Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Description from the maker (original English)
Print PDFs, ZPL labels and ESC/POS receipts on your printers and follow print jobs via InkRelay
These three are never merged into one score: opinions, measurements and popularity are different things.
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
Pick the AI app you use, then copy the settings.
INKRELAY_API_KEY, INKRELAY_FILE_ROOTValues 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 …”.
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/mcpFill in the empty values before running it.
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.
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.
INKRELAY_FILE_ROOT envThese settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
Runs on your computer; the tool list appears in your AI app after you install it.
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
The registry name was verified with the GitHub account GauravBR, which owns the repo
We have not read this repo from GitHub yet
We have not read this repo from GitHub yet
This one runs on your computer; there is no internet endpoint
Runs on your computer and uses local settings instead
Runs on your computer; we can only read tool lists from internet endpoints
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
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.
You need to fill in: INKRELAY_API_KEY
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).
The GitHub repo last changed –, and the latest version (0.1.1) reached the registry 20 days ago.
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.
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Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
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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.
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.
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.
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"}'
| Tool | What it does |
|---|---|
whoami | Organization, plan, mode (test or live) and usage of the key |
list_computers | Computers running the agent and their state |
list_printers | Printers with id, computer, online state, live switch and defaults |
get_printer | Capabilities: papers, trays, dpis, duplex, color, n-up |
update_printer | Display name, live switch, default options, custom paper sizes (admin scope) |
print_pdf | Print a PDF from a URL, base64 or a local file; waits for the final state by default |
print_raw | Print ZPL, ESC/POS or other printer language bytes from text, base64, a URL or a local file |
get_print_job | A job with its state, message and full event history |
wait_for_print_job | Wait until a job is done, error, cancelled or expired |
list_print_jobs | Recent jobs, filtered by printer, computer or state |
cancel_print_job | Cancel a job that is still queued or sent |
reprint_print_job | Print an earlier job's stored file again |
get_usage | Live prints used and included this billing period |
list_events | The event feed (the same events webhooks deliver) |
list_webhooks, create_webhook, ping_webhook | Manage 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?"*.
| Variable | Default | Meaning |
|---|---|---|
INKRELAY_API_KEY | none | Your ir_test_ or ir_live_ key. The server starts without it and tells the model how to get one |
INKRELAY_BASE_URL | https://api.inkrelay.app | Override for a proxy |
INKRELAY_FILE_ROOT | the working directory | Folder 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.
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
pnpm install
pnpm lint && pnpm typecheck && pnpm test && pnpm build
MIT