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loc8n Geographic Data

@gener8v-thomasMCP server · External

U.S. demographics, housing, mortgage, migration, and employment data via loc8n API

Freeno charge per call

One address for any MCP client. Your key stays in your Odel vault.

What it does

  1. Reads
  2. Writes
  3. High impact

At most: only reads or looks up information.

What it costs

Free

Odel charges nothing per call. The publisher may charge for its own service.

Tools

None listed · checked 26 Sep 2026

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README3 min read

@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

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

Set your API key:

bash
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:

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

Claude Code

Add to your project's .mcp.json:

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:

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

Windsurf

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

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:

bash
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

ToolDescription
lookup_zip_codeGet details for a ZIP code (city, county, state, coordinates)
search_zip_codes_by_cityFind ZIP codes for a city/state
find_zip_codes_in_radiusFind ZIP codes within a radius of a point
calculate_zip_code_distanceCalculate distance between two ZIP codes
search_areasSearch counties, states, or metro areas by name

Demographics

ToolDescription
get_demographicsFull demographic profile (population, income, education, etc.)
get_demographics_categorySingle demographic category in detail
get_demographics_trendYear-over-year demographic trends
compare_demographicsSide-by-side comparison of two areas

Housing & Market Data

ToolDescription
get_fair_market_rentHUD Fair Market Rent by bedroom count
get_fmr_trendFair Market Rent trends over time

Mortgage & Lending

ToolDescription
get_mortgage_summaryHMDA mortgage origination summary
get_mortgage_trendsMortgage lending trends over time
compare_mortgageSide-by-side mortgage comparison of two areas

Migration

ToolDescription
get_migration_summaryIRS SOI migration inflows/outflows
get_migration_flowsTop origin/destination flows for an area
get_migration_trendsMigration trends across year pairs

Employment

ToolDescription
get_employmentLODES employment profile (jobs, sectors, wages)
get_employment_trendEmployment trends over time
compare_employmentSide-by-side employment comparison
get_commute_flowsTop commute origins/destinations

Geocoding

ToolDescription
geocode_addressConvert address to coordinates and FIPS codes
reverse_geocodeConvert coordinates to address and area identifiers

Resources (7)

URIDescription
data://demographics/available-yearsAvailable years for ACS demographics data
data://fmr/available-yearsAvailable years for HUD Fair Market Rent data
data://mortgage/available-yearsAvailable years for HMDA mortgage data
data://migration/available-yearsAvailable year pairs for IRS migration data
data://employment/available-yearsAvailable years for LODES employment data
data://tiersSubscription tier definitions and permissions
data://auth/contextCurrent API key tier, permissions, and rate limits

Environment Variables

VariableRequiredDefaultDescription
LOC8N_API_KEYYes—API key for the loc8n Geographic Data API
LOC8N_API_BASE_URLNohttps://api.loc8n.comAPI 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

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