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PopNx MCPMCP servers for people who use AI · explained in plain words

demo.st

by demo-stageversion 1.1.0i★ –iRuns in the cloud
Registry namest.demo/demost

Install

Overview

Description from the maker (original English)

Reserve a subdomain, upload .zip via MCP, get a link. Optional document API at api.demo.st.

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: Runs in the cloud
  • Transport: Streamable HTTP
  • Category: Docs, sheets & office work
  • You need to fill in: Authorization

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: Authorization

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

You need

Which app do you use?

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

This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.

Run this in your terminal

claude mcp add --transport http demost https://demo.st/mcp --header 'Authorization: your-value'

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": {
    "demost": {
      "url": "https://demo.st/mcp",
      "headers": {
        "Authorization": "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": {
    "demost": {
      "type": "http",
      "url": "https://demo.st/mcp",
      "headers": {
        "Authorization": "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 address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.

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

Values you fill in

  • Authorization secret required HTTP header
    Bearer token from https://demo.st (sign in → MCP page → copy token, or GET /api/mcp/token). Required for hosting and document API tools.

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 7, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified against the domain demo.st (the registry checks domain ownership)

  • … 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 3533 servers in this category
  • Published to the registry more recently than 17% of the other 3533 servers in this category
  • Basic checks equal to or better than 100% of the other 3533 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 demo.st 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: Authorization

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.1.0) reached the registry 4 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
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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 7 days ago
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Excel automation for AI - Sheets, Power Query, DAX, VBA, Tables, Ranges and more. Windows only.

Runs on your computer★ 847MITUpdated 4 days ago
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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.

demo.st

Demo stage for vibe-coded prototypes. Reserve a subdomain, publish from your agent via MCP, get a clean link like yourproject.demo.st. Static hosting only (Nginx; no PHP, no databases).

Cursor plugin

This repo is a Cursor plugin. Install it from the Cursor Marketplace (after it’s published) or add the repo in Cursor to use the demo.st MCP server.

Getting your MCP token

Authenticated tools (reserve subdomain, upload zip, clear, release) require a Bearer token:

  1. Sign in at https://demo.st (create an account if needed).
  2. Open https://demo.st/api/mcp/token or the MCP page and copy the token.
  3. Set it as an environment variable:
  • Windows (PowerShell): $env:DEMO_ST_MCP_TOKEN = "your-token-here"
  • macOS / Linux: export DEMO_ST_MCP_TOKEN="your-token-here"
  • Or add to your shell profile (.bashrc, .zshrc) so Cursor picks it up.
  1. Restart Cursor (or reload the window). The Agent can then use demo.st tools.
MCP tools
  • check_subdomain_availability — Check if a subdomain is available (no token).
  • reserve_subdomain — Reserve a subdomain (token required).
  • upload_site — Upload a .zip as site content; use zip_base64 (easiest for agents) or file_url for a public zip URL (token required).
  • clear_site — Remove deployed content; subdomain stays reserved (token required).
  • release_subdomain — Release your subdomain (token required).

License

See LICENSE.

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