Atlas / MCP servers / gaopengbin / Cesium

CesiumBLOCK

mcp/gaopengbin/cesium

Protocol-agnostic CesiumJS AI control runtime for MCP, WebMCP, function calling, and browser agents.

Verdict
BLOCK
Grade
D
Trust score
69 /100
Exposed tools
8 6r · 2w · 0d
Transport
stdio
License
MIT
Stars
140
01

Overview

From the repository's own README, as read at the audited commit. Badges and raw HTML are left out.

[!IMPORTANT] ## 📣 作者正在求职 · 北京 AI 应用开发 · Agent 应用开发 · AI 产品全栈 我是高鹏彬,有约 6 年软件开发经验。如果你们团队正在招人,欢迎联系,也感谢帮忙内推或转发! ### 📄 查看简历 PDF · ✉️ 联系我 查看我的项目与个人介绍 → · 邮箱:[email protected]
[!TIP] 📣 Built with Cesium MCP? / 谁在使用 Cesium MCP? Share your project, screenshots, or feedback—work in progress is welcome! / 欢迎分享项目、截图和使用反馈,开发中的作品也欢迎! [Share / 分享 → Issue #44](https://github.com/gaopengbin/cesium-mcp/issues/44) · Discussion / 讨论区

A protocol-agnostic Cesium AI control runtime for MCP, WebMCP, function calling, and browser agents

cesium-mcp-bridge is the protocol-agnostic Cesium command executor. Separate adapters expose it to browser-only agents, WebMCP browser agents, function calling, or MCP — your choice.

Four integration paths: Browser Agent (simplest, zero backend) · WebMCP (page-local browser tools) · function calling (embed in your web app) · MCP runtime (Claude Desktop / Cursor / Dify)

The local Runtime is only required for external MCP hosts. Browser Agent, WebMCP, and function-calling integrations execute the same commands directly in the web application.

Try it now — open the live browser demo, no install, no signup.

Website · 中文

Read from source at commit 87d364e9cfb7OBSERVED · 2026-10-07
02

Connect

Built from this server's own package name, version and transport as found in its source — not copied from anyone's documentation, so it cannot drift against a page we do not control. Replace the environment placeholders with a token scoped to the least it needs.

claude-code (npm)
claude mcp add cesium-mcp-dev -- npx -y [email protected]
03

Exposed tools (8)

6 read · 2 write · 0 destructive.

ToolRiskDescription
addMarkerwriteAdd a marker.
cesium-quickstartreadQuick reference for using Cesium MCP tools
cesium_api_lookupread
cesium_code_genread
cesium_entity_builderread
enable_toolsetwriteEnable a tool group to make its tools available. Call list_toolsets first to see available groups.
geocodereadResolve a place name.
list_toolsetsreadList all available tool groups and their enabled status. Call this to discover additional capabilities before asking the user to configure anything.
04

Trust audit

BLOCKgrade D · trust 69/100 Do not install this without reading the findings. The audit found something that could harm you or your machine.

LayerWhat it checksResult
L0Provenance & inventoryWARN
L1Static analysis of the codeFAIL
L2Instruction surface (what it tells the agent)FAIL
L3Class-specific surfacePASS
L4Behavioural (sandbox)SKIPPED

What the source does

Filesystem
none-observed
Network
declared (2 observation(s))
Shell
declared (1 observation(s))
Dependencies
not all pinned
Secrets in source
none-found

Findings (25)

