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MCP server · Maps

loc8n Geographic Data

U.S. demographics, housing, mortgage, migration, and employment data from the Census Bureau, HUD, HMDA, and LEHD. 23 tools across 7 categories — query geographic data from any MCP client.

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About loc8n Geographic Data

loc8n Geographic Data is an MCP server in the Maps category: u.S. demographics, housing, mortgage, migration, and employment data from the Census Bureau, HUD, HMDA, and LEHD. 23 tools across 7 categories — query geographic data from any MCP client.

Install

Claude Code
claude mcp add loc8n-geographic-data -- npx -y @gener8v/mcp-geographic-data
npx
npx -y @gener8v/mcp-geographic-data

This server has no ConduID identity, so agent calls to it are not receipted. Pin the version you install and review the source before granting it credentials.

Tools (5)

calculate_zip_code_distanceCalculate distance between two ZIP codes

Parameters not published.

find_zip_codes_in_radiusFind ZIP codes within a radius of a point

Parameters not published.

lookup_zip_codeGet details for a ZIP code (city, county, state, coordinates)

Parameters not published.

search_areasSearch counties, states, or metro areas by name

Parameters not published.

search_zip_codes_by_cityFind ZIP codes for a city/state

Parameters not published.

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README

@gener8v/mcp-geographic-data

MCP server for the loc8n Geographic Data API. Exposes U.S. demographics, housing, mortgage, migration, employment, and geographic data as tools for any MCP-compatible client (Claude Desktop, Claude Code, Cursor, etc.).

Quick Start

npm install -g @gener8v/mcp-geographic-data

Set your API key:

export LOC8N_API_KEY="your-api-key"

Get a key at loc8n.com.

Usage

Claude Desktop

Add to ~/Library/Application Support/Claude/claude_desktop_config.json:

{
  "mcpServers": {
    "geographic-data": {
      "command": "mcp-geographic-data",
      "env": {
        "LOC8N_API_KEY": "your-api-key"
      }
    }
  }
}

Claude Code

Add to your project's .mcp.json:

{
  "mcpServers": {
    "geographic-data": {
      "command": "mcp-geographic-data",
      "env": {
        "LOC8N_API_KEY": "your-api-key"
      }
    }
  }
}

Hosted SSE (no install required)

Connect any MCP-compatible client directly to the hosted server at mcp.loc8n.com. Pass your API key as a query parameter or Authorization header:

SSE endpoint: https://mcp.loc8n.com/sse?apiKey=YOUR_API_KEY

Or with a Bearer token:

GET https://mcp.loc8n.com/sse
Authorization: Bearer YOUR_API_KEY

Each connection gets an isolated session — your API key is used for all requests and usage is tracked against your account.

Cursor

Add to your Cursor MCP settings:

{
  "mcpServers": {
    "geographic-data": {
      "url": "https://mcp.loc8n.com/sse?apiKey=YOUR_API_KEY"
    }
  }
}

Windsurf

Add to ~/.codeium/windsurf/mcp_config.json:

{
  "mcpServers": {
    "geographic-data": {
      "serverUrl": "https://mcp.loc8n.com/sse?apiKey=YOUR_API_KEY"
    }
  }
}

Self-Hosted SSE

Run the server locally for development or custom deployments:

mcp-geographic-data --transport sse --port 3100

Endpoints:

  • SSE: http://localhost:3100/sse
  • Messages: http://localhost:3100/messages
  • Health: http://localhost:3100/health

Tools (23)

Geographic Lookup

Tool Description
lookup_zip_code Get details for a ZIP code (city, county, state, coordinates)
search_zip_codes_by_city Find ZIP codes for a city/state
find_zip_codes_in_radius Find ZIP codes within a radius of a point
calculate_zip_code_distance Calculate distance between two ZIP codes
search_areas Search counties, states, or metro areas by name

Demographics

Tool Description
get_demographics Full demographic profile (population, income, education, etc.)
get_demographics_category Single demographic category in detail
get_demographics_trend Year-over-year demographic trends
compare_demographics Side-by-side comparison of two areas

Housing & Market Data

Tool Description
get_fair_market_rent HUD Fair Market Rent by bedroom count
get_fmr_trend Fair Market Rent trends over time

Mortgage & Lending

Tool Description
get_mortgage_summary HMDA mortgage origination summary
get_mortgage_trends Mortgage lending trends over time
compare_mortgage Side-by-side mortgage comparison of two areas

Migration

Tool Description
get_migration_summary IRS SOI migration inflows/outflows
get_migration_flows Top origin/destination flows for an area
get_migration_trends Migration trends across year pairs

Employment

Tool Description
get_employment LODES employment profile (jobs, sectors, wages)
get_employment_trend Employment trends over time
compare_employment Side-by-side employment comparison
get_commute_flows Top commute origins/destinations

Geocoding

Tool Description
geocode_address Convert address to coordinates and FIPS codes
reverse_geocode Convert coordinates to address and area identifiers

Resources (7)

URI Description
data://demographics/available-years Available years for ACS demographics data
data://fmr/available-years Available years for HUD Fair Market Rent data
data://mortgage/available-years Available years for HMDA mortgage data
data://migration/available-years Available year pairs for IRS migration data
data://employment/available-years Available years for LODES employment data
data://tiers Subscription tier definitions and permissions
data://auth/context Current API key tier, permissions, and rate limits

Environment Variables

Variable Required Default Description
LOC8N_API_KEY Yes — API key for the loc8n Geographic Data API
LOC8N_API_BASE_URL No https://api.loc8n.com API base URL

CLI Options

mcp-geographic-data [options]

  --transport <stdio|sse>  Transport protocol (default: stdio)
  --port <number>          Port for SSE transport (default: 3100)
  --help, -h               Show help

License

MIT

README copy captured when this server was indexed; it may lag the repository. The original is authoritative.

Questions

About loc8n Geographic Data

How do I install loc8n Geographic Data?

Run claude mcp add loc8n-geographic-data -- npx -y @gener8v/mcp-geographic-data, then add the server to your MCP client's configuration.

Is loc8n Geographic Data safe to use with an AI agent?

Its trust score is 37 out of 100 (low). It passes 1 of the 1 static security checks run so far. It has no ConduID identity yet, so agent calls to it are not receipted.

Is loc8n Geographic Data still maintained?

Conduid hasn't recorded a commit date for this repository yet. Check the repository directly for recent activity.