Supplement Check

Name: Supplement Check
Author: GoodTurnStudio

by GoodTurnStudioversion 1.2.0i★ 0iRuns in the cloud

Registry nameio.github.GoodTurnStudio/supplementcheck

How to install

What it does

Supplement labels, doses against official upper limits, and a whole-stack check for overlaps.

Connects Runs in the cloud
Account or key No key needed
Category Other

Install

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

Passed 5/5 checks · What you ask goes through the maker’s server (goodturn-mcp.pages.dev)

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 · about 2 min

No key, nothing to install · Set it up once on claude.ai or the desktop app, then use it in chat · free accounts can add 1 · on Team/Enterprise an Owner adds it

Open Claude’s Connectors page
CustomizeConnectors
Done
Click “+ Add” → “Add custom connector” and fill in these 2 fields
Copy each value into the field with the same name in Claude, then click Continue
Name · NameSupplement Check
Remote MCP server URL · Addresshttps://goodturn-mcp.pages.dev/supplementcheck/mcp
Leave Authentication as Claude detected it, then click Add
Done
Turn it on in a chat
+ConnectorsSupplement Check
Done
Try it
Use Supplement Check and tell me what you can do for me, then show me one thing
✓ If Claude says it is using Supplement Check or shows a Supplement Check tool in the answer, you are connected

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

Works with ChatGPT on business plans only

ChatGPT Business, Enterprise or Edu on the web, added by a workspace admin or owner · On Free, Plus or Pro: your ChatGPT plan cannot connect MCP yet

Open ChatGPT’s add-MCP page on the web
Plugins+Add custom MCP server
Done
Fill in the name and address
Enter a name, paste the address under Connection, tick the risk warning and click Create as a plugin
Name · NameSupplement Check
Connection · Addresshttps://goodturn-mcp.pages.dev/supplementcheck/mcp
Done
Pick Supplement Check in a chat
Start a new chat and pick Supplement Check from your plugins before typing
Done
Try it
Use Supplement Check and tell me what you can do for me, then show me one thing
✓ If ChatGPT says it is using Supplement Check or shows a Supplement Check tool in the answer, you are connected

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

Works with Claude Code · about 2 min

No key, nothing to install

Open Terminal
Mac: press Command+Space and type Terminal · Windows: open PowerShell
Done

Paste this command and press Enter

claude mcp add --transport http --scope user supplementcheck https://goodturn-mcp.pages.dev/supplementcheck/mcp

Done

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

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

Works with Cursor · about 2 min

No key, nothing to install

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 Supplement Check and tell me what you can do for me, then show me one thing
✓ If Cursor says it is using Supplement Check or shows a Supplement Check tool in the answer, you are connected

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

Works with VS Code · about 2 min

No key, nothing to install

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 Supplement Check and tell me what you can do for me, then show me one thing
✓ If VS Code says it is using Supplement Check or shows a Supplement Check tool in the answer, you are connected

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 →

Address for apps that connect over the web

Addresshttps://goodturn-mcp.pages.dev/supplementcheck/mcp

JSON settings are under “For developers” below

Stuck? Ask people who use Supplement Check💬 Discussion →

For developers: Terminal commands and JSON settings

Over the web

Claude Code

claude mcp add --transport http --scope user supplementcheck https://goodturn-mcp.pages.dev/supplementcheck/mcp

Cursor (~/.cursor/mcp.json)

{
  "mcpServers": {
    "supplementcheck": {
      "url": "https://goodturn-mcp.pages.dev/supplementcheck/mcp"
    }
  }
}

VS Code (mcp.json)

{
  "servers": {
    "supplementcheck": {
      "type": "http",
      "url": "https://goodturn-mcp.pages.dev/supplementcheck/mcp"
    }
  }
}

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: Not on npm/PyPI
Licence i: MIT
Connection: Runs in the cloud
Transport: streamable-http
Latest versioni: 1.2.0
Categoryi: Other
Published to registryi: Sep 28, 2026
Code last changedi: Oct 4, 2026
Maker: GoodTurnStudio
Repo: GoodTurnStudio/goodturn-mcp
Website: goodturn-mcp.pages.dev
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.

