Location MCP Server

A Model Context Protocol (MCP) server that gives LLMs geolocation awareness: look up an IP, reverse geocode a coordinate pair, and detect the host's public IP. No API keys required out of the box.

Powered by ipapi.is, Nominatim (OpenStreetMap), and optionally ipinfo.io.

---

Tools

• geolocate_ip(ip?, format?) — Look up geolocation data for an IPv4/IPv6 address (country, city, region, latitude/longitude, timezone, ISP, currency, etc.). If ip is omitted, automatically detects the public IP of the host.
• reverse_geocode(latitude, longitude, format?) — Reverse geocode a coordinate pair into a human-readable address (city, region, country, postal code, country code, timezone).
• get_my_ip(format?) — Detect and return the public IP address of the host running this MCP server.

All tools accept an optional format parameter: "text" (default, human-readable summary) or "json" (raw structured data for further processing).

---

Examples

Look up an IP

"Where is IP 8.8.8.8 located?"

Returns:

IP address: 8.8.8.8
Location: Mountain View, California, United States
Postal code: 94043
Coordinates: 37.4056, -122.0775
Timezone: America/Los_Angeles
UTC offset: -07:00
ISP: Google LLC
Currency: USD
In EU: false
Continent: NA
Source: ipapi.is

Detect the host's public IP

"What's the public IP of the machine running this server?"

Returns:

The public IP of the host is 203.0.113.42.

Reverse geocode coordinates

"What's at 40.7128, -74.0060?"

Returns:

Address: New York City Hall, 260, Broadway, Tribeca, Lower Manhattan, Manhattan, New York County, New York, 10007, United States
Postal code: 10007
Coordinates: 40.7128, -74.006
Timezone: America/New_York
Source: nominatim.openstreetmap.org

Get raw JSON

Request format: "json" to receive the underlying structured data:

{
  "ip": "8.8.8.8",
  "latitude": 37.4056,
  "longitude": -122.0775,
  "city": "Mountain View",
  "region": "California",
  "country": "United States",
  "country_code": "US",
  "postal_code": "94043",
  "timezone": "America/Los_Angeles",
  "utc_offset": "-07:00",
  "is_dst": true,
  "isp": "Google LLC",
  "company_name": "Google LLC",
  "company_domain": "google.com",
  "asn": 15169,
  "currency_code": "USD",
  "calling_code": "1",
  "is_eu": false,
  "continent": "NA",
  "accuracy": "HIGH",
  "is_datacenter": true,
  "is_vpn": true,
  "is_proxy": false,
  "is_tor": false,
  "is_mobile": false,
  "source": "ipapi.is"
}

---

Installation

Option 1: Via Smithery (recommended)

npx -y @smithery/cli install @atorresg/location-mcp --client claude-desktop

Option 2: Via npm globally

npm install -g location-mcp

Option 3: Via npx (no install)

npx -y location-mcp

---

Configuration

Optional: Use ipinfo.io (better rate limits)

By default, this server uses ipapi.is (keyless) for IP lookups and Nominatim (OpenStreetMap, keyless) for reverse geocoding.

To upgrade to ipinfo.io for IP lookups (their own free tier or paid production token), set the LOCATION_MCP_API_KEY environment variable to your ipinfo.io token before starting the server:

export LOCATION_MCP_API_KEY=your_ipinfo_token_here
location-mcp

Reverse geocoding always uses Nominatim (no equivalent in the free ipinfo tier).

---

Client Configuration

Claude Desktop

Add to your claude_desktop_config.json:

{
  "mcpServers": {
    "location-mcp": {
      "command": "npx",
      "args": ["-y", "location-mcp"]
    }
  }
}

For an ipinfo.io upgrade:

{
  "mcpServers": {
    "location-mcp": {
      "command": "npx",
      "args": ["-y", "location-mcp"],
      "env": {
        "LOCATION_MCP_API_KEY": "your_ipinfo_token_here"
      }
    }
  }
}

Cursor

Add to your .cursor/mcp.json:

{
  "mcpServers": {
    "location-mcp": {
      "command": "npx",
      "args": ["-y", "location-mcp"]
    }
  }
}

Windsurf

Add to your model_config.json:

{
  "mcpServers": {
    "location-mcp": {
      "command": "npx",
      "args": ["-y", "location-mcp"]
    }
  }
}

Claude Code

claude mcp add location-mcp -- npx -y location-mcp

---

Privacy & Limitations

• VPN / Tor: The detected public IP is the exit node of any VPN, proxy, or Tor circuit in use by the host. The MCP cannot detect the user's real physical location in that case.
• Private / reserved IPs: IPs in private ranges (e.g., 192.168.x.x, 10.x.x.x, 127.0.0.1) and reserved ranges cannot be geolocated. The server returns a clear error.
• Rate limits: Keyless tier (ipapi.is) is suitable for light/personal use. For high-volume production use, configure an ipinfo.io API key.
• Caching: Results are cached in-memory for 24 hours (IP) and 7 days (reverse geocode). The cache is not persisted across server restarts. The cache is also process-local — no data is shared between MCP instances.
• No data persistence: The server does not log, store, or forward IP addresses beyond the in-memory cache.

---

Attribution

This MCP server wraps the following third-party services:

• ipapi.is — IP address geolocation (free tier, keyless, with VPN/Tor/Proxy detection and company data). Used by default for IP lookups.
• Nominatim — Reverse geocoding (OpenStreetMap project). © OpenStreetMap contributors. Used for reverse_geocode.
• ipinfo.io — IP address geolocation (optional upgrade). Used only when LOCATION_MCP_API_KEY is set.

Map data from OpenStreetMap is licensed under the Open Database License (ODbL).

---

Development

# Install dependencies
npm install

# Run in dev mode (hot reload via tsx)
npm run dev

# Lint
npm run lint
npm run lint:fix

# Build (CJS + ESM output)
npm run build

The build output goes to dist/:

• dist/index.cjs — CommonJS bundle
• dist/index.js — ESM bundle (executable, chmod 755)

---

License

MIT © atorresg