Caelune MCP Server

by ellismorrow Your server? Claim it

local only

Caelune runs on your own machine — the client starts it, so there is no endpoint to ping. Last commit 8 Aug 2026.

Read-only local-first MCP server for private Markdown, PDF, and Tika-backed search on Windows.

—

Installs / week

not published

Stars

1 open issues

8 Aug 2026

Last commit

from GitHub

MIT

License

Python

What the code does

We read the source, 22 h ago · rules 3dff92dd89df

Evidence

Things with no honest explanation: a promise that contradicts the code, code that runs at install time while hiding what it does, data leaving the machine.

Claims read-only, but the code runs commands omniclip_rag/extensions/runtimes/tika_runtime.py:290, omniclip_rag/process_utils.py:29, omniclip_rag/ui_next_qt/config_workspace.py:5316 и ещё 2

            process = subprocess.Popen(

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 omniclip_rag/extensions/runtimes/tika_runtime.py:290, omniclip_rag/process_utils.py:29, omniclip_rag/ui_next_qt/config_workspace.py:5316 и ещё 2

            process = subprocess.Popen(

Dumps the whole environment omniclip_rag/query_subprocess.py:40, omniclip_rag/startup_prewarm.py:146, omniclip_rag/watch_subprocess.py:44 и ещё 1

    environment = dict(os.environ)

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

We found things in this code

Code changes quietly between releases, and nobody reads the diff of a dependency. We do, on every release — watch Caelune and you get told the day something new turns up.

Alternatives to Caelune

same job, measured the same way

OmniClip RAG

by ellismorrow

Read-only local-first MCP server for private Markdown, PDF, and Tika-backed search on Windows.

local only

OmniClip RAG

by msjsc001

Read-only local-first MCP server for private Markdown, PDF, and Tika-backed search on Windows.

local only

pdffr

by amersarhan

Local, private PDF to Markdown for agents: geometry-first parsing, OCR only where needed.

61 installs/wk local only

Quillpdf MCP

by purpledirective

Local-first PDF tools (merge, split, rotate, watermark, Bates, metadata) as MCP server + CLI.

42 installs/wk local only

PDF to Markdown (pdf2md.dev)

by pdf2md

Hosted MCP server: convert PDFs to clean, LLM-ready Markdown with tables, formulas and OCR.

answering

iCloud Drive Docs

by js713-lab

Read-only MCP server for listing, searching, downloading, and reading iCloud Drive documents.

local only

The Office Worker

by cafra-house

Local-first document MCP for AI agents: create, read, secure and sign PDF/Word/Excel/PPTX.

3 632 installs/wk local only

PDF Card MCP

by velyan

Local-first MCP server + CLI that turns PDFs into source-linked, card-based HTML readers.

64 installs/wk local only

Caelune — questions

Answers built from our own checks of this server.

Why is there no uptime for Caelune?

Caelune runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone.

Is Caelune open source?

Yes — it is published under the MIT licence, written in Python, 45 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.