079e6a/kml?layers=25"
},
{
"@type": "dcat:Distribution",
"title": null,
"format": null,
"accessURL": "http://dcatlas.dcgis.dc.gov/catalog/download.asp?downloadName=EsubStnPly&downloadTYPE=KMZ",
"description": null
},
{
"@type": "dcat:Distribution",
"title": null,
"format": null,
"accessURL": "http://dcatlas.dcgis.dc.gov/catalog/download.asp?downloadName=EsubStnPly&downloadTYPE=ESRI",
"description": null
}
],
"theme": [
"geospatial"
]
},
"… 1907 more items"
]
}Attribution: Source: opendata.dc.gov. Data published by the portal's contributing departments.
Licence: Unless otherwise noted, the data on the Sites is public domain and made available with a Creative Commons CC0 1.0 Universal dedication.
Ask with this source
A prompt for your agent that names this source and how to call it through the crw MCP.
DCAT-US catalogue
Use opendata.dc.gov (opendata-dc-gov) from fastCRW Pergamon, capability "DCAT-US catalogue" (dcat-catalog). You want a standards-shaped harvest of the entire portal rather than keyword search hits. Use the crw MCP tools: crw_find_data to confirm the source and its options, then crw_get_data with provider "opendata-dc-gov" and capability "dcat-catalog". Tell me the credits used and cite the licence from the response. If the crw MCP tools are missing, install them with: npx -y crw-mcp install --api-key <your fastCRW API key>
Item detail
Use opendata.dc.gov (opendata-dc-gov) from fastCRW Pergamon, capability "Item detail" (item). You have an ArcGIS item id from a search and need its metadata and service URL. Example options: id=a9ed237cef76463c8aae7f7f1db6a669. Use the crw MCP tools: crw_find_data to confirm the source and its options, then crw_get_data with provider "opendata-dc-gov" and capability "item". Tell me the credits used and cite the licence from the response. If the crw MCP tools are missing, install them with: npx -y crw-mcp install --api-key <your fastCRW API key>
Item search
Use opendata.dc.gov (opendata-dc-gov) from fastCRW Pergamon, capability "Item search" (items). You want to find data layers or maps on this ArcGIS portal by keyword or by map extent. Example options: q=crime, bbox=-77.1,38.8,-76.9,39.0, filter=type:("Feature Service"). Use the crw MCP tools: crw_find_data to confirm the source and its options, then crw_get_data with provider "opendata-dc-gov" and capability "items". Tell me the credits used and cite the licence from the response. If the crw MCP tools are missing, install them with: npx -y crw-mcp install --api-key <your fastCRW API key>