Connect over the internet in

Claude ChatGPT 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 Open WebUI Raycast

All apps, with pros and cons →

What it can do

Tool names and descriptions exactly as the server reported them on Nov 8, 2026. The maker wrote them, not us; we show them as plain text.

get_supplement
A supplement's label: amounts per serving, upper limit check, halal status and a buy link. For requests like "what's in Nature Made vitamin D3?", "is Centrum halal?", "how much melatonin is in OLLY Sleep?" or "is this supplement halal?" with a barcode. Give q (brand and product n
get_nutrient
What a vitamin, mineral or popular supplement does, how much adults need or studies used, limits, cautions and food sources. For requests like "what does magnesium glycinate do?", "what is vitamin K for?", "how much vitamin D do I need?", "is ashwagandha safe?" or "what is creati
check_dose
Compare an amount of a vitamin or mineral with the adult RDA and upper limit. For requests like "is 5000 IU of vitamin D too much?", "is 500 mg of magnesium glycinate safe?", "is 10 mg of melatonin a lot?" or "is 300 mg of caffeine too much?". Handles IU, mcg, mg and g, including
check_stack
Add up everything someone takes and check the daily totals against adult upper limits. For requests like "I take Centrum, vitamin D 5000 IU and zinc 50 mg, is that too much?" or "is it OK to take OLLY Sleep with extra melatonin?". Takes up to 6 items separated by semicolons: prod

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 13, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account GoodTurnStudio, which owns the repo
✓ Pass
Still maintained
Code last changed 40 days ago
✓ Pass
Has a licence
Uses MIT
✓ Pass
Endpoint responds
Responded in 11 ms (HTTP 200)
– Not applicable
Sign-in with OAuth
No sign-in needed
✓ Pass
No hidden instructions in tool descriptions
Read 4 tool descriptions and found no hidden instructions to the AI

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 19416 servers in this category
Published to the registry more recently than 50% of the other 19416 servers in this category
Basic checks equal to or better than 100% of the other 19416 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 Supplement Check safe?

It passed 5 of 5 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 in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed 40 days ago, and the latest version (1.2.0) 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. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT Business and above.

What can I use instead?

In the same category: World Monitor, Claude Flow, Windmill

Others in the same category

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

World Monitor

Real-time global intelligence on conflict, markets, energy, trade, shipping and cyber. 104 tools.

by koala73Widely used★ 90.5KUpdated yesterday

Runs in the cloud✓ service owner · worldmonitor.app

Install

Claude Flow

AI orchestration with hive-mind swarms, neural networks, and 87 MCP tools for enterprise dev.

by ruvnetWidely used↓ 13.5K/wk★ 81.5KUpdated 14 months ago

Runs on your computer

Install

Windmill

Run Windmill scripts and flows and manage jobs, schedules, resources and variables.

by windmill-labsWidely used★ 18.6KUpdated yesterday

Runs in the cloud

Install

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.

goodturn-mcp

Remote MCP servers for 25 free, read-only everyday helpers by Good Turn Studio: money, health, jobs, travel, shopping, halal checks, football and scripture reading. One Cloudflare Worker turns each product's public OpenAPI spec into an MCP server, so any assistant that speaks MCP (Claude, ChatGPT, Alexa+, Cursor, VS Code and others) can use them.

