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

Sealed

by edwardyen724-gversion 0.1.0i★ –iRuns on your computer
Registry nameio.github.edwardyen724-g/sealed

Install

Overview

Description from the maker (original English)

Per-call paid skills for AI agents, run server-side: inputs in, outputs back. The body never ships.

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 on your computer
  • Transport: stdio
  • Category: Other
  • You need to fill in: SEALED_API_URL, SEALED_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: SEALED_API_URL, SEALED_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?

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": {
    "sealed": {
      "command": "npx",
      "args": [
        "-y",
        "sealed-mcp"
      ],
      "env": {
        "SEALED_API_URL": "your-value",
        "SEALED_API_KEY": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add sealed --env SEALED_API_URL=your-value --env SEALED_API_KEY=your-value -- npx -y sealed-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": {
    "sealed": {
      "command": "npx",
      "args": [
        "-y",
        "sealed-mcp"
      ],
      "env": {
        "SEALED_API_URL": "your-value",
        "SEALED_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": {
    "sealed": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "sealed-mcp"
      ],
      "env": {
        "SEALED_API_URL": "your-value",
        "SEALED_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

  • SEALED_API_URL required env
    Base URL of the Sealed API the MCP client proxies to.
  • SEALED_API_KEY secret required env
    Buyer API key; bearer token identifying the metered account.

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 9, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified with the GitHub account edwardyen724-g, 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 Otheri

  • More stars than 0% of the other 18689 servers in this category
  • Published to the registry more recently than 20% of the other 18689 servers in this category
  • Basic checks equal to or better than 100% of the other 18689 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 Sealed 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: SEALED_API_URL, SEALED_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 (0.1.0) reached the registry 3 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: Spec Driven Development, Remote Desktop Commander, Joe Hill, AI partner in Tennessee

Alternatives

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

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

Spec Driven Development

MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.

by formulahendryEarly↓ 66/wk★ 440Updated 14 months ago

Runs on your computer

Remote Desktop Commander

Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.

by desktop-commanderGrowing★ 211Updated 4 days ago

Runs in the cloud✓ desktopcommander.app

Joe Hill, AI partner in Tennessee

Check open times and book a free 15-minute fit call with Joe Hill, or ask Harvey about his work.

by joehill.netEarlyUpdated today

Runs in the cloud✓ joehill.net

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.

sealed-mcp

Thin MCP stdio client for Sealed — the skill marketplace where your skill runs sealed.

This package is a pure proxy. It connects your MCP-capable agent to a remote Sealed server and exposes two tools:

ToolWhat it doesAnnotations
list_skillsLists the public skill catalog (name, description, input schema, price per call)readOnlyHint: true
run_skillRuns a skill server-side and returns only its output + price/mode meta. Each call spends wallet balance at the listed per-call price.readOnlyHint: false, destructiveHint: false

Skill bodies never reach this process. Skills execute on Sealed's infrastructure; this client only carries your inputs up and the output back. There is no local execution mode — SEALED_API_URL is required.

Zero runtime dependencies. Plain Node 18+ (uses the global fetch).

npm naming: this package targets the unscoped name sealed-mcp and carries mcpName: io.github.edwardyen724-g/sealed for the official MCP registry. If that npm name is unavailable at publish time, the fallbacks are the scoped names @sealed/mcp or @sealedrun/mcp — update package.json, registry drafts, and install snippets together.

Install / configure

Claude Code
claude mcp add sealed --env SEALED_API_URL=https://sealed.run --env SEALED_API_KEY=sealed_sk_… -- npx -y sealed-mcp
Cursor / Windsurf

Add to ~/.cursor/mcp.json (Cursor) or ~/.codeium/windsurf/mcp_config.json (Windsurf):

{

"mcpServers": { "sealed": { "command": "npx", "args": ["-y", "sealed-mcp"], "env": { "SEALED_API_URL": "https://sealed.run", "SEALED_API_KEY": "sealed_sk_…" } } } }

Generic stdio MCP client

Spawn the binary and speak newline-delimited JSON-RPC 2.0 over stdin/stdout (initialize, tools/list, tools/call):

SEALED_API_URL=https://sealed.run SEALED_API_KEY=sealed_sk_… npx -y sealed-mcp

Environment variables

VariableRequiredPurpose
SEALED_API_URLYesBase URL of the Sealed API (e.g. https://sealed.run). The client exits with an error if unset.
SEALED_API_KEYNoYour Sealed API key (sealed_sk_…), sent as the bearer token. Without it, calls run unauthenticated and most servers will reject paid runs.

Errors you may see

Fixed, non-leaking error strings: unauthorized (bad/missing key), insufficient funds (top up your wallet), output blocked by leak gate, unknown skill: , cannot reach the Sealed API. Server error bodies are never echoed.

Links

  • Website: https://sealed.run
  • Get an API key: sign up at your Sealed server's /signup endpoint (production emails you a single-use sign-in link that shows the key once)
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