Meals in plain language
Say “oatmeal with banana and peanut butter” — your AI estimates calories and macros, fiber, total sugar and caffeine included, and logs it. No database search.
Lifesum alternative
Looking for a Lifesum MCP server?
Lifesum doesn't have one — so you can't use it inside Claude or ChatGPT. Nutrition MCP does the same job by conversation, and it's free and open source.
The short answer
No, Lifesum has no MCP server.
The Model Context Protocol (MCP) is the open standard that lets AI assistants like Claude and ChatGPT connect to outside tools. Lifesum doesn't publish an MCP server, so there's no official way to log food to it from your AI. If you searched for “Lifesum MCP” or “connect Lifesum to Claude,” what you're really after is a nutrition tracker that lives inside your AI — that's exactly what Nutrition MCP is.
What you get instead
The same tracking, just by talking
Barcode scanning — free
Send a product barcode and pull the label macros from Open Food Facts — fiber and sugar too, where the label lists them. No Premium subscription to unlock it.
Weight & goals
Log body weight in kg or lb, set calorie, macro, fiber, sugar, caffeine, and water goals — fiber a target to reach, sugar and caffeine limits to stay under — and track trends toward a goal weight. Alcohol tracking is there too, opt-in and off unless you turn it on.
Summaries & trends
Ask for daily totals, weekly trends, streaks, and recurring meal patterns — right in the chat.
Import & own your data
Import your history from another app's CSV export — parsed in your browser, not by the AI. Export it all back out, or delete your account, whenever you want.
Open source & free
MIT-licensed and self-hostable — no ads, no paywall, no upsell. Audit the code or run your own instance.
Lifesum vs. Nutrition MCP
How they stack up
Lifesum
- No MCP server — can't run inside Claude or ChatGPT
- Log foods by searching its database one by one
- Some features, like diet plans, need a paid plan
- Yet another app and subscription to manage
Nutrition MCP
- Built as an MCP server — lives inside Claude & ChatGPT
- Describe meals in plain language; calories, macros, fiber, sugar & caffeine estimated for you
- Barcode scanning, trends, CSV import & export — all free
- No separate app, no ads, open source
Lifesum pairs tracking with structured diet plans. Nutrition MCP is a leaner, free way to log calories, macros, and weight by talking to your AI.
Moving from Lifesum
Ratings you can just ask about
Lifesum leans on structure and feedback — diet plans, recipes, and its food-rating system that scores what you eat. Nutrition MCP doesn't grade your foods with a badge, so if that scoring loop is what motivates you, Lifesum has an edge there.
The trade is flexibility: rather than a fixed rating, you can ask your AI “is this a good choice for my goals?” and get a real answer in context. Logging is a single sentence, trends and a target weight come built in, and there's no premium tier gating the useful parts.
A badge tells you a food scored 3 out of 5; a conversation tells you why, and what to do about it — “swap half the rice for greens and this fits your day.” It's the difference between a score and a coach, and because Lifesum puts diet plans and some tracking behind Premium, it's the free option of the two.
Your Lifesum history
Nothing to retype
Ask to import and an importer opens right in the chat: pick your export, map the columns, preview what will be added, then confirm. The file is read in your browser — the AI never sees the rows. In clients without in-chat panels, paste your export instead.
Moving trackers means moving your history, and you don't have to retype a line of it. Ask to import and an importer panel opens in the chat: you pick your Lifesum CSV export, it's parsed in your browser, and you point its columns at date, food, meal, calories, protein, carbs, fat, fiber, total sugar, and caffeine. Lifesum's headings aren't recognised by name the way MyFitnessPal's, Cronometer's, Lose It!'s, and MacroFactor's are, so that mapping is a one-time manual step — after it you preview what will be added and confirm.
Nothing hides behind an assumption. The mapper shows you your own file — its real headings, real cells, and a running count of the rows that will be created — so a column aimed at the wrong field is visible before anything is written rather than discovered afterwards. Quoted fields, line breaks inside a cell, blank-ish values, and totals rows are all handled, and because the file is read in your browser the AI never sees a row it could mistype.
