# Cesium MCP Dev (MCP server)

> Cesium MCP Dev is an MCP server that adds developer tools to AI assistants such as Claude Desktop, Claude Code and Cursor. CesiumJS API docs, code generation and development tools for IDE AI assistants. It has 140 GitHub stars, is released under the MIT license and runs locally with npx -y cesium-mcp-dev.

MCP Server for IDE AI assistants -- Cesium API documentation, code generation, and Entity builder. cesium-mcp-dev helps AI coding assistants (GitHub Copilot, Cursor, Claude Code, etc.) write better CesiumJS code by providing API documentation lookup, code snippet generation, and Entity configuration building -- all through the MCP protocol.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/gaopengbin/cesium-mcp |
| GitHub stars | 140 |
| License | MIT |
| Language | JavaScript |
| Transport | stdio |
| Packages | npm: cesium-mcp-dev |
| Remote URL | none |
| Needs API key | no |
| Official | no |
| Works with | Claude Desktop, Claude Code, Cursor, VS Code |
| Category | Developer tools |
| Latest release | cesium-mcp-runtime@1.146.0 (Sep 28, 2026) |
| Last commit | Oct 6, 2026 |
| MCP registry name | io.github.gaopengbin/cesium-mcp-dev |

## Install

### Claude Desktop (claude_desktop_config.json)

```json
{
  "mcpServers": {
    "cesium-mcp-dev": {
      "command": "npx",
      "args": [
        "-y",
        "cesium-mcp-dev"
      ]
    }
  }
}
```

Settings > Developer > Edit Config. macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\. Restart Claude Desktop afterwards.

### Claude Code

```sh
claude mcp add --transport stdio cesium-mcp-dev -- npx -y cesium-mcp-dev
```

### Cursor (.cursor/mcp.json)

```json
{
  "mcpServers": {
    "cesium-mcp-dev": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "cesium-mcp-dev"
      ]
    }
  }
}
```

Project file; use ~/.cursor/mcp.json to enable it in every project.

### VS Code (.vscode/mcp.json)

```json
{
  "servers": {
    "cesium-mcp-dev": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "cesium-mcp-dev"
      ]
    }
  }
}
```

Config formats checked against the official docs on 2026-10-07.

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