HIGHCode injection · code.eval_exec · CWE-78, CWE-94, CWE-95
packages/cesium-mcp-runtime/.smithery/shttp/module.js:2941
const makeValidate = new Function(`${names_1.default.self}`, `${names_1.default.scope}`, sourceCode);
Why it matters. evaluates text as code
Fix. remove; use a parser or a dispatch table
HIGHPrompt injection · prompt.credential_read · CWE-94, CWE-1427
plugins/cesium-map/skills/cesium-map/SKILL.md:27
- Every map operation requires its issued sessionId. Treat it as a bearer access credential and keep it in the current host conversation. Never publish it, enumerate other maps, or omit it to fall bac
Why it matters. asks the agent to read credentials
MEDIUMInventory / provenance · inv.binary · CWE-1104
packages/cesium-mcp-runtime/.gitignore
.gitignore
Why it matters. a compiled or binary member cannot be reviewed from source
Fix. ship source, or explain the binary in the README
MEDIUMNetwork egress · net.raw_ip · CWE-200, CWE-319
packages/cesium-mcp-runtime/dist/chunk-5ZJYO2RQ.js:134
const resp = await fetch(`http://127.0.0.1:${_relayPort}/api/relay`, {
LOWInventory / provenance · inv.hidden_file · CWE-1104
examples/browser-agent/.dev.vars.example
.dev.vars.example
Why it matters. hidden member outside the usual dotfiles
Fix. review its purpose
LOWFilesystem / path · fs.traversal · CWE-22, CWE-59
examples/browser-agent/contract-parity.test.ts:5
import { cesiumBrowserToolContracts } from '../../packages/cesium-mcp-contracts/src/index.js'
LOWFilesystem / path · fs.traversal · CWE-22, CWE-59
examples/browser-agent/contract-parity.test.ts:6
import { defaultBridgeExecutorNames } from '../../packages/cesium-mcp-bridge/src/executors/executor-registry.js'
LOWFilesystem / path · fs.traversal · CWE-22, CWE-59
examples/browser-agent/contract-parity.test.ts:7
import { getCesiumRuntimeToolMetadata } from '../../packages/cesium-mcp-runtime/src/tool-manifest.js'
LOWFilesystem / path · fs.traversal · CWE-22, CWE-59
examples/browser-agent/contract-parity.test.ts:11
} from '../../packages/cesium-mcp-webmcp/src/index.js'
LOWFilesystem / path · fs.traversal · CWE-22, CWE-59
examples/browser-agent/index.test.ts:7
} from '../../packages/cesium-mcp-contracts/src/index.js'
LOWNetwork egress · net.raw_ip · CWE-200, CWE-319
docs/guide/getting-started.md:162
| `HTTPS_PROXY` | — | HTTP proxy URL for geocode requests (e.g. `http://127.0.0.1:10808`) |
LOWNetwork egress · net.raw_ip · CWE-200, CWE-319
docs/guide/getting-started.md:177
"HTTPS_PROXY": "http://127.0.0.1:10808"
LOWNetwork egress · net.raw_ip · CWE-200, CWE-319
docs/zh-CN/guide/getting-started.md:162
| `HTTPS_PROXY` | — | geocode 请求的 HTTP 代理地址(如 `http://127.0.0.1:10808`) |
LOWNetwork egress · net.raw_ip · CWE-200, CWE-319
docs/zh-CN/guide/getting-started.md:177
"HTTPS_PROXY": "http://127.0.0.1:10808"
LOWObfuscation / stealth · obf.base64_blob · CWE-506, CWE-94
examples/browser-agent/index.html:5
<meta http-equiv="origin-trial" content="AjyKQKflzhkSF12wj9hoZ/Gu0bb+EHLwE4meIVze1LV3elLGJrlBqeFl7GkmJ4EQhuNaaUcUNEMMv4W6YhXHVwkAAABeeyJvcmlnaW4iOiJodHRwczovL2Nlc2l1bS1icm93c2VyLWFnZW50LnBhZ2VzLmRldjo
LOWObfuscation / stealth · obf.decode_call · CWE-506, CWE-94
packages/cesium-mcp-runtime/.smithery/shttp/module.js:7807
const decoded = JSON.parse(atob(base642));
LOWObfuscation / stealth · obf.decode_call · CWE-506, CWE-94
packages/cesium-mcp-runtime/.smithery/shttp/module.js:12343
atob(data);
LOWObfuscation / stealth · obf.decode_call · CWE-506, CWE-94
packages/cesium-mcp-runtime/.smithery/shttp/module.js:12404
const parsedHeader = JSON.parse(atob(header));
LOWObfuscation / stealth · obf.decode_call · CWE-506, CWE-94
packages/cesium-mcp-runtime/.smithery/shttp/module.js:16063
atob(val);
LOWSupply chain · supply.unpinned · CWE-829, CWE-1357
examples/webmcp-integration/package.json
cesium, cesium-mcp-webmcp, typescript, vite, vite-plugin-static-copy
Why it matters. 5 dependency range(s) float
Fix. pin exact versions or ship a lockfile
LOWSupply chain · supply.unpinned · CWE-829, CWE-1357
package.json
@changesets/changelog-github, @changesets/cli, @eslint/js, eslint, patch-package, playwright, puppeteer-core, typescript
Why it matters. 12 dependency range(s) float
Fix. pin exact versions or ship a lockfile
LOWSupply chain · supply.unpinned · CWE-829, CWE-1357
packages/cesium-mcp-bridge/package.json
cesium-mcp-contracts, heatmap.js, cesium, tsup, typescript
Why it matters. 5 dependency range(s) float
Fix. pin exact versions or ship a lockfile
LOWSupply chain · supply.unpinned · CWE-829, CWE-1357
packages/cesium-mcp-contracts/package.json
tsup, typescript
Why it matters. 2 dependency range(s) float
Fix. pin exact versions or ship a lockfile
LOWSupply chain · supply.unpinned · CWE-829, CWE-1357
packages/cesium-mcp-dev/package.json
@modelcontextprotocol/server, zod, @modelcontextprotocol/client, @types/node, tsup, tsx, typescript
Why it matters. 7 dependency range(s) float
Fix. pin exact versions or ship a lockfile
LOWPrompt injection · prompt.transfer_instruction · CWE-94, CWE-1427
plugins/cesium-map/README.md:51
The MCP endpoint is `https://laogao.xyz/cesium-map/mcp`. Every map operation requires the map's issued `sessionId`. Treat this value as a temporary bearer access credential and do not share it. Maps e
Why it matters. an instruction to move sensitive data to an outside destination
Fix. remove; a skill never needs the user's secrets off the machine

