geomelon-mcp

MCP server for the Geomelon geographic API. Exposes cities, countries, regions, and languages as tools any MCP-compatible AI client can call.

Two transports are included:

| Binary | Transport | Use case | |---|---|---| | geomelon-mcp | stdio | Claude Desktop, Cursor, Cline, Continue | | geomelon-mcp-http | HTTP (Streamable) | Claude Code, remote / hosted server |

Requirements

• Node.js 18+
• A RapidAPI key with the Geomelon API subscribed

Claude Code (HTTP)

Create a .env file in the directory you'll run the server from:

cp .env.example .env
# then edit .env and set GEOMELON_API_KEY

Start the server (dotenv loads .env automatically):

npx geomelon-mcp-http

Register it with Claude Code:

claude mcp add --transport http geomelon http://localhost:3000/mcp

Verify it's connected:

claude mcp list

The server must be running whenever you use Claude Code. To use a different port set PORT=your_port and update the URL in the claude mcp add command accordingly.

Claude Desktop (stdio)

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

{
  "mcpServers": {
    "geomelon": {
      "command": "npx",
      "args": ["-y", "geomelon-mcp"],
      "env": {
        "GEOMELON_API_KEY": "your_rapidapi_key_here"
      }
    }
  }
}

Restart Claude Desktop after saving.

Cursor / Windsurf / Cline (stdio)

Add to your editor's MCP config:

{
  "geomelon": {
    "command": "npx",
    "args": ["-y", "geomelon-mcp"],
    "env": {
      "GEOMELON_API_KEY": "your_rapidapi_key_here"
    }
  }
}

Remote / hosted HTTP server

Create a .env file on your server:

cp .env.example .env
# set GEOMELON_API_KEY and PORT in .env

Start the server:

npx geomelon-mcp-http

Then register with any MCP client using http://your-host:3000/mcp as the URL.

The HTTP transport is stateless — each request is independent, no session management needed.

Available tools

Cities

| Tool | Description | |---|---| | search_cities | Search by name, country code, region, population range, sort order | | get_city | Full details for a city by UUID | | get_city_translations | All name translations for a city by UUID | | get_city_settlement_types | Settlement-type classifications for a city by UUID | | cities_by_coordinates_closest | Cities nearest to a lat/lon, ordered by distance | | cities_by_coordinates_largest | Largest cities near a lat/lon, ordered by population | | cities_distance | Distance in km between two cities |

Countries

| Tool | Description | |---|---| | list_countries | List countries, filter by name prefix or telephone dialing code | | get_country | Full details for a country by UUID (includes translations and regions) | | get_country_translations | Name translations for a country by UUID | | get_country_regions | All administrative regions for a country by UUID |

Regions

| Tool | Description | |---|---| | list_regions | List regions, filter by country UUID | | get_region | Full details for a region by UUID | | get_region_translations | Name translations for a region by UUID |

Languages

| Tool | Description | |---|---| | list_languages | List all languages in the database | | get_language | Details for a language by UUID |

Compound tools

These tools chain multiple API calls internally to save round-trips.

| Tool | Description | |---|---| | find_cities_near_city | Given a city UUID, find nearby cities ordered by distance or population | | city_context | Fetch a city together with its full country and region details in one call | | country_overview | Fetch a country (by UUID or name), its regions, and top cities by population | | compare_cities | Fetch two cities and the distance between them in one call | | search_cities_in_country | Search cities using a country name instead of an ISO code |