Arcgis Fairfax

Fairfax County GIS — Fairfax County, Virginia open geospatial data (ArcGIS).

Part of Pipeworx — an MCP gateway connecting AI agents to 1000+ live data sources.

Tools

Tool	Description
search_datasets	Search Fairfax County GIS open geospatial datasets (parcels, zoning, public safety & planning) by keyword. Returns each dataset's name, summary, record_count, owner/org, and its Feature Service url — pass that url to query_layer / layer_info.
query_layer	Query an ArcGIS Feature Service / Map Service layer by its url (from search_datasets). SQL-like where, comma-separated out_fields, order_by, limit, offset. Returns attribute rows (and geometry). Use where="1=1" + out_fields="*" to sample.
layer_info	Get an ArcGIS Feature/Map Service layer's schema by url: fields (name + type), geometry type, total record count, and capabilities.

Quick Start

Add to your MCP client (Claude Desktop, Cursor, Windsurf, etc.):

{
  "mcpServers": {
    "arcgis-fairfax": {
      "url": "https://gateway.pipeworx.io/arcgis-fairfax/mcp"
    }
  }
}

Or connect to the full Pipeworx gateway for access to all 1000+ data sources:

{
  "mcpServers": {
    "pipeworx": {
      "url": "https://gateway.pipeworx.io/mcp"
    }
  }
}

Using with ask_pipeworx

Instead of calling tools directly, you can ask questions in plain English:

ask_pipeworx({ question: "your question about Arcgis Fairfax data" })

The gateway picks the right tool and fills the arguments automatically.

More

• All tools and guides
• pipeworx.io

License

MIT