Barcode lookup and nutrition comparison for 3M+ crowd-sourced food products
Connects to Open Food Facts to look up packaged foods by barcode, search by ingredients or labels, and compare nutrition scores. Returns Nutri-Score, allergens, additives, NOVA processing level, and full nutrition facts.
Try asking Muse: "Compare the nutrition and allergen content of three breakfast cereals by scanning their barcodes."
Source: Found in the official MCP Registry (io.github.cyanheads/openfoodfacts-mcp-server) · First listed September 25, 2026
Each bar is one check, every 15 minutes. Green means it answered. Last checked 1 h ago.
What Muse can see: It does not ask you to sign in, so it cannot see your accounts. It only sees what Muse sends it from your request.
Before it acts: Read what Muse plans to do before you approve it, and remove the app from Muse when you stop using it.
musedirectory.ai is not part of Meta. More about how Muse handles your information
Not in Muse's Connectors list yet, but Muse can still use it. Copy the request below and paste it into Muse. Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
https://openfoodfacts.caseyjhand.com/mcpNot in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
Open Food Facts is a remote MCP server, so any assistant that can add a custom connector by link can use it. Same link, same tools.
In ChatGPT, open Settings, then Connectors (called Apps & Connectors on some accounts).
Under Advanced settings, switch on Developer mode. That is what lets you add a connector by link.
Choose Create, give it a name, paste the link as the MCP server URL, and save. If it needs a sign-in, ChatGPT asks for it here.
Start a chat, open the tools menu, pick the connector, and ask. ChatGPT asks before it runs a tool the first time.
Custom connectors need a paid ChatGPT plan, and on Team, Enterprise and Edu accounts only an admin can add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in ChatGPT
In Claude, open Settings, then Connectors.
Choose Add custom connector, give it a name, and paste the link.
If it needs a sign-in, Claude sends you to it. Then turn the connector on in a chat from the tools menu and ask.
Custom connectors are available on paid Claude plans; on Team and Enterprise accounts an admin may need to add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in Claude
https://openfoodfacts.caseyjhand.com/mcpResponse time at the last check: 402ms. Worked in 100% of checks over 30 days.
Screened, no issues found
Screening looks for known threats and hidden instructions at the time of the check, and runs again weekly and whenever the tool list changes. It cannot see the server's code, so only connect what you need and review what Muse asks to do. How screening works.
off_get_productFetch a packaged food product by barcode (4–40 digits: EAN-13, EAN-8, UPC, and the shorter and longer codes Open Food Facts also holds) from Open Food Facts. Returns the product name and generic name, brand, quantity, ingredients (raw text and parsed list), declared allergens, troff_search_productsSearch Open Food Facts by full-text query, structured tag filters, or both at once. Returns a summary list with barcodes, product names, brands, Nutri-Score, NOVA group, Green-Score, and categories — enough for triage and selection, not full label data. Use off_get_product on theoff_compare_productsSide-by-side nutrition and scoring comparison for 2–10 products per call by barcode; a repeated barcode is compared once, so two identical barcodes yield one row, and barcodes past the 10th distinct one are listed in unprocessed rather than fetched. Returns a normalized table of off_browse_taxonomyResolve a human term to the canonical Open Food Facts tag ID that off_search_products filters on. Covers categories, labels/certifications, allergens, additives, countries, ingredients, NOVA groups, and Nutri-Score grades. Pass a search term to resolve against the Open Food Factshttps://openfoodfacts.caseyjhand.com/mcpNot in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Open Food Facts to help me. It is a free service with an MCP server at https://openfoodfacts.caseyjhand.com/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
At the last check (November 13, 2026, 17:45 UTC) the endpoint was working, answering in 402ms. Over the last 7 days it answered 100% of health checks. It is checked every 15 minutes.
It was screened on September 25, 2026 with the result "screened, no issues found". Screening checks the domain against threat feeds and reads the tools for hidden instructions and requests for passwords or card numbers. It cannot see the server's code, so grant only the access you need.
It exposes 4 tools, including off_get_product, off_search_products, off_compare_products, off_browse_taxonomy. For example, you could ask Muse: "Compare the nutrition and allergen content of three breakfast cereals by scanning their barcodes."
This listing was added from public sources (Found in the official MCP Registry (io.github.cyanheads/openfoodfacts-mcp-server)). If you build Open Food Facts, claim it to correct the details and get your badge.
Paste this on your site or README. It always shows the latest check.
<a href="https://musedirectory.ai/connector/open-food-facts"><img src="https://musedirectory.ai/badge/open-food-facts.svg" alt="Open Food Facts on musedirectory.ai" width="236" height="40"></a>