cesium-mcp

Overview

Cesium MCP provides a comprehensive bridge between AI systems and CesiumJS 3D globe visualization. It exposes 58 tools across 12 categories that enable natural language control over 3D GIS operations including camera movements, entity manipulation, layer management, animations, and spatial analysis. The project offers three entry points: a browser agent for zero-backend implementation, function calling integration for web applications, and MCP runtime for Claude Desktop/Cursor/Dify integration. The architecture is built around a protocol-agnostic dispatcher that supports multiple AI drivers while maintaining a consistent tool interface.

Try asking AI

After installing, here are 5 things you can ask your AI assistant:

• flyTo

  Moves the camera to a specific location or entity

  Try:Fly to the Eiffel TowerTry:Go to New York City
• addMarker

  Adds a marker entity at specified coordinates

  Try:Add a red marker at the Eiffel TowerTry:Place a blue marker at Tokyo Tower
• addModel

  Loads and displays a 3D model at specified location

  Try:Show a 3D car model at this locationTry:Add a building model at these coordinates
• addPolygon

  Creates a polygon entity with specified coordinates

  Try:Draw a polygon around Central ParkTry:Create a triangular boundary
• setBasemap

  Changes the base map imagery of the globe

  Try:Switch to satellite imageryTry:Use street map view
• screenshot

  Captures and saves the current view as an image

  Try:Take a screenshot of this viewTry:Capture the current scene
• measure

  Measures distances or areas on the globe

  Try:Measure the distance between these two pointsTry:Calculate the area of this polygon
• createAnimation

  Creates an animation along a specified path

  Try:Create an animation flying from Paris to LondonTry:Make a path animation following this route
• load3dTiles

  Loads and displays 3D tilesets

  Try:Load the 3D building tiles for this cityTry:Show the terrain model
• addGeoJsonLayer

  Adds a layer from GeoJSON data

  Try:Display this GeoJSON file on the mapTry:Show the boundaries from this GeoJSON
• geocode

  Converts location names to geographic coordinates

  Try:Find coordinates for the Eiffel TowerTry:Get the location of Mount Everest
• setView

  Sets the camera view with specific options

  Try:Set an overview view of EuropeTry:Show a birds-eye view of this area

Comparable tools

Installation

npm install cesium-mcp-bridge

# stdio mode (Claude Desktop, VS Code, Cursor)
npx cesium-mcp-runtime

# HTTP mode (Dify, remote/cloud MCP clients)
npx cesium-mcp-runtime --transport http --port 3000

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

FAQ

What is the difference between cesium-mcp-bridge and cesium-mcp-runtime?

cesium-mcp-bridge is the core protocol-agnostic command dispatcher with 60+ tools. cesium-mcp-runtime is the MCP server implementation that exposes the bridge via stdio or HTTP transport for Claude Desktop/Cursor/Dify integration.

Can I use this with other AI systems besides Claude Desktop/Cursor?

Yes, the browser-agent example works with any OpenAI-compatible API. The cesium-mcp-bridge can be integrated into any web app that supports function/tool calling, regardless of the AI provider.

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