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Lumen MCP Server

local only

Lumen runs on your own machine — the client starts it, so there is no endpoint to ping. Last commit 30 Oct 2026.

Self-hostable agentic-AI LMS: catalog, RAG tutor, FSRS reviews, AI authoring, ingest.

—
Installs / week
not published
92
Stars
0 open issues
30 Oct 2026
Last commit
from GitHub
MIT
License
Python

What the code does

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

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.

Builds a file path from a variable tools/recording/record-walkthrough.ts:231
        fs.statSync(path.join(OUT_DIR, b)).mtimeMs -
        exec(compiled, safe_globals, safe_globals)  # noqa: S102
In the project's build, not in the package

Found in continuous integration, deployment or infrastructure files, or in a neighbouring package of the same monorepo. None of this is installed when you add the server: it describes how the project is built and released. We list it because a leaked key in a build pipeline is still a real problem, but it is not something this server does on your machine.

CI pipeline leaks secrets outward .github/workflows/deploy.yml:320
            if curl -fsS --max-time 5 "https://${{ secrets.APP_DOMAIN }}/api/v1/health/live" >/dev/null \

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

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

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Lumen — questions

Answers built from our own checks of this server.

Why is there no uptime for Lumen?
Lumen runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone.
Is Lumen open source?
Yes — it is published under the MIT licence, written in Python and 92 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.