Markdown Notes MCP

Name: Markdown Notes MCP
Author: Narashiman-K

by Narashiman-Kversion 0.1.4i★ –iRuns on your computer

Registry nameio.github.Narashiman-K/markdown-notes-mcp

Install

Overview

Description from the maker (original English)

Convert PDF, Word, Excel, PowerPoint, EPUB and images to Markdown locally, with no upload.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Docs, sheets & office work
You need to fill in: GEMINI_API_KEY, ASSEMBLYAI_API_KEY

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
You fill in yourself: MARKDOWN_MCP_ROOTS, GEMINI_API_KEY, ASSEMBLYAI_API_KEY

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "markdown-notes": {
      "command": "npx",
      "args": [
        "-y",
        "suprasuta-markdown-mcp"
      ],
      "env": {
        "MARKDOWN_MCP_ROOTS": "your-value",
        "GEMINI_API_KEY": "your-value",
        "ASSEMBLYAI_API_KEY": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add markdown-notes --env MARKDOWN_MCP_ROOTS=your-value --env GEMINI_API_KEY=your-value --env ASSEMBLYAI_API_KEY=your-value -- npx -y suprasuta-markdown-mcp

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "markdown-notes": {
      "command": "npx",
      "args": [
        "-y",
        "suprasuta-markdown-mcp"
      ],
      "env": {
        "MARKDOWN_MCP_ROOTS": "your-value",
        "GEMINI_API_KEY": "your-value",
        "ASSEMBLYAI_API_KEY": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "markdown-notes": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "suprasuta-markdown-mcp"
      ],
      "env": {
        "MARKDOWN_MCP_ROOTS": "your-value",
        "GEMINI_API_KEY": "your-value",
        "ASSEMBLYAI_API_KEY": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

MARKDOWN_MCP_ROOTS env
Semicolon-separated folders the server may read. Omit to allow any path.
GEMINI_API_KEY secret env
Optional. Enables cloud image recognition, which can also describe charts. Images are sent to Google only when cloud mode is chosen.
ASSEMBLYAI_API_KEY secret env
Optional. Enables audio transcription, the only feature that cannot run locally.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account Narashiman-K, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Docs, sheets & office worki

More stars than 0% of the other 2176 servers in this category
Published to the registry more recently than 38% of the other 2176 servers in this category
Basic checks equal to or better than 100% of the other 2176 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Markdown Notes MCP safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: GEMINI_API_KEY, ASSEMBLYAI_API_KEY

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.1.4) reached the registry 2 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Agent-Native Calendar, Excel MCP Server, MCP Server for Excel

Alternatives

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Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

Suprasūtā Markdown Notes — MCP server

Let Claude, VS Code and Antigravity read any document on your machine — without uploading it.

Created by [Narashiman Krishnamurthy](https://www.linkedin.com/in/narashimank/)

Licence: free for personal, non-commercial use. See LICENSE.md.

What it does

AI assistants can read plain text, and some can read PDFs. None of them read EPUB, OpenDocument, PowerPoint or a scanned image, and all of them do it by uploading your file to a server.

This converts documents on your own machine and hands back Markdown that has been tidied for a model to read — tables promoted to real Markdown tables, deep indentation flattened, code properly fenced.


Documents	PDF, Word `.docx`, Excel `.xlsx/.xls/.xlsm`, PowerPoint `.pptx`, OpenDocument `.odt/.ods`, EPUB, CSV, TSV, plain text
Images	OCR on the device, with no key and no network
Audio	Transcription — the one feature that cannot run locally

Tools

Tool	What it does
`convert_to_markdown`	Converts one file and saves the `.md` beside the original automatically
`convert_folder_to_markdown`	Converts several files into a chosen directory
`save_summary`	Saves a summary the assistant wrote as `.summary.md` beside the document
`list_supported_formats`	Lists the extensions, and which optional cloud features are configured

About tokens

Converting costs you nothing — it all happens locally. But returning a long document into the conversation does cost tokens, at the same rate as pasting it in by hand.

So a long conversion is saved to disk and only a short preview comes back. A 50-page PDF costs roughly 400 tokens instead of 30,000. Short documents are returned in full, since they are cheap either way. Ask for return_content: "full" to override.

Installing

Claude Desktop — the easy way

Download the .mcpb file from Releases and double-click it. Claude Desktop installs it and asks which folders it may read, and optionally for API keys. No Node, no terminal, no JSON.

