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Feishu User Plugin MCP Server

local only

Feishu User Plugin runs on your own machine — the client starts it, so there is no endpoint to ping. Last commit 6 Jul 2026.

Feishu/Lark MCP server + CLI tool. 85 tools, 3 auth layers. Send as user via cookie+protobuf.

—
Installs / week
not published
11
Stars
1 open issue
6 Jul 2026
Last commit
from GitHub
MIT
License
JavaScript

What the code does

We read the source, 2 d ago · rules 995398eba69f

A tool parameter reaches a dangerous call

A value the model can set ends up inside a file or shell call. That is not a flaw by itself — for a terminal server it is the job — but it is where things go wrong when it is not.

A tool parameter reaches a file or shell call download_doc_image.image_token → src/tools/diagnostics.js:73
    fs.writeFileSync(savePath, Buffer.from(base64, 'base64'));
Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

Runs an external command src/test-all.js:432, src/oauth.js:344
    try { execSync(`node ${_p.join(__dirname, t + '.js')}`, { stdio: 'inherit' }); }
Builds a file path from a variable src/test-lark-desktop.js:19
    const dir = path.join(FIX_ROOT, hash);

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

A tool parameter here reaches a dangerous call

That is not a flaw by itself — but it is where things go wrong when it is not the job. We re-read this code on every release. Watch it and you hear from us the day another one appears.

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Feishu User Plugin — questions

Answers built from our own checks of this server.

Why is there no uptime for Feishu User Plugin?
Feishu User Plugin runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone.
Is Feishu User Plugin open source?
Yes — it is published under the MIT licence, written in JavaScript, 11 stars on GitHub and 1 open issue. The source link is on this page, so you can read exactly what it does with your data before you connect it.