Check

Name: Check
Author: getstub

by getstubversion 0.1.0i★ 0iRuns on your computer

Registry namedev.getstub/check

How to install

What it does

Verify what an AI agent did for someone, and what commercial influence the operator disclosed.

Connects Runs on your computer
Account or key No key needed
Category Other

Install

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

Passed 3/3 checks · Runs on your computer · ✓ Commands checked Nov 14, 2026

First: which AI do you use?

ClaudeWeb · app · phoneChatGPTWebClaude CodeTerminalCursorCode editorVS CodeCode editorOtherOther apps

Pick your app and the steps appear below.

Works with Claude, with some setup first

Install Node.js on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone

Let AI install it

Copy this message into a Claude chat. The AI checks your computer, tells you which file it will change, and waits for your OK every time.

Please install the MCP server Check for Claude on this computer, in this order: 1) Check Node.js with node -v. If it is missing, tell me to install it from https://nodejs.org/en/download; do not install it yourself. 2) Use only this config (already checked by PopNx MCP): { "mcpServers": { "check": { "command": "npx", "args": [ "-y", "@getstub/mcp-check" ] } } } 3) Tell me the full path of the file you will change, or the command you will run, and wait for my OK. 4) No key is needed. 5) Do what we agreed, then check that the Check tools really show up.

This message has no key in it. If a key is needed, the AI will ask you to paste it yourself into the file or the app’s field.

1
Install Node.js (if you don’t have it)
Already installed? Check first · Open Terminal, type this command and press Enter
node -v
- A version number such as v26.13.1 = installed, skip this step
- "command not found" (on Windows: "is not recognized") = not installed yet, or installed but Terminal needs to be closed and reopened
How to open Terminal
Mac: press ⌘ + Space, type Terminal, press Enter
Windows: open Start, type Windows PowerShell, then Open
Not installed: Open the official download page, pick the LTS version and the click-through installer: .pkg on Mac · .msi on Windows. Double-click and follow it to the end. No curl command needed
Open the Node.js download page ↗
When it’s done, close Terminal, open it again and run the same command. You should see a version number: node -v
Install once; it works for everything that needs Node.js
Done
Open the Claude desktop app’s settings file
SettingsDeveloperEdit Config
Done

Paste these settings and save the file

{
  "mcpServers": {
    "check": {
      "command": "npx",
      "args": [
        "-y",
        "@getstub/mcp-check"
      ]
    }
  }
}

Done

Quit Claude and open it again
Done
Try it
Use Check and tell me what you can do for me, then show me one thing
✓ If Claude says it is using Check or shows a Check tool in the answer, you are connected

1 optional setting(s) (works without them)

The command above works without these. Add them only if you want to change something, following the maker’s description.

STUB_REGISTRY Registry host to resolve receipts against. Defaults to https://api.getstub.dev

Descriptions are as written by the maker.

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

ChatGPT cannot connect Check yet

Check runs on your computer, but ChatGPT can only connect servers that run on the web

What you can do instead

A · Use an app that can connect Check

Steps for Claude →Install Node.js on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone
Steps for Claude Code →Install Node.js on your computer first (one time)
Steps for Cursor →Install Node.js on your computer first (one time)
Steps for VS Code →Install Node.js on your computer first (one time)

B · Others in Other that work with ChatGPT

Picked from the most used in the same category, only ones that connect by address with no key

Hostinger✓ ChatGPT
World Monitor✓ ChatGPT
Svelte MCP✓ ChatGPT

Works with Claude Code, with some setup first

Install Node.js on your computer first (one time)

Let AI install it

Copy this message into a Claude Code chat. The AI checks your computer, tells you which file it will change, and waits for your OK every time.

Please install the MCP server Check for Claude Code on this computer, in this order: 1) Check Node.js with node -v. If it is missing, tell me to install it from https://nodejs.org/en/download; do not install it yourself. 2) Use only this config (already checked by PopNx MCP): claude mcp add --scope user check -- npx -y @getstub/mcp-check 3) Tell me the full path of the file you will change, or the command you will run, and wait for my OK. 4) No key is needed. 5) Do what we agreed, then check that the Check tools really show up.

This message has no key in it. If a key is needed, the AI will ask you to paste it yourself into the file or the app’s field.