Claude Desktop — from source

npm install

npm run build node scripts/install-claude-desktop.mjs --roots "D:\your\documents"

Then restart Claude Desktop completely. The script patches the existing config rather than replacing it, and writes a timestamped backup first.

--roots is optional but recommended: it limits which folders the server will read. Without it, any path the assistant asks for is allowed.

To remove it again: node scripts/install-claude-desktop.mjs --remove

From npm — any MCP host

npm install -g suprasuta-markdown-mcp

Then point your host at the suprasuta-markdown-mcp command, or run it without installing:

"servers": { "suprasuta-markdown": { "command": "npx", "args": ["-y", "suprasuta-markdown-mcp"], "env": { "MARKDOWN_MCP_ROOTS": "D:\\your\\documents" } } } }

VS Code and Antigravity

Both read a standard MCP configuration — the block above works as-is. Antigravity looks in ~/.gemini/config/mcp_config.json, or .agents/mcp_config.json inside a workspace.

To run a checkout rather than the published package, replace command and args with node and the absolute path to dist/server.js.

Optional cloud features

Both are dormant until a key is present. Everything else works without either.

Variable	Enables	What leaves your machine
`GEMINI_API_KEY`	Cloud OCR, which can also describe charts and diagrams	The image, to Google
`ASSEMBLYAI_API_KEY`	Audio transcription	The audio file, to AssemblyAI

Keys are read from the environment, never written to disk and never logged.

Settings are read once, at start-up. An MCP server is a long-running process, so a key or folder saved while it is running does not reach it until the host restarts. If a key you have just entered reports as not configured, restart the host before looking for anything more complicated.

Development

npm install          # .npmrc sets include=dev — do not delete it

npm run build # stages the OCR engine, then bundles with esbuild npm test # 19 tests against the built bundle npm run smoke # converts every file in samples/ and reports npm run typecheck

Why the build is esbuild rather than tsc

src/lib/convert/ is kept byte-identical to the copies in the Windows, web and Android apps, so that drift can be detected rather than discovered. Those files use extensionless imports and one Vite-specific ?url import, neither of which Node's own resolver accepts. esbuild resolves both, so the shared files never need Node-shaped edits.

The runtime hook

Three things genuinely differ between a browser and Node, and src/lib/convert/runtime.ts asks the host rather than sniffing for process:

Hook	Why
`tesseractPaths`	A browser needs URLs and its own worker; Node needs filesystem paths and must not be given the browser worker
`docxSource`	mammoth reads `arrayBuffer` in browsers and `buffer` under Node
`ocrImageInput`	tesseract's Node build cannot decode a `Blob`; it wants a Buffer

Everything else is shared. src/runtime/node.ts supplies the Node answers and shims exactly one browser global, DOMParser.

A caution learned the hard way: that file used to define document too, and

it broke OCR. tesseract.js sniffed for a DOM, found one, took the browser

branch and died on window is not defined. Half a browser is worse than

none — shim the minimum.

Keeping the copies honest

npm run sync:check              # list differences against all three apps

npm run sync:pull web # bring the web app's version in node scripts/sync-converters.mjs --push web

This package is the canonical copy: it is the only one with the runtime hook that lets identical files run in both environments, so fixes start here and flow outward. sync:check reports and exits zero — drift is information, not a build failure.

Privacy Policy

This software collects nothing. No account, no analytics, no telemetry, and no server of its own — document conversion happens entirely on your machine.

Two optional features send data to a third party, and only when you supply your own API key: cloud image recognition sends the image to Google, and audio transcription sends the audio to AssemblyAI. With no keys configured, the software makes no network connections at all. API keys are read from the environment, never written to disk and never logged.

Full policy, covering collection, storage, retention, third-party sharing and contact details: [PRIVACY.md](PRIVACY.md).


Windows app	Microsoft Store · source
Web app	markdown-notes-psi.vercel.app · source
Android	Install the web app from Chrome · older native build, no longer maintained

Markdown Notes MCP

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Docs, sheets & office worki

Common questions

Alternatives

Agent-Native Calendar

Excel MCP Server

MCP Server for Excel

README from the maker

Suprasūtā Markdown Notes — MCP server

What it does

Tools

About tokens

Installing

Claude Desktop — the easy way

Claude Desktop — from source

From npm — any MCP host

VS Code and Antigravity

Optional cloud features

Development

Why the build is esbuild rather than tsc

The runtime hook

Keeping the copies honest

Privacy Policy

Related