Prototype · Preview: every server in the official registry, synced every 30 minutes. Reviews and accounts come in a later step.
PopNx MCPMCP servers for people who use AI · explained in plain words

Unmarkdown

by UnMarkdownversion 1.0.3i★ –iComputer or cloud
Registry nameio.github.UnMarkdown/mcp-server

Install

Overview

Description from the maker (original English)

The document publishing layer for AI tools. Convert markdown to 6 destinations, 62 templates.

PopNx MCP’s three pillars

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

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: Computer or cloud
  • Transport: stdio, Streamable HTTP
  • Category: Docs, sheets & office work
  • You need to fill in: UNMARKDOWN_API_KEY

Install

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

Before you install

  • Basic checks: 1 of 1 passed
  • Runs on the maker’s server: what you ask it goes through their server.
  • You fill in yourself: UNMARKDOWN_API_KEY

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

You need

  • Runs in the cloudNothing to install; it connects over the internet
  • npmNode.js installed (for the npx command)

Which app do you use?

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

Works in Claude on the web, desktop and mobile:

  1. Open Settings → Connectors
  2. Press Add custom connector
  3. Paste the address below and press Add
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Add2https://…3
https://unmarkdown.com/api/mcp

Or run it on your computer

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

{
  "mcpServers": {
    "unmarkdown": {
      "command": "npx",
      "args": [
        "-y",
        "@un-markdown/mcp-server"
      ],
      "env": {
        "UNMARKDOWN_API_KEY": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add --transport http unmarkdown https://unmarkdown.com/api/mcp

Or run it on your computer

claude mcp add unmarkdown --env UNMARKDOWN_API_KEY=your-value -- npx -y @un-markdown/mcp-server

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": {
    "unmarkdown": {
      "url": "https://unmarkdown.com/api/mcp"
    }
  }
}

Or run it on your computer

Open in Cursor

Or copy the settings yourself

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

{
  "mcpServers": {
    "unmarkdown": {
      "command": "npx",
      "args": [
        "-y",
        "@un-markdown/mcp-server"
      ],
      "env": {
        "UNMARKDOWN_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": {
    "unmarkdown": {
      "type": "http",
      "url": "https://unmarkdown.com/api/mcp"
    }
  }
}

Or run it on your computer

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "unmarkdown": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@un-markdown/mcp-server"
      ],
      "env": {
        "UNMARKDOWN_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.

ChatGPT connects only to servers on the internet:

  1. Open ChatGPT on the web → Settings → Connectors (Apps)
  2. Press Create or Add (some plans need Developer mode under Advanced first)
  3. Paste the address below, give it a name and save
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Create2https://…3
https://unmarkdown.com/api/mcp

Menu names can differ slightly by plan and over time.

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

Values you fill in

  • UNMARKDOWN_API_KEY secret required env
    Your Unmarkdown API key (starts with um_). Get one from Settings > API in your Unmarkdown account.

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

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

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 UnMarkdown, 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 checked yet

    Endpoint responds

    Not checked yet; we check endpoints in rotation

  • … Not checked yet

    Sign-in with OAuth

    Not checked yet; we check endpoints in rotation

  • … Not checked yet

    No hidden instructions in tool descriptions

    Not checked yet; we read the tool list when we check the endpoint

Compared with others in Docs, sheets & office worki

  • More stars than 0% of the other 2172 servers in this category
  • Published to the registry more recently than 3% of the other 2172 servers in this category
  • Basic checks equal to or better than 100% of the other 2172 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 Unmarkdown 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: UNMARKDOWN_API_KEY

Does it run on my computer or in the cloud?

Either way works: install it on your computer or connect to the cloud version.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.0.3) reached the registry 9 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

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

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Agent-Native Google Calendar - manage events, sync, and public booking

Runs in the cloud★ 7,620MITUpdated 2 months ago
Install

Excel MCP Server

by haris-musa

Lets AI create and edit Excel files itself, including formulas, charts and PivotTables, without Excel installed.

Runs on your computer★ 4,276MITUpdated 6 days ago
Install

Excel automation for AI - Sheets, Power Query, DAX, VBA, Tables, Ranges and more. Windows only.

Runs on your computer★ 847MITUpdated 3 days ago
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.

Unmarkdown MCP Server

A Model Context Protocol (MCP) server that connects AI assistants to the Unmarkdown API. Convert markdown to beautifully formatted documents, manage your document library, and publish pages to the web, all from inside Claude, Cursor, VS Code, or any MCP-compatible client.

Also available as: Chrome Extension | Web App | REST API

Features

  • Convert markdown to styled HTML for 8 destinations: Google Docs, Word, Slack, OneNote, Email, Plain Text, generic HTML, and raw HTML
  • 62 visual templates with light and dark themes (Swiss, Executive, Terminal, GitHub, and more)
  • Create, read, update documents in your Unmarkdown library, organized into folders
  • Publish documents to shareable public URLs at unmarkdown.com/d/your-slug
  • Track API usage and quota for the current billing period

Installation

Claude Desktop / Claude for macOS

Add this to your Claude Desktop configuration file:

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json Windows: %APPDATA%\Claude\claude_desktop_config.json

{

"mcpServers": { "unmarkdown": { "command": "npx", "args": ["-y", "@un-markdown/mcp-server"], "env": { "UNMARKDOWN_API_KEY": "um_your_api_key_here" } } } }

Cursor

Add to your Cursor MCP settings (.cursor/mcp.json):

{

"mcpServers": { "unmarkdown": { "command": "npx", "args": ["-y", "@un-markdown/mcp-server"], "env": { "UNMARKDOWN_API_KEY": "um_your_api_key_here" } } } }

