# ARC Geospatial API

**Canonical:** https://apis.io/apis/appalachian-regional-commission/arc-geospatial-api/  
**Provider:** Appalachian Regional Commission — https://apis.io/providers/appalachian-regional-commission/  
**Base URL:** https://services.arcgis.com/nkunl3y8FDxPkXDl/arcgis/rest  
**Documentation:** https://arcgov.maps.arcgis.com/

ARC Geospatial API is one of 7 APIs that [Appalachian Regional Commission](https://apis.io/providers/appalachian-regional-commission/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Geospatial, GIS, Boundaries, Economic Data, and Open Data. The published artifact set on APIs.io includes an OpenAPI specification and an API reference.

Anonymous query access to the 108 public hosted feature services in the Appalachian Regional Commission's own ArcGIS Online organization (org id nkunl3y8FDxPkXDl, portal arcgov.maps.arcgis.com). This is where ARC's numbers live in machine-readable form: the ARC region boundary, the 423 Appalachian counties keyed on FIPS, the 74 Local Development Districts, congressional districts, rural-urban county types, and the annual county economic-status designations from FY2014 through FY2027 alongside ACS poverty, median household income, SNAP, broadband, education-attainment and population-change series. Returns Esri feature JSON, RFC 7946 GeoJSON or PBF.

## Operations (4)

| Method | Path | Summary |
|---|---|---|
| GET | `/services` | GET /services |
| GET | `/services/{serviceName}/FeatureServer` | GET /services/{serviceName}/FeatureServer |
| GET | `/services/{serviceName}/FeatureServer/{layerId}` | GET /services/{serviceName}/FeatureServer/{layerId} |
| GET | `/services/{serviceName}/FeatureServer/{layerId}/query` | GET /services/{serviceName}/FeatureServer/{layerId}/query |

## Machine-readable artifacts (7)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/appalachian-regional-commission/refs/heads/main/openapi/appalachian-regional-commission-geospatial-api-openapi.yml
- **Overlay** — https://raw.githubusercontent.com/api-evangelist/appalachian-regional-commission/refs/heads/main/overlays/appalachian-regional-commission-geospatial-overlay.yaml
- **APIReference** — https://services.arcgis.com/nkunl3y8FDxPkXDl/arcgis/rest/services?f=json
- **Portal** — https://arcgov.maps.arcgis.com/
- **DataModel** — https://raw.githubusercontent.com/api-evangelist/appalachian-regional-commission/refs/heads/main/data-model/appalachian-regional-commission-data-model.yml
- **ErrorCatalog** — https://raw.githubusercontent.com/api-evangelist/appalachian-regional-commission/refs/heads/main/errors/appalachian-regional-commission-problem-types.yml
- **Examples** — https://raw.githubusercontent.com/api-evangelist/appalachian-regional-commission/refs/heads/main/examples/appalachian-regional-commission-examples.yml

## Other Appalachian Regional Commission APIs (6)

- [ARC Research and Data API](https://apis.io/apis/appalachian-regional-commission/arc-research-data-api/)
- [ARC Programs API](https://apis.io/apis/appalachian-regional-commission/arc-programs-api/)
- [ARC Content API](https://apis.io/apis/appalachian-regional-commission/arc-content-api/)
- [ARC Taxonomy API](https://apis.io/apis/appalachian-regional-commission/arc-taxonomy-api/)
- [ARC API Discovery](https://apis.io/apis/appalachian-regional-commission/arc-api-discovery/)
- [ARC Data Report Tool](https://apis.io/apis/appalachian-regional-commission/arc-data-reports/)

## Tags

Geospatial, GIS, Boundaries, Economic Data, Open Data

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/appalachian-regional-commission/arc-geospatial-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/appalachian-regional-commission/.