1
Install Node.js (if you don’t have it)
Already installed? Check first · Open Terminal, type this command and press Enter
node -v
- A version number such as v26.13.1 = installed, skip this step
- "command not found" (on Windows: "is not recognized") = not installed yet, or installed but Terminal needs to be closed and reopened
How to open Terminal
Mac: press ⌘ + Space, type Terminal, press Enter
Windows: open Start, type Windows PowerShell, then Open
Not installed: Open the official download page, pick the LTS version and the click-through installer: .pkg on Mac · .msi on Windows. Double-click and follow it to the end. No curl command needed
Open the Node.js download page ↗
When it’s done, close Terminal, open it again and run the same command. You should see a version number: node -v
Install once; it works for everything that needs Node.js
Done
Open Terminal
Mac: press Command+Space and type Terminal · Windows: open PowerShell
Done

Paste this command and press Enter

claude mcp add --scope user check -- npx -y @getstub/mcp-check

Done

Type /mcp in Claude Code
You should see Check listed as connected
Done
Try it
Use Check and tell me what you can do for me, then show me one thing
✓ If Claude Code says it is using Check or shows a Check tool in the answer, you are connected

1 optional setting(s) (works without them)

The command above works without these. Add them only if you want to change something, following the maker’s description.

STUB_REGISTRY Registry host to resolve receipts against. Defaults to https://api.getstub.dev

Descriptions are as written by the maker.

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Cursor, with some setup first

Install Node.js on your computer first (one time)

Let AI install it

Copy this message into a Cursor chat. The AI checks your computer, tells you which file it will change, and waits for your OK every time.

Please install the MCP server Check for Cursor on this computer, in this order: 1) Check Node.js with node -v. If it is missing, tell me to install it from https://nodejs.org/en/download; do not install it yourself. 2) Use only this config (already checked by PopNx MCP): { "mcpServers": { "check": { "command": "npx", "args": [ "-y", "@getstub/mcp-check" ] } } } 3) Tell me the full path of the file you will change, or the command you will run, and wait for my OK. 4) No key is needed. 5) Do what we agreed, then check that the Check tools really show up.

This message has no key in it. If a key is needed, the AI will ask you to paste it yourself into the file or the app’s field.

1
Install Node.js (if you don’t have it)
Already installed? Check first · Open Terminal, type this command and press Enter
node -v
- A version number such as v26.13.1 = installed, skip this step
- "command not found" (on Windows: "is not recognized") = not installed yet, or installed but Terminal needs to be closed and reopened
How to open Terminal
Mac: press ⌘ + Space, type Terminal, press Enter
Windows: open Start, type Windows PowerShell, then Open
Not installed: Open the official download page, pick the LTS version and the click-through installer: .pkg on Mac · .msi on Windows. Double-click and follow it to the end. No curl command needed
Open the Node.js download page ↗
When it’s done, close Terminal, open it again and run the same command. You should see a version number: node -v
Install once; it works for everything that needs Node.js
Done
Click this button to open Cursor
Open in Cursor
Cursor asks you to confirm; click Install
Done
Open the AI chat in Cursor in Agent mode
Done
Try it
Use Check and tell me what you can do for me, then show me one thing
✓ If Cursor says it is using Check or shows a Check tool in the answer, you are connected

1 optional setting(s) (works without them)

The command above works without these. Add them only if you want to change something, following the maker’s description.

STUB_REGISTRY Registry host to resolve receipts against. Defaults to https://api.getstub.dev

Descriptions are as written by the maker.

Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with VS Code, with some setup first

Install Node.js on your computer first (one time)

Let AI install it

Copy this message into a VS Code chat. The AI checks your computer, tells you which file it will change, and waits for your OK every time.

Please install the MCP server Check for VS Code on this computer, in this order: 1) Check Node.js with node -v. If it is missing, tell me to install it from https://nodejs.org/en/download; do not install it yourself. 2) Use only this config (already checked by PopNx MCP): { "servers": { "check": { "type": "stdio", "command": "npx", "args": [ "-y", "@getstub/mcp-check" ] } } } 3) Tell me the full path of the file you will change, or the command you will run, and wait for my OK. 4) No key is needed. 5) Do what we agreed, then check that the Check tools really show up.

This message has no key in it. If a key is needed, the AI will ask you to paste it yourself into the file or the app’s field.

1
Install Node.js (if you don’t have it)
Already installed? Check first · Open Terminal, type this command and press Enter
node -v
- A version number such as v26.13.1 = installed, skip this step
- "command not found" (on Windows: "is not recognized") = not installed yet, or installed but Terminal needs to be closed and reopened
How to open Terminal
Mac: press ⌘ + Space, type Terminal, press Enter
Windows: open Start, type Windows PowerShell, then Open
Not installed: Open the official download page, pick the LTS version and the click-through installer: .pkg on Mac · .msi on Windows. Double-click and follow it to the end. No curl command needed
Open the Node.js download page ↗
When it’s done, close Terminal, open it again and run the same command. You should see a version number: node -v
Install once; it works for everything that needs Node.js
Done
Click this button to open VS Code
Open in VS Code
VS Code asks you to confirm; click Install
Done
Open the AI chat in VS Code in Agent mode
Done
Try it
Use Check and tell me what you can do for me, then show me one thing
✓ If VS Code says it is using Check or shows a Check tool in the answer, you are connected

1 optional setting(s) (works without them)

The command above works without these. Add them only if you want to change something, following the maker’s description.

