Meals in plain language
Say “oatmeal with banana and peanut butter” — your AI estimates calories and macros and logs it. No database search.
Cronometer alternative
Looking for a Cronometer MCP server?
Cronometer 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, Cronometer 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. Cronometer doesn't publish an MCP server, so there's no official way to log food to it from your AI. If you searched for “Cronometer MCP” or “connect Cronometer 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 verified macros from Open Food Facts. No Premium subscription to unlock it.
Weight & goals
Log body weight in kg or lb, set calorie, macro, and water targets, and track trends toward a goal weight.
Summaries & trends
Ask for daily totals, weekly trends, streaks, and recurring meal patterns — right in the chat.
Export & own your data
Export everything to CSV anytime and delete your account and data 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.
Cronometer vs. Nutrition MCP
How they stack up
Cronometer
- No MCP server — can't run inside Claude or ChatGPT
- Log by searching its database, entry by entry
- Some features require a paid Gold plan
- A separate app to open every time you eat
Nutrition MCP
- Built as an MCP server — lives inside Claude & ChatGPT
- Describe meals in plain language; macros estimated for you
- Barcode scanning, trends, and exports — all free
- No separate app, no ads, open source
Cronometer is excellent if you want deep micronutrient precision. Nutrition MCP takes a lighter, conversational approach to calories, macros, and weight — right inside your AI.
Moving from Cronometer
When accuracy is the whole point
Cronometer earned its reputation on precision — curated databases and tracking for 80+ micronutrients, vitamins and minerals included. If that micronutrient depth is why you open it, be honest with yourself: conversational estimates won't match a lab-grade database entry gram for gram.
But most people log to keep calories and the big three macros in range, not to audit their selenium intake. For that, describing a meal to your AI is far less work than searching for and weighing every component — and you still get daily totals, trends, and a target weight to track against, for free.
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://nutrition-mcp.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
Cronometer & MCP questions
Does Cronometer have an MCP server?
No. Cronometer 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 Cronometer to Claude?
There is no official Cronometer connector for Claude, because Cronometer has no MCP server or public MCP integration. The closest option is Nutrition MCP, a free MCP server: add https://nutrition-mcp.com/mcp as a custom connector in Claude, sign in, and start logging by conversation.
Is Nutrition MCP a good Cronometer alternative?
If you want to track calories, macros, 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 Cronometer data?
There is no automatic Cronometer import yet. Because logging is conversational it is quick to start fresh, and you fully own your Nutrition MCP data — export everything to CSV or delete your account at any time.
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 Cronometer account, no app to open.