# Arcgis Chestercounty [Health: Active]

**Category:** 🗺️ Location Services  
**Repository:** https://github.com/pipeworx-io/mcp-arcgis-chestercounty  
**GitHub Stars:** 0  
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**Directory Page:** https://allmcps.com/mcp/arcgis-chestercounty

## Description
Chester County GIS — Chester County, Pennsylvania open geospatial data (ArcGIS).

## Tools
Capabilities this server exposes over MCP:

- **search_datasets** — Search Chester County GIS open geospatial datasets (parcels, addresses, zoning & public works) 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.

## Claude Desktop Quick Installation
Install path detected from listing signals. Uses `npx` (confidence: high):

```json
"mcpServers": {
  "arcgis-chestercounty": {
    "command": "npx",
    "args": ["-y","@pipeworx/mcp-arcgis-chestercounty"]
  }
}
```

## Documentation

## What Arcgis Chestercounty does

Arcgis Chestercounty exposes Chester County, Pennsylvania open geospatial data through three MCP tools. Dataset discovery covers categories such as parcels, addresses, zoning, and public works. Search results identify matching datasets and include each dataset’s name, summary, record count, owning organization, and Feature Service URL.

The returned service URL is the handoff point for the other tools. An agent can inspect a layer before querying it, then retrieve attribute records and geometry from the relevant ArcGIS Feature Service or Map Service layer.

## How it works

The normal workflow is to search for a dataset by keyword, select a service URL from the results, and pass that URL to `layer_info` or `query_layer`. `layer_info` reveals the layer’s fields and data types, geometry type, total record count, and supported capabilities. This helps an agent construct a query against the layer’s actual schema.

`query_layer` accepts an SQL-like `where` expression, a comma-separated list of output fields, an ordering expression, and limit and offset values. It returns attribute rows along with geometry. A broad sample can be requested with `where` set to `1=1` and `out_fields` set to `*`, while narrower filters and field selections are suitable for targeted retrieval.

The hosted MCP endpoint is available at `https://gateway.pipeworx.io/arcgis-chestercounty/mcp`. The same gateway also exposes shared Pipeworx tools, including routing and discovery tools, in addition to this pack’s three direct tools. A full gateway connection is available at `https://gateway.pipeworx.io/mcp`; either gateway URL can route requests through `ask_pipeworx`.

## Setup and configuration

For a hosted connection, add the following MCP server entry to a compatible client:

```json
{
  "mcpServers": {
    "arcgis-chestercounty": {
      "url": "https://gateway.pipeworx.io/arcgis-chestercounty/mcp"
    }
  }
}
```

The package also runs locally over stdio with no Pipeworx account:

```json
{
  "mcpServers": {
    "arcgis-chestercounty": {
      "command": "npx",
      "args": ["-y", "@pipeworx/mcp-arcgis-chestercounty"]
    }
  }
}
```

Running `npx -y @pipeworx/mcp-arcgis-chestercounty` starts the standalone process. In local mode, initialization, tool listing, and tool calls cover only the Arcgis Chestercounty tools; the shared gateway meta-tools are not included.

The hosted tools can also be called over HTTP. For example, dataset search uses a POST request to `https://gateway.pipeworx.io/v1/tools/arcgis_chestercounty_search_datasets` with a JSON body containing a `query` value.

## Tools and capabilities

- `search_datasets`: Find Chester County GIS datasets by keyword and return metadata plus service URLs.
- `query_layer`: Retrieve filtered ArcGIS layer records with selected fields, ordering, pagination, and geometry.
- `layer_info`: Inspect a layer’s schema, geometry type, record count, and capabilities.
- `ask_pipeworx`: On hosted gateway connections, submit a plain-language question that can be routed to the appropriate catalog tool.

## Limitations and notes

This is an independent, unofficial integration and is not affiliated with, endorsed by, or published by Chester County’s upstream GIS provider. Hosted pack connections include shared Pipeworx meta-tools alongside the three direct tools, so their tool list is larger than the pack’s standalone list. The local stdio package avoids those shared tools and provides only this pack’s tool set.

_Full upstream README: https://allmcps.com/mcp/arcgis-chestercounty/readme_