VS Code

Add to your VS Code MCP settings (.vscode/mcp.json):

{

"servers": { "unmarkdown": { "command": "npx", "args": ["-y", "@un-markdown/mcp-server"], "env": { "UNMARKDOWN_API_KEY": "um_your_api_key_here" } } } }

Global Installation

If you prefer to install globally instead of using npx:

npm install -g @un-markdown/mcp-server

Then use unmarkdown-mcp as the command instead of npx:

{

"mcpServers": { "unmarkdown": { "command": "unmarkdown-mcp", "env": { "UNMARKDOWN_API_KEY": "um_your_api_key_here" } } } }

Configuration

Required
VariableDescription
UNMARKDOWN_API_KEYYour Unmarkdown API key (starts with um_). Get one from Settings > API in your Unmarkdown account.
Optional
VariableDescriptionDefault
UNMARKDOWN_API_URLCustom API base URLhttps://api.unmarkdown.com

Usage Examples

Example 1: Convert a meeting notes draft for Google Docs

"Take this markdown and convert it for Google Docs using the Executive template:

`markdown

# Q1 Planning Meeting

## Attendees

- Sarah Chen (Product)

- Mike Torres (Engineering)

- Lisa Park (Design)

## Action Items

- [ ] Finalize roadmap by Friday

- [ ] Schedule design review for new dashboard

- [ ] Update stakeholder presentation

`"

Claude will use the convert_markdown tool with destination: "google-docs" and template_id: "executive", returning styled HTML ready to paste into Google Docs with proper headings, fonts, and colors.

Example 2: Create a document in a folder

"Create a new document called 'API Changelog - February 2026' in my Release Notes folder with this content, then publish it."

Claude will:

  1. Call create_document with the title, markdown content, and folder: "Release Notes"
  2. Call publish_document with the returned document ID

The document is created directly in the specified folder, and you get back a live URL like https://unmarkdown.com/d/api-changelog-february-2026.

Example 3: Update and move a document

"Move the Q4 report to the Archive folder and update its title."

Claude will:

  1. Call list_documents to find the document
  2. Call update_document with the new title and folder: "Archive"
Example 4: Format markdown for Slack

"Convert this project update to Slack format so it looks good when I paste it in our team channel."

Claude uses convert_markdown with destination: "slack", producing output optimized for Slack's rendering (bold, lists, code blocks, emoji support).

Example 5: Check API usage

"How many API calls have I used this month?"

Claude calls get_usage and returns your current usage count, monthly limit, and billing period.

Tools Reference

ToolDescriptionRead-onlyIdempotent
convert_markdownConvert markdown to styled HTML for any of 8 destinationsYesYes
create_documentCreate a new document in your library (optionally in a folder)NoNo
list_documentsList saved documents with pagination (optionally filter by folder)YesYes
get_documentFetch a document by ID with full contentYesYes
update_documentModify a document's title, content, template, metadata, or folderNoYes
publish_documentPublish a document to a shareable public URLNoYes
get_usageCheck API quota for the current billing monthYesYes
Destinations

The convert_markdown tool supports these output formats:

DestinationDescription
google-docsOptimized for pasting into Google Docs
wordFormatted for Microsoft Word
slackSlack-compatible formatting
onenoteMicrosoft OneNote compatible
emailEmail client friendly HTML
plain-textPlain text with ASCII formatting
genericGeneral-purpose styled HTML
htmlRaw HTML output
Templates

Pass any template ID to convert_markdown, create_document, or update_document. Popular templates include:

TemplateCategory
swissFree (default)
monoFree
githubFree
terminalFree
executiveBusiness (Pro)
consultingBusiness (Pro)
startupBusiness (Pro)

Browse all 62 templates at unmarkdown.com/templates.

API Limits

PlanMonthly API CallsRate Limit
Free1,00010 req/sec
Pro ($8/mo annual)10,00030 req/sec

Overage: $1.00 per 1,000 additional calls (Pro only). Free plan has a hard limit.

Privacy

This MCP server sends your markdown content and document data to the Unmarkdown API (api.unmarkdown.com) for processing. No data is stored locally by the MCP server itself. All data handling is governed by the Unmarkdown Privacy Policy.

Specifically:

  • Markdown content sent via convert_markdown is processed and returned immediately. It is not stored on Unmarkdown servers.
  • Documents created via create_document or update_document are stored in your Unmarkdown account and can be deleted at any time.
  • API keys authenticate requests and are never logged or shared.

For the full privacy policy, visit unmarkdown.com/privacy.

Support

Development

# Clone the repo

git clone https://github.com/UnMarkdown/mcp-server.git cd mcp-server

Install dependencies

npm install

Build

npm run build

Run locally (requires API key)

UNMARKDOWN_API_KEY=um_your_key node build/index.js

See Also

  • [Chrome Extension](https://chromewebstore.google.com/detail/unmarkdown/cfpkknmdjnkeelcdndkgmlmagekofhoa) — Detect and convert markdown on any AI chat page (ChatGPT, Claude, Gemini)
  • [Web App](https://unmarkdown.com) — Full editor with 62 templates, publishing, AI actions, and analytics
  • [REST API](https://docs.unmarkdown.com/api/overview) — Programmatic access to all conversion and document features
  • [Smithery](https://smithery.ai/servers/unmarkdown/unmarkdown-mcp) — Install via the Smithery MCP registry
  • [npm](https://www.npmjs.com/package/@un-markdown/mcp-server) — @un-markdown/mcp-server on npm

License

MIT. See LICENSE for details.

Ask PopNx