STUB_REGISTRY Registry host to resolve receipts against. Defaults to https://api.getstub.dev

Descriptions are as written by the maker.

Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.

See every app that uses MCP →

JSON settings are under “For developers” below

Stuck? Ask people who use Check💬 Discussion →

For developers: Terminal commands and JSON settings

Installed on your computer

Claude Code

claude mcp add --scope user check -- npx -y @getstub/mcp-check

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "check": {
      "command": "npx",
      "args": [
        "-y",
        "@getstub/mcp-check"
      ]
    }
  }
}

Cursor (~/.cursor/mcp.json)

{
  "mcpServers": {
    "check": {
      "command": "npx",
      "args": [
        "-y",
        "@getstub/mcp-check"
      ]
    }
  }
}

VS Code (mcp.json)

{
  "servers": {
    "check": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@getstub/mcp-check"
      ]
    }
  }
}

Values you fill in

STUB_REGISTRY env
Registry host to resolve receipts against. Defaults to https://api.getstub.dev

Descriptions are as written by the maker.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

At a glance

GitHub stars i: 0
Downloads per weeki: 59/wk
Verified domain: ✓ getstub.dev
Licence i: MIT
Connection: Runs on your computer
Transport: stdio
Latest versioni: 0.1.0
Categoryi: Other
Published to registryi: Sep 15, 2026
Code last changedi: Sep 20, 2026
Maker: getstub
Packages: npm: @getstub/mcp-check
Repo: getstub/recipes
Registry status: Active

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Run on your computer in

Claude Goose LM Studio Msty Studio Cherry Studio Cursor VS Code + GitHub Copilot Visual Studio Windsurf (Devin Desktop)Zed Kiro Cline Continue JetBrains AI Assistant Claude Code Codex CLI Gemini CLI OpenCode nodecode Warp LibreChat Raycast

All apps, with pros and cons →

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 15, 2026

✓ Pass
Maker matches the repo
The registry name was verified against the domain getstub.dev (the registry checks domain ownership)
✓ Pass
Still maintained
Code last changed 2 months ago
✓ Pass
Has a licence
Uses MIT
– 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

Published vulnerabilities (OSV.dev)

Not checked yet

What we check → · JSON

Makers: ask for a re-check or report wrong info

Discussion

Ask, share a tip or report that it does not work. Sorted by what people marked helpful.

No posts yet. Be the first to ask or share.

Posts here are written by users, not the PopNx team.

User reviews

No reviews yet

Compared with others in Otheri

More stars than 0% of the other 19928 servers in this category
Published to the registry more recently than 41% of the other 19928 servers in this category
Basic checks equal to or better than 100% of the other 19928 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 Check safe?

It passed 3 of 3 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?

The registry does not list a required key, though some servers ask you to sign in on first use.

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 2 months ago, and the latest version (0.1.0) reached the registry 2 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: World Monitor, openstatus, Oh My Posh Validator, Strata, Jitsu

Similar alternatives

Same category, other makers, commands already checked. Official ones first, then by stars.

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

World Monitor

Real-time global intelligence on conflict, markets, energy, trade, shipping and cyber. 97 tools.

by koala73Widely used★ 90.7KUpdated yesterday

Runs in the cloud✓ service owner · worldmonitor.app

How to connect

openstatus

Manage monitors, status pages, incidents and maintenances in your openstatus workspace.

by openstatusHQWidely used★ 9.3KUpdated 2 months ago

Runs in the cloud✓ service owner · openstatus.dev

How to connect

Oh My Posh Validator

Validate oh-my-posh configurations and segment snippets against the official schema.

by JanDeDobbeleerWidely used★ 23.8K Stars for the whole repoUpdated 26 days ago

Runs in the cloud✓ service owner · ohmyposh.dev

How to connect

Strata

MCP server for progressive tool usage at any scale (see https://klavis.ai)

by Klavis-AIGrowing★ 5.8KUpdated 14 months ago

Runs in the cloudRepo archived✓ klavis.ai

How to connect

Jitsu

Manage Jitsu data pipelines: destinations, streams, connections, functions, live events.

by jitsucomWidely used★ 5.1KUpdated 4 months ago

Runs in the cloud✓ service owner · jitsu.com

How to connect

World Monitor — Runs in the cloud, nothing to install · No key needed
openstatus — Runs in the cloud, nothing to install · No key needed
Oh My Posh Validator — Runs in the cloud, nothing to install · No key needed
Strata — Runs in the cloud, nothing to install · No key needed
Jitsu — Runs in the cloud, nothing to install · No key needed

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.

Stub recipes

Working reference integrations for Stub, the allegiance receipt registry for AI agents.

Each recipe is a runnable agent with Stub wired in at the line where the ranking picks a winner. Clone one, run it, read the receipt it produces.