One server per product: https://goodturn-mcp.pages.dev/ /mcp
All products in one: https://goodturn-mcp.pages.dev/all/mcp (tool names start with the product slug)
Streamable HTTP, stateless JSON, MCP 2025-11-25 (and 2025-06-18, 2025-03-26), no sign-in
Every tool is read-only, with a title and annotations (readOnlyHint: true, destructiveHint: false, idempotentHint: true)
Nothing about the user is stored. Privacy: https://goodturn-mcp.pages.dev/privacy

Products

Product	Slug	What it does
Mizan	`mizan`	Shariah screening of US stocks under four standards, halal alternatives, purification, zakat
Halal or Not	`halalornot`	Halal checks for food, ingredients, medicines, stocks, funds and crypto
Fare Deals	`faredeals`	Cheap flights from any city, and the cheapest days to fly
Cheapest Price	`cheapestprice`	The lowest current price for a product, checked live
Spin My Day	`spinmyday`	A whole day out in any city, matched to weather, mood and diet
Cancel My Sub	`cancelmysub`	How to cancel US and UK subscriptions, and what a card charge is
Lower My Bill	`lowermybill`	Call scripts and low-cost plans to lower household bills
Price Drop Back	`pricedropback`	Store price-adjustment rules, deadlines and a claim message
Find My Money	`findmymoney`	Official unclaimed money searches in the US and UK
Supplement Check	`supplementcheck`	Supplement labels and doses against official upper limits
Plate Pal	`platepal`	Calories and nutrition for foods, chain meals and barcodes
Plan My Workout	`planmyworkout`	Workout plans and how to do any exercise
Med Bill Check	`medbillcheck`	US medical bills against Medicare rates, with dispute letters
Appeal My Claim	`appealmyclaim`	US health insurance denials, rights, deadlines and appeal letters
Job Spotter	`jobspotter`	Current US and UK job listings
Sync My Cycle	`syncmycycle`	Likely cycle phase today, with food and workout ideas
Wardrobe Connect	`wardrobeconnect`	Clothes that match a description or a picture
Form Guide	`formguide`	Football form, fixtures, results and tables
Books Like This	`bookslikethis`	Books like one you enjoyed, and screen adaptations
Talmud Scroller	`talmud`	Daily Talmud with Daf Yomi, and tractates in English
Scroll the Gurbani	`gurbani`	Daily Gurbani with English, any Ang or shabad
Gita Scroller	`gita`	Daily Bhagavad Gita verses with English
Scroll the Lore	`lore`	Greek and Norse myth, Homer, Hesiod and the Poetic Edda
Stoic Scroller	`stoics`	Marcus Aurelius, Epictetus and Seneca
Bible Swipe	`bible`	Daily Bible readings and any passage

How it works

build.py reads each product's live openapi.json and writes products.js: one tool per GET operation, named from its operationId, with inputs from its parameters. Descriptions are tidied into plain tool descriptions.
worker.mjs is the MCP server: initialize, tools/list and tools/call, which calls the product's own API and returns its answer. Answers with a say field carry a ready-made summary.
servers.json lists every server for the official MCP Registry (as io.github.GoodTurnStudio/ ). The Publish to the MCP Registry workflow logs in with GitHub OIDC and runs publish.py; publish.ps1 does the same from Windows.

Build and test

npm install npm run build # python3 build.py, then bundle to deploy/_worker.js npm test # every product through the worker, against the live APIs npm run test:live # every tool through the deployed servers with the MCP SDK client

Deploy deploy/ as a Cloudflare Pages project in advanced mode (_worker.js).

Licence

MIT for this code. Each product's API, data and answers belong to that product and are served under its own terms, linked from its page at https://goodturn-mcp.pages.dev/ .

Supplement Check

What it does

Install

Open Claude’s Connectors page

Click “+ Add” → “Add custom connector” and fill in these 2 fields

Turn it on in a chat

Try it

Open ChatGPT’s add-MCP page on the web

Fill in the name and address

Pick Supplement Check in a chat

Try it

Open Terminal

Paste this command and press Enter

Type /mcp in Claude Code

Try it

Click this button to open Cursor

Open the AI chat in Cursor in Agent mode

Try it

Click this button to open VS Code

Open the AI chat in VS Code in Agent mode

Try it

Over the web

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

Discussion

User reviews

Compared with others in Otheri

Common questions

Others in the same category

World Monitor

Claude Flow

Windmill

README from the maker

goodturn-mcp

Products

How it works

Build and test

Licence