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

Papex

by papex.orgversion 0.17.0i★ –iRuns on your computer
Registry nameorg.papex/mcp

Install

Overview

Description from the maker (original English)

Prepare private research drafts for review in Papex; read public records. Agents: papex.org/auth.md

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: Search & AI memory
  • You need to fill in: PAPEX_DELEGATE_PRIVATE_KEY

Install

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

Before you install

  • Basic checks: 0 of 1 passed
  • Runs on your computer with your user’s permissions (files, network, apps).
  • You fill in yourself: PAPEX_DELEGATE_PRIVATE_KEY, PAPEX_RESEARCH_DRAFT_GRANT_ID, PAPEX_RESEARCH_DRAFT_ASSIST_GRANT_ID, PAPEX_RECORD_ARTIFACT_GRANT_ID, PAPEX_ARTIFACT_FILE_CUSTODY_GRANT_ID, PAPEX_SEAL_GRANT_ID, PAPEX_CHECKPOINT_GRANT_ID

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": {
    "papex": {
      "command": "npx",
      "args": [
        "-y",
        "@papexlabs/mcp"
      ],
      "env": {
        "PAPEX_DELEGATE_PRIVATE_KEY": "your-value",
        "PAPEX_RESEARCH_DRAFT_GRANT_ID": "your-value",
        "PAPEX_RESEARCH_DRAFT_ASSIST_GRANT_ID": "your-value",
        "PAPEX_RECORD_ARTIFACT_GRANT_ID": "your-value",
        "PAPEX_ARTIFACT_FILE_CUSTODY_GRANT_ID": "your-value",
        "PAPEX_SEAL_GRANT_ID": "your-value",
        "PAPEX_CHECKPOINT_GRANT_ID": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add papex --env PAPEX_DELEGATE_PRIVATE_KEY=your-value --env PAPEX_RESEARCH_DRAFT_GRANT_ID=your-value --env PAPEX_RESEARCH_DRAFT_ASSIST_GRANT_ID=your-value --env PAPEX_RECORD_ARTIFACT_GRANT_ID=your-value --env PAPEX_ARTIFACT_FILE_CUSTODY_GRANT_ID=your-value --env PAPEX_SEAL_GRANT_ID=your-value --env PAPEX_CHECKPOINT_GRANT_ID=your-value -- npx -y @papexlabs/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": {
    "papex": {
      "command": "npx",
      "args": [
        "-y",
        "@papexlabs/mcp"
      ],
      "env": {
        "PAPEX_DELEGATE_PRIVATE_KEY": "your-value",
        "PAPEX_RESEARCH_DRAFT_GRANT_ID": "your-value",
        "PAPEX_RESEARCH_DRAFT_ASSIST_GRANT_ID": "your-value",
        "PAPEX_RECORD_ARTIFACT_GRANT_ID": "your-value",
        "PAPEX_ARTIFACT_FILE_CUSTODY_GRANT_ID": "your-value",
        "PAPEX_SEAL_GRANT_ID": "your-value",
        "PAPEX_CHECKPOINT_GRANT_ID": "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": {
    "papex": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@papexlabs/mcp"
      ],
      "env": {
        "PAPEX_DELEGATE_PRIVATE_KEY": "your-value",
        "PAPEX_RESEARCH_DRAFT_GRANT_ID": "your-value",
        "PAPEX_RESEARCH_DRAFT_ASSIST_GRANT_ID": "your-value",
        "PAPEX_RECORD_ARTIFACT_GRANT_ID": "your-value",
        "PAPEX_ARTIFACT_FILE_CUSTODY_GRANT_ID": "your-value",
        "PAPEX_SEAL_GRANT_ID": "your-value",
        "PAPEX_CHECKPOINT_GRANT_ID": "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

  • PAPEX_DELEGATE_PRIVATE_KEY secret env
    Delegate key from Papex → Workspace → Connections (shown once). Needed for any grant. Stays on this computer.
  • PAPEX_RESEARCH_DRAFT_GRANT_ID env
    Grant id that allows preparing private Hypothesis, Discovery and Publication drafts.
  • PAPEX_RESEARCH_DRAFT_ASSIST_GRANT_ID env
    Grant id that allows reading selected private-draft context and proposing changes.
  • PAPEX_RECORD_ARTIFACT_GRANT_ID env
    Grant id that allows proposing supporting artifacts into a private record version.
  • PAPEX_ARTIFACT_FILE_CUSTODY_GRANT_ID env
    Grant id that allows uploading an explicitly selected file set into private quarantine.
  • PAPEX_SEAL_GRANT_ID env
    Grant id that allows DELEGATE seals of selected local files or a draft fingerprint.
  • PAPEX_CHECKPOINT_GRANT_ID env
    Grant id that allows DELEGATE content checkpoints of a local directory.

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 7, 2026

  • ! Caution

    Maker matches the repo

    The registry lists no source repo, so we cannot match the publisher (papex.org) to the code

  • … 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 Search & AI memoryi

  • More stars than 0% of the other 7251 servers in this category
  • Published to the registry more recently than 82% of the other 7251 servers in this category
  • Basic checks equal to or better than 33% of the other 7251 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 Papex safe?

It passed 0 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: PAPEX_DELEGATE_PRIVATE_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 (0.17.0) reached the registry 8 days 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: Context7, Codebase Memory, Exa

Alternatives

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

Context7

by upstash

Feeds AI the latest docs for libraries and frameworks before it answers, so code it writes does not use outdated, removed functions.

Computer or cloud★ 64,224MITUpdated today
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Codebase Memory

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Codebase knowledge graph for AI agents — 162 languages, sub-ms queries, 99% fewer tokens.

Runs on your computer★ 48,148MITUpdated 20 days ago
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Exa

by exa-labs

Connect AI agents to Exa for web search, content fetching, and multi-step research.

Runs in the cloud★ 5,213MITUpdated last month
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README from the maker

No README found in the repo

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