Every recipe here is a reference and a simulation. No real merchants, no real money, no real users. Nobody is running these in production, and each README says so. The point is to show exactly where a receipt belongs in code you recognise.

The recipes

Recipe	What it shows	Language
`tool-loop`	The primitive every framework wraps. A model, two tools, a loop.	JavaScript
`acp-commerce`	Allegiance lives upstream of checkout, in the ranking.	JavaScript
`mcp`	A public check server any agent can add, plus the operator issuing pattern.	JavaScript
`langchain-python`	The same integration inside a LangChain agent.	Python
`vercel-ai-sdk`	The biggest agent surface in JavaScript.	JavaScript
`insurance-advice`	The primitive outside commerce, with real stakes.	Python

Every recipe runs against the live registry and issues real receipts, under an operator id you choose. The free tier is 1,000 stubs a month, so trying all six costs nothing. There is no offline mode and no mock registry: the only way to issue a stub is to issue one.

The badge above

These recipes are exercised against the live registry every day, and the badge is drawn from the receipts that run produces. It is not a build status: it says the reference agents ranked their catalogues, disclosed what influenced the result, and issued signed records anyone can open. Click it to read them.

If it ever goes quiet, the recipes stopped working and this repo is telling you so before you clone it.

Start here

If you are new to this, read tool-loop first. It is the smallest one and it carries the lesson the others repeat: the model does nothing wrong, the ranking decided.

cd tool-loop

npm install export STUB_OPERATOR_ID=op_yourname_toolloop npm run demo

Pick an operator id that is yours. The first run registers it and saves your keypair to .stub-keys.json, which is gitignored. Every run after that uses the same identity.

The demo prints the ranking your code produced, with the reason beside each item, and then a receipt link anyone can open.

When you are ready to deploy

The recipes generate a fresh keypair each run, which is right for reading and wrong for production. PRODUCTION.md covers what changes: persisting your identity, where the receipt belongs, what never goes in the free text, and the mistakes we made taking our own agent live.

What a stub is

When your agent acts for someone, it issues a small signed record: who asked, what was done, what money moved, and what commercial influence applied. The person served checks it at a neutral registry, not on your servers and not on ours.

Here is a live one before you install anything:

https://api.getstub.dev/check/72b4baee1719ec34acc5df5c514a12fd2e19b9a6776de4b45706988f765c77d8

The integration, in full

import { Stub, influenced } from '@getstub/agent';

const stub = new Stub({ operator: 'Your Agent', declared: { paid_by: 'the user, subscription', conflicts: ['commission'], }, });

// at the line where your ranker picks a winner: const inf = []; if (pick.paid_placement) inf.push(influenced.placement(pick.seller)); if (pick.commission_pct) inf.push(influenced.commission(pick.commission_pct + '%'));

const receipt = await stub.issue({ principal: user.id, // hashed on your side, never sent raw agent: 'your-agent', requested: query, done: booked ${pick.name}, value_moved: { amount: pick.price, currency: 'USD' }, not_disclosed: inf, // an empty array is signed proof none applied });

Python is the same shape:

from getstub import Stub, influenced

Two things that keep coming up

Nobody hand writes disclosures. Your ranking code already knows when a commission or a placement fee shaped a result, because it applied it. The receipt reads the same flags at the same line. It scales the way your ranking scales.

An empty disclosure is not nothing. It is a signature saying conflicts exist in your business and none of them touched this action. That is worth more than silence, and it is why honest operators have something to gain here.

Install

npm install @getstub/agent

pip install getstub

Both clients sign over the same canonical form, verified rather than assumed: the Python test suite signs a stub and has the registry code verify it.

Free tier

1,000 stubs a month. Checking is free forever, because charging the person being served to verify would defeat the point.

Check

What it does

Install

Install Node.js (if you don’t have it)

Open the Claude desktop app’s settings file

Paste these settings and save the file

Quit Claude and open it again

Try it

What you can do instead

Install Node.js (if you don’t have it)

Open Terminal

Paste this command and press Enter

Type /mcp in Claude Code

Try it

Install Node.js (if you don’t have it)

Click this button to open Cursor

Open the AI chat in Cursor in Agent mode

Try it

Install Node.js (if you don’t have it)

Click this button to open VS Code

Open the AI chat in VS Code in Agent mode

Try it

Installed on your computer

Values you fill in

At a glance

Which apps can use it

Related guides

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Published vulnerabilities (OSV.dev)

Discussion

User reviews

Compared with others in Otheri

Common questions

Similar alternatives

World Monitor

openstatus

Oh My Posh Validator

Strata

Jitsu

README from the maker

Stub recipes

The recipes

The badge above

Start here

When you are ready to deploy

What a stub is

The integration, in full

Two things that keep coming up

Install

Free tier

Links