GIS Data Conversion MCP server

The GIS Data Conversion MCP server provides LLMs with powerful geographic data conversion capabilities. It enables transformations between various spatial data formats, including coordinate systems and spatial references, making it easier to work with geographic information.

Features

• Reverse Geocoding - Convert coordinates to location information
• WKT/GeoJSON Conversion - Convert between Well-Known Text and GeoJSON formats
• CSV/GeoJSON Conversion - Transform tabular data with coordinates to GeoJSON and vice versa
• TopoJSON/GeoJSON Conversion - Convert between GeoJSON and TopoJSON (topology-preserving format)
• KML/GeoJSON Conversion - Transform KML files to GeoJSON format

Installation

To use this server with Claude Desktop, you need to configure it in the MCP settings based on your operating system:

For macOS

Edit the file at '~/Library/Application Support/Claude/claude_desktop_config.json':

{
  "mcpServers": {
    "gis-dataconversion-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "a11y-mcp-server"
      ]
    }
  }
}

For Windows

Edit the file at %APPDATA%\Claude\settings\claude_mcp_settings.json

For Linux

Edit the file at ~/.config/Claude/settings/claude_mcp_settings.json

Available Tools

Converting Between Formats

WKT and GeoJSON

• wkt_to_geojson: Converts Well-Known Text (WKT) to GeoJSON format
• geojson_to_wkt: Converts GeoJSON to Well-Known Text (WKT) format

CSV and GeoJSON

• csv_to_geojson: Converts CSV with geographic data to GeoJSON

  Parameters:

  • csv (required): CSV string to convert
  • latfield (required): Field name for latitude
  • lonfield (required): Field name for longitude
  • delimiter (optional): CSV delimiter (default is comma)

• geojson_to_csv: Converts GeoJSON to CSV format

TopoJSON and GeoJSON

• geojson_to_topojson: Converts GeoJSON to TopoJSON format (more compact with shared boundaries)

  Parameters:

  • geojson (required): GeoJSON object to convert
  • objectName (optional): Name of the TopoJSON object to create (default: "data")
  • quantization (optional): Quantization parameter for simplification (default: 1e4, 0 to disable)

• topojson_to_geojson: Converts TopoJSON to GeoJSON format

  Parameters:

  • geojson (required): GeoJSON object to convert
  • objectName (optional): Name of the TopoJSON object to create (default: "data")

KML and GeoJSON

• kml_to_geojson: Converts KML to GeoJSON format
• geojson_to_kml: Converts GeoJSON to KML format

Geocoding

• coordinates_to_location: Converts latitude/longitude coordinates to location name using reverse geocoding

How to install this MCP server

For Claude Code

To add this MCP server to Claude Code, run this command in your terminal:

claude mcp add-json "gis-dataconversion-mcp" '{"command":"npx","args":["-y","a11y-mcp-server"]}'

See the official Claude Code MCP documentation for more details.

For Cursor

There are two ways to add an MCP server to Cursor. The most common way is to add the server globally in the ~/.cursor/mcp.json file so that it is available in all of your projects.

If you only need the server in a single project, you can add it to the project instead by creating or adding it to the .cursor/mcp.json file.

Adding an MCP server to Cursor globally

To add a global MCP server go to Cursor Settings > Tools & Integrations and click "New MCP Server".

When you click that button the ~/.cursor/mcp.json file will be opened and you can add your server like this:

{
    "mcpServers": {
        "gis-dataconversion-mcp": {
            "command": "npx",
            "args": [
                "-y",
                "a11y-mcp-server"
            ]
        }
    }
}

Adding an MCP server to a project

To add an MCP server to a project you can create a new .cursor/mcp.json file or add it to the existing one. This will look exactly the same as the global MCP server example above.

How to use the MCP server

Once the server is installed, you might need to head back to Settings > MCP and click the refresh button.

The Cursor agent will then be able to see the available tools the added MCP server has available and will call them when it needs to.

You can also explicitly ask the agent to use the tool by mentioning the tool name and describing what the function does.

For Claude Desktop

To add this MCP server to Claude Desktop:

1. Find your configuration file:

• macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
• Windows: %APPDATA%\Claude\claude_desktop_config.json
• Linux: ~/.config/Claude/claude_desktop_config.json

2. Add this to your configuration file:

{
    "mcpServers": {
        "gis-dataconversion-mcp": {
            "command": "npx",
            "args": [
                "-y",
                "a11y-mcp-server"
            ]
        }
    }
}

3. Restart Claude Desktop for the changes to take effect