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

InkRelay

by GauravBRversion 0.1.1i★ –iRuns on your computer
Registry nameio.github.GauravBR/inkrelay

Install

Overview

Description from the maker (original English)

Print PDFs, ZPL labels and ESC/POS receipts on your printers and follow print jobs via InkRelay

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: INKRELAY_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: INKRELAY_API_KEY, INKRELAY_FILE_ROOT

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": {
    "inkrelay": {
      "command": "npx",
      "args": [
        "-y",
        "@inkrelay/mcp"
      ],
      "env": {
        "INKRELAY_API_KEY": "your-value",
        "INKRELAY_FILE_ROOT": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add inkrelay --env INKRELAY_API_KEY=your-value --env INKRELAY_FILE_ROOT=your-value -- npx -y @inkrelay/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": {
    "inkrelay": {
      "command": "npx",
      "args": [
        "-y",
        "@inkrelay/mcp"
      ],
      "env": {
        "INKRELAY_API_KEY": "your-value",
        "INKRELAY_FILE_ROOT": "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": {
    "inkrelay": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@inkrelay/mcp"
      ],
      "env": {
        "INKRELAY_API_KEY": "your-value",
        "INKRELAY_FILE_ROOT": "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

  • INKRELAY_API_KEY secret required env
    InkRelay API key from app.inkrelay.app/api-keys. ir_test_ keys print only to free virtual printers.
  • INKRELAY_FILE_ROOT env
    Folder that filePath arguments must stay inside. Defaults to the working 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

  • ✓ Pass

    Maker matches the repo

    The registry name was verified with the GitHub account GauravBR, 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 32706 servers in this category
  • Published to the registry more recently than 66% of the other 32706 servers in this category
  • Basic checks equal to or better than 100% of the other 32706 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 InkRelay 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: INKRELAY_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 (0.1.1) reached the registry 20 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: Spec Driven Development, Remote Desktop Commander, Kanal Varna — drains, leaks & plumbing (Varna, BG)

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

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Runs on your computer★ 440MITUpdated 14 months ago
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Remote Desktop Commander

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Runs in the cloud★ 211Updated 2 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.

@inkrelay/mcp

MCP server for the InkRelay printing API. It lets an AI assistant list your printers and print PDFs, ZPL labels and ESC/POS receipts on printers attached to Windows, macOS and Linux computers.

Works with Claude Code, Claude Desktop, Cursor, VS Code (GitHub Copilot), OpenAI Codex, Windsurf and any client that speaks the Model Context Protocol over stdio.

Get a key

Sign in at app.inkrelay.app, open API keys and create one. Start with a test key (ir_test_...): it only reaches four virtual printers (Test A4 Laser, Test Letter Color, Test Receipt 80mm, Test Label 4x6), finishes jobs in about 3 seconds and costs nothing. A live key (ir_live_...) prints on paper.

Add it to your client

Claude Code

claude mcp add-json inkrelay '{"command":"npx","args":["-y","@inkrelay/mcp"],"env":{"INKRELAY_API_KEY":"ir_test_your_key"}}'

Claude Desktop (claude_desktop_config.json), Cursor (.cursor/mcp.json) and Windsurf (~/.codeium/windsurf/mcp_config.json)

{

"mcpServers": { "inkrelay": { "command": "npx", "args": ["-y", "@inkrelay/mcp"], "env": { "INKRELAY_API_KEY": "ir_test_your_key" } } } }

VS Code (.vscode/mcp.json)

{

"inputs": [{ "type": "promptString", "id": "inkrelay-key", "description": "InkRelay API key", "password": true }], "servers": { "inkrelay": { "type": "stdio", "command": "npx", "args": ["-y", "@inkrelay/mcp"], "env": { "INKRELAY_API_KEY": "${input:inkrelay-key}" } } } }

OpenAI Codex (~/.codex/config.toml)

[mcp_servers.inkrelay]

command = "npx" args = ["-y", "@inkrelay/mcp"] env = { INKRELAY_API_KEY = "ir_test_your_key" }

Docs search is a separate hosted server at https://docs.inkrelay.app/mcp (streamable HTTP), for example:

claude mcp add-json inkrelay-docs '{"type":"http","url":"https://docs.inkrelay.app/mcp"}'

Tools

ToolWhat it does
whoamiOrganization, plan, mode (test or live) and usage of the key
list_computersComputers running the agent and their state
list_printersPrinters with id, computer, online state, live switch and defaults
get_printerCapabilities: papers, trays, dpis, duplex, color, n-up
update_printerDisplay name, live switch, default options, custom paper sizes (admin scope)
print_pdfPrint a PDF from a URL, base64 or a local file; waits for the final state by default
print_rawPrint ZPL, ESC/POS or other printer language bytes from text, base64, a URL or a local file
get_print_jobA job with its state, message and full event history
wait_for_print_jobWait until a job is done, error, cancelled or expired
list_print_jobsRecent jobs, filtered by printer, computer or state
cancel_print_jobCancel a job that is still queued or sent
reprint_print_jobPrint an earlier job's stored file again
get_usageLive prints used and included this billing period
list_eventsThe event feed (the same events webhooks deliver)
list_webhooks, create_webhook, ping_webhookManage signed webhook endpoints (admin scope)

Things to try: *"Which printers do I have?"*, *"Print this invoice PDF on the A4 laser, two copies, duplex"*, *"Print a 4x6 ZPL test label that says Order 1042"*, *"Why did my last job fail?"*.

Configuration

VariableDefaultMeaning
INKRELAY_API_KEYnoneYour ir_test_ or ir_live_ key. The server starts without it and tells the model how to get one
INKRELAY_BASE_URLhttps://api.inkrelay.appOverride for a proxy
INKRELAY_FILE_ROOTthe working directoryFolder that filePath arguments must stay inside. File reads are off when this resolves to /, a drive root or the home folder (common for desktop clients), so set it there. Hidden files and folders are never read, and print_raw reads only printer files (.zpl, .epl, .prn, .pcl, .ps, .escpos, .raw, .bin, .txt)

print_pdf, print_raw and reprint_print_job send an Idempotency-Key on every job (pass your own with idempotencyKey), so a retried call never prints twice. Jobs carry source: "inkrelay-mcp". With a live key, jobs print on paper and count toward your plan, so keep tool approval on in your client.

Building printing into your own code

The MCP server is for operating printers from an assistant. To add printing to an application, use the SDKs, @inkrelay/sdk and inkrelay, and give your coding agent the inkrelay-printing skill.

Docs: https://docs.inkrelay.app/ai

Development

pnpm install

pnpm lint && pnpm typecheck && pnpm test && pnpm build

License

MIT

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