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US Places, Then

io.github.ianderso/us-places-mcp · v0.2.0

US places then: county on a date, PLSS land, GNIS names, old topo maps, post offices.

Source code Set it up

Connect Runs on your machine

Terminal
claude mcp add us-places-mcp -e US_PLACES_OVERPASS_URL=<US_PLACES_OVERPASS_URL> -e US_PLACES_PLSS_URL=<US_PLACES_PLSS_URL> -e US_PLACES_GNIS_URL=<US_PLACES_GNIS_URL> -e US_PLACES_GNIS_ARCHIVE_URL=<US_PLACES_GNIS_ARCHIVE_URL> -e US_PLACES_TNM_URL=<US_PLACES_TNM_URL> -e US_PLACES_DATAVERSE_URL=<US_PLACES_DATAVERSE_URL> -e US_PLACES_CACHE_DIR=<US_PLACES_CACHE_DIR> -e US_PLACES_TIMEOUT=<US_PLACES_TIMEOUT> -e US_PLACES_CONTACT=<US_PLACES_CONTACT> -- uvx us-places-mcp==0.2.0
claude_desktop_config.json
{
  "mcpServers": {
    "us-places-mcp": {
      "command": "uvx",
      "args": [
        "us-places-mcp==0.2.0"
      ],
      "env": {
        "US_PLACES_OVERPASS_URL": "<US_PLACES_OVERPASS_URL>",
        "US_PLACES_PLSS_URL": "<US_PLACES_PLSS_URL>",
        "US_PLACES_GNIS_URL": "<US_PLACES_GNIS_URL>",
        "US_PLACES_GNIS_ARCHIVE_URL": "<US_PLACES_GNIS_ARCHIVE_URL>",
        "US_PLACES_TNM_URL": "<US_PLACES_TNM_URL>",
        "US_PLACES_DATAVERSE_URL": "<US_PLACES_DATAVERSE_URL>",
        "US_PLACES_CACHE_DIR": "<US_PLACES_CACHE_DIR>",
        "US_PLACES_TIMEOUT": "<US_PLACES_TIMEOUT>",
        "US_PLACES_CONTACT": "<US_PLACES_CONTACT>"
      }
    }
  }
}
~/.cursor/mcp.json
{
  "mcpServers": {
    "us-places-mcp": {
      "command": "uvx",
      "args": [
        "us-places-mcp==0.2.0"
      ],
      "env": {
        "US_PLACES_OVERPASS_URL": "<US_PLACES_OVERPASS_URL>",
        "US_PLACES_PLSS_URL": "<US_PLACES_PLSS_URL>",
        "US_PLACES_GNIS_URL": "<US_PLACES_GNIS_URL>",
        "US_PLACES_GNIS_ARCHIVE_URL": "<US_PLACES_GNIS_ARCHIVE_URL>",
        "US_PLACES_TNM_URL": "<US_PLACES_TNM_URL>",
        "US_PLACES_DATAVERSE_URL": "<US_PLACES_DATAVERSE_URL>",
        "US_PLACES_CACHE_DIR": "<US_PLACES_CACHE_DIR>",
        "US_PLACES_TIMEOUT": "<US_PLACES_TIMEOUT>",
        "US_PLACES_CONTACT": "<US_PLACES_CONTACT>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "us-places-mcp": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "us-places-mcp==0.2.0"
      ],
      "env": {
        "US_PLACES_OVERPASS_URL": "<US_PLACES_OVERPASS_URL>",
        "US_PLACES_PLSS_URL": "<US_PLACES_PLSS_URL>",
        "US_PLACES_GNIS_URL": "<US_PLACES_GNIS_URL>",
        "US_PLACES_GNIS_ARCHIVE_URL": "<US_PLACES_GNIS_ARCHIVE_URL>",
        "US_PLACES_TNM_URL": "<US_PLACES_TNM_URL>",
        "US_PLACES_DATAVERSE_URL": "<US_PLACES_DATAVERSE_URL>",
        "US_PLACES_CACHE_DIR": "<US_PLACES_CACHE_DIR>",
        "US_PLACES_TIMEOUT": "<US_PLACES_TIMEOUT>",
        "US_PLACES_CONTACT": "<US_PLACES_CONTACT>"
      }
    }
  }
}

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools

This server runs locally, so its tools are listed by your MCP client once it starts.

Environment variables

NameDescription
US_PLACES_OVERPASS_URL
Optional		OpenHistoricalMap's Overpass endpoint.
US_PLACES_PLSS_URL
Optional		BLM's national PLSS (CadNSDI) map service.
US_PLACES_GNIS_URL
Optional		USGS's GNIS map service (The National Map).
US_PLACES_GNIS_ARCHIVE_URL
Optional		Where USGS keeps the August 2021 GNIS state files.
US_PLACES_TNM_URL
Optional		The National Map's TNM Access products API.
US_PLACES_DATAVERSE_URL
Optional		Harvard Dataverse, which holds the US post offices dataset.
US_PLACES_CACHE_DIR
Optional		Directory for the on-disk response cache and the downloaded datasets.
US_PLACES_TIMEOUT
Optional		HTTP timeout in seconds.
US_PLACES_CONTACT
Optional		An email address or URL appended to the User-Agent, so the services can reach whoever runs the server.

Details

Package[email protected] (PYPI, stdio)
First published6 Oct 2026
Last updated6 Oct 2026
Registry nameio.github.ianderso/us-places-mcp

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