GeoIP MCP Server

A Model Context Protocol (MCP) server providing IP geolocation and ASN lookup services using MaxMind GeoIP2 databases.

Features

• Single & Bulk IP Geolocation: Lookup for IPv4 and IPv6 addresses, with batch concurrency (configurable via GEOIP_CONCURRENCY).

• ASN Information: Retrieve Autonomous System Number and organization.

• Country-only Lookup: Efficient country-level lookup tool.

• Comprehensive Location Data: Country, city, subdivision, postal code, latitude/longitude, and network info.

• Distance Calculation: Compute distance between two coordinates.

• Caching: In-memory cache for fast repeated lookups (configurable via GEOIP_CACHE_TTL).

• Flexible Output: JSON, summary, and CSV formats.

• Health Checks & Performance Monitoring: Tools for server and database health.

• Prometheus Metrics: Optional exporter via PROMETHEUS_PORT.

• MCP Protocol: Compatible with MCP clients.

Related MCP server: Playable Locations MCP Server

Setup

Option 1: Automatic Download (Recommended)

The server can automatically download and update the required databases if you provide a MaxMind License Key.

1. Get a License Key: Register for a free MaxMind account at https://www.maxmind.com/en/geolite2/signup and generate a license key.

2. Set Environment Environment Variable:

   export MAXMIND_LICENSE_KEY="your_license_key_here"

3. Run the Server: The server will download the databases to ~/.local/share/mcp_geoip2/ on startup.

Option 2: Manual Installation

1. Download Databases: Download GeoLite2-City.mmdb, GeoLite2-ASN.mmdb, and optionally GeoLite2-Country.mmdb from MaxMind.

2. Place Files: Move the .mmdb files to the default data directory:

   mkdir -p ~/.local/share/mcp_geoip2/ mv *.mmdb ~/.local/share/mcp_geoip2/

Configuration (Optional)

You can override the default paths if needed:

Usage

Run with uvx (Recommended)

You can run the server directly without installing dependencies manually:

Local Dev Setup

The server communicates via MCP protocol (stdio by default).

Available Tools

1. geolocate_ip

Get geolocation for a single IP.

Parameters:

• ip_address (string, required)

• include_asn (boolean, default: true)

• output_format (json|summary|csv, default: json)

• use_cache (boolean, default: true)

2. geolocate_multiple_ips

Batch geolocation for multiple IPs (concurrent, configurable).

Parameters:

• ip_addresses (array of strings, required)

• include_asn (boolean, default: true)

• output_format (json|summary|csv, default: json)

• use_cache (boolean, default: true)

3. get_asn_info

Get ASN info for an IP.

Parameters:

• ip_address (string, required)

4. calculate_distance

Calculate distance between two coordinates.

Parameters:

• lat1, lon1 (float, required): Point 1

• lat2, lon2 (float, required): Point 2

• unit (km|mi, default: km)

5. server_management

Server operations.

Parameters:

• action (clear_cache|get_stats|reload_databases, required)

6. geolocate_country

Country-only geolocation for a single IP.

Parameters:

• ip_address (string, required)

• output_format (json|summary|csv, default: json)

• use_cache (boolean, default: true)

Example Output

Error Handling

• Invalid IP address formats

• Missing or unreadable database files

• IP not found in database

• Network/database errors

Health & Monitoring

• Use health_check.py for system/database health.

• Use performance_monitor.py for performance metrics.

• Prometheus metrics available if PROMETHEUS_PORT is set.

Docker

A Dockerfile and docker-compose.yaml are provided.

License

This project is licensed under the GNU GPL v3.

Credits