Gates applied: no_behavioural_pass.

Audited 2026-10-07 · audit v0.4.1 · source sha 87d364e9cfb7full audit observations/trust-audit/mcp-server/gaopengbin__cesium.json · Report an issue / request a re-scan
05

Audit history

Every audit this server has had. A grade with a past is a grade somebody is still checking.

DateSourceVerdictGradeScoreChange
2026-10-0787d364e9cfb7BLOCKD69first audit
06

Questions

What is the Cesium MCP server?

Protocol-agnostic CesiumJS AI control runtime for MCP, WebMCP, function calling, and browser agents.

What tools does Cesium expose?

8 in total: 6 read-only, 2 that write, and 0 that can delete or overwrite. Every one is listed on this page with its risk.

Is Cesium safe to connect to an agent?

No — not without reading the findings first. The audit graded it D (69/100) and found 2 critical or high issues in the source. Each one is listed on this page with the file and line it is on.

What credentials does Cesium need?

It reads CESIUM_ION_TOKEN, DEEPSEEK_API_KEY and MODEL_EVAL_API_KEY from the environment. Give it a token scoped to the least it needs — an agent that can be talked into calling a tool can be talked into calling it with your credentials.

How does Cesium run?

It speaks stdio, so it runs as a local process your client starts. It is published on npm as cesium-mcp-webmcp at 0.4.0.

How current is this page?

The grade is for one exact copy of the source (87d364e9cfb7), read on 2026-10-07. The repository is watched and re-audited when it changes.

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