European exports are covered: a semicolon-delimited file with comma decimals reads correctly, DD/MM/YYYY dates convert once you've confirmed the order, and kilojoules become kilocalories with the unit shown next to a worked example from your own first row. Localised headings help too — a German export's Kalorien, Kohlenhydrate, Ballaststoffe or Koffein fills itself in, and fiber, sugar and caffeine are matched in Spanish, French, Italian and Dutch as well — so the manual mapping is usually shorter than it sounds. Run the import twice and nothing doubles — each row carries a content fingerprint, so repeats are reported as already logged.
How to switch
Connect in under a minute
Works with any MCP client that supports OAuth 2.0 with PKCE. On first connect you create an account with Google or an email and password.
- Open Claude (web or desktop) and click Customize → Connectors.
- Click +, then Add custom connector, and give it a name like Nutrition.
-
Paste
https://your-domain.com/mcpinto the Remote MCP server URL field and click Add. - Click Connect, sign in, and start logging by saying what you ate.
Using ChatGPT or another client instead? The full install guide covers ChatGPT, Cursor, VS Code, Claude Code, and more.
FAQ
Lifesum & MCP questions
Does Lifesum have an MCP server?
No. Lifesum does not offer a Model Context Protocol (MCP) server, so there is no official way to connect it to Claude, ChatGPT, or other AI assistants. Nutrition MCP is a free, open-source alternative built as an MCP server from the ground up, so you can log meals and macros directly inside your AI.
How do I connect Lifesum to Claude?
There is no official Lifesum connector for Claude, because Lifesum has no MCP server or public MCP integration. The closest option is Nutrition MCP, a free MCP server: add https://your-domain.com/mcp as a custom connector in Claude, sign in, and start logging by conversation.
Does Nutrition MCP rate my food like Lifesum's food ratings?
No — there's no badge or numeric score. Instead you can ask your AI “is this a good choice for my goals?” and get a contextual answer that explains the trade-offs, rather than a fixed rating on the food itself.
Is Nutrition MCP free without a Lifesum Premium-style plan?
Yes. Nutrition MCP is completely free and open source, with no premium tier — whereas Lifesum puts diet plans and some tracking features behind a Premium subscription. You only need a Claude or ChatGPT account to connect.
Is Nutrition MCP a good Lifesum alternative?
If you want to track calories, macros — fiber, total sugar, and caffeine included — water, and weight without opening a separate app or searching a food database, yes. Instead of tapping through a database, you describe what you ate in plain language, send a photo, or scan a barcode, and your AI logs it — completely free and open source.
Can I import my Lifesum data?
Yes, using manual column mapping. Ask to import and an importer opens in the chat: you pick your Lifesum CSV export, it's parsed in your browser rather than read by the AI, and you point its columns at date, food, meal, calories, and macros — fiber, total sugar and caffeine included — yourself. Lifesum isn't one of the four exports recognised by column name, so that mapping is a one-time manual step, though headings the mapper already knows fill themselves in. Semicolon-delimited European files with comma decimals, DD/MM/YYYY dates, and kilojoules are all handled, and re-importing the same file never creates duplicates. In clients without in-chat panels you can paste your export instead.
Does the AI read my export file when I import?
Not when the importer opens. It parses the CSV in your browser and shows you what will be added before anything is written: how many meals, the calorie total, anything it had to flag, and the rows themselves — a long file lists the first of them plus a count of the rest rather than every line. Only the rows you confirm are sent, and they go as structured data rather than through the AI's reply, so no row can be mistyped or invented in transit. Each row also carries a content fingerprint, so running the same file again reports those meals as already logged instead of duplicating them. If your client can't display in-chat panels, the fallback is to paste the export — the AI does read it on that path, so prefer the importer when you have the choice.
Is Nutrition MCP free?
Yes. Nutrition MCP is completely free with no premium tier, ads, or paywalled features — unlike apps that put some features behind a subscription. You only need a Claude or ChatGPT account to connect.
Track nutrition inside the AI you already use.
Free and open source — no Lifesum account, no app to open.