# Cesium MCP Runtime (MCP server)

> Cesium MCP Runtime is an MCP server that enables AI Agents to control a Cesium globe in real-time via the Model Context Protocol. Release channel: latest uses the stable MCP SDK v2 and supports both MCP 2025-11-25 and 2026-07-28 from… It has 140 GitHub stars, is released under the MIT license and runs locally with npx -y cesium-mcp-runtime.

MCP Server that enables AI Agents to control a Cesium globe in real-time via the Model Context Protocol. Release channel: latest uses the stable MCP SDK v2 and supports both MCP 2025-11-25 and 2026-07-28 from the same stdio/HTTP entry. If you only want to try the "AI + Cesium" feel, examples/browser-agent is the recommended starting point — zero backend, runs in three minutes. See Which mode should I use?.

## Key facts

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

## Install

### Claude Desktop (claude_desktop_config.json)

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

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-runtime -- npx -y cesium-mcp-runtime
```

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

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

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

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

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

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

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