
Lose It! MCP
Your Lose It! meals in ChatGPT and Claude, through Apple Health or Health Connect.
Lose It! has no official MCP server.
Memory.fit is a hosted MCP server for athletes. It has no direct Lose It! connection: link Lose It! to Apple Health or Health Connect, connect Apple Health or Health Connect in the Memory.fit app, add one address to your AI, and it reads meals or foods, as the app shares them, calories, protein, carbs and fat, fiber, sugar and sodium, when shared.
You need the Memory.fit app on Android (the iPhone app is coming), and an AI that can add a custom connector.
The address to add to your AI
https://api.memory.fit/mcp?src=mcp-lose-itMCP address: https://api.memory.fit/mcp
Lose It! and your AI, in short
- Official Lose It! MCP
- None
- Memory.fit
- Hosted MCP server, nothing to install
- Your AI reads
- Meals or foods, as the app shares them, Calories, protein, carbs and fat, Fiber, sugar and sodium, when shared
- Workouts to Lose It!
- No
- Works in
- ChatGPT, Claude, Grok Bot, Gemini and any MCP app
- Price
- $9 a month or $69 a year, with 7 days free
Checked November 10, 2026.
What your AI reads
What your AI can read from Lose It!
Once Lose It! is connected in the Memory.fit app, every AI you add reads the same history, under its own permissions.
- Meals or foods, as the app shares them
- Calories, protein, carbs and fat
- Fiber, sugar and sodium, when shared
The tools that read it:get_ledgerget_dayget_trendsget_fluid
Setup
Set up Lose It! in your AI
1. In the Memory.fit app
- 01In Lose It!, turn on its Apple Health (iPhone) or Health Connect (Android) sync and allow nutrition.
- 02In the Memory.fit app, open Settings → Health data and connect Apple Health or Health Connect.
- 03Allow Memory.fit to read nutrition.
- 04Meals you log in Lose It! appear on that day in Memory.fit, labeled Lose It!, and count once in the day.
2. In your AI
Pick your AI. Each one connects to your Memory.fit account, with a sign in or a key.
ChatGPTOn a computer · about two minutes
- 01On chatgpt.com, open Plugins and tap +, then Add custom MCP server
- 02Name it Memory.fit and paste the address
- 03Choose OAuth, confirm the warning, then Create as a plugin and sign in
- 04In a new chat, type @ and pick Memory.fit
The address: https://api.memory.fit/mcp?src=mcp-lose-it
Coming soon: one tap from ChatGPT's plugin directory.
ClaudeAny plan · about a minute
- 01Install in Claude
- 02Tap Add, then sign in to Memory.fit
- 03In a chat, turn on Memory.fit under + › Connectors
Claude adds new connectors on the web or desktop. On a phone, use a computer once, and after that it works in the Claude app too.
Grok BotComes with X Premium, Super or Ultra, or a legacy Cursor plan
- 01In the Memory.fit app, open Settings → AI agents → Grok Bot and copy your Memory.fit link.
- 02Open Grok Bot on your computer or phone and message any of your Bots.
- 03Send “Add a custom MCP server called Memory.fit at” and paste your Memory.fit link.
- 04Check the name and link it shows you, then approve it.
- 05Tap Authorize and sign in with your Memory.fit account. Memory.fit works from your next message.
The address: https://api.memory.fit/mcp?src=mcp-lose-it
MuseUS only · 18+
- 01In the Memory.fit app, open Settings → AI agents → Muse and create your key.
- 02In a Muse chat, say: “Add a custom connector called Memory.fit. Its address is the link I’ll paste, and it needs a key.”
- 03Paste your Memory.fit address when Muse asks.
- 04Paste your key into Muse’s secure credentials prompt, never into the chat.
The address: https://api.memory.fit/mcp?src=mcp-lose-it
Muse connects with a key from the Memory.fit app. Paste it into Muse's settings, never into a chat.
DotsChatGPT Pro, Business Premium or Enterprise
- 01In the Memory.fit app, open Settings → AI agents → Dots and copy your Memory.fit link.
- 02On chatgpt.com in your browser, open Plugins and tap +.
- 03Choose Add custom server, name it Memory.fit and paste your Memory.fit link.
- 04Pick sign-in, then sign in with your Memory.fit account and choose what it may do.
- 05In your dot's app settings, allow Memory.fit. Then message your dot.
The address: https://api.memory.fit/mcp?src=mcp-lose-it
GeminiPersonal Google account · 18+
- 01On gemini.google.com: Customize › Connectors
- 02Tap + Custom
- 03Paste the address, tap Next, then Connect, and sign in to Memory.fit
- 04In a chat, type @ and pick it under Connectors
The address: https://api.memory.fit/mcp?src=mcp-lose-it
No + Custom button? Work accounts don't have it: use a personal Google account. Gemini asks you to allow each change it makes.
GrokSign in · about a minute
- 01Copy the address
- 02In Grok: Settings › Connectors › Custom Connector › Connect
- 03Name it Memory.fit, paste it, tap Add Connector, then sign in to Memory.fit
The address: https://api.memory.fit/mcp?src=mcp-lose-it
Perplexity ComputerPro · about two minutes
- 01Copy the address
- 02On perplexity.ai: Settings › Connectors › + Custom connector › Remote
- 03Name it Memory.fit, paste the address and choose API key
- 04Paste your key from the Memory.fit app, then save
The address: https://api.memory.fit/mcp?src=mcp-lose-it
Perplexity Computer connects with a key from the Memory.fit app. Paste it into Perplexity Computer's settings, never into a chat.
Cursor
- 01In the Memory.fit app, open Settings → AI agents → Cursor and create your key.
- 02Add the block to ~/.cursor/mcp.json (or .cursor/mcp.json in a project).
- 03Check Cursor Settings → Tools & MCP shows Memory.fit as connected.
{
"mcpServers": {
"memory-fit": {
"url": "https://api.memory.fit/mcp?src=mcp-lose-it",
"headers": { "Authorization": "Bearer mem_pat_your_key" }
}
}
}Cursor connects with a key from the Memory.fit app. Paste it into Cursor's settings, never into a chat.
Claude CodeOn a computer · Claude Code · about a minute
- 01In your terminal, run the command
- 02Start Claude Code and run /mcp
- 03Pick memory-fit and sign in to Memory.fit
claude mcp add --transport http memory-fit "https://api.memory.fit/mcp?src=mcp-lose-it"CodexOn a computer · Codex CLI · about a minute
- 01In your terminal, run the command
- 02Then run: codex mcp login memory-fit
- 03Sign in to Memory.fit in the browser that opens
codex mcp add memory-fit --url "https://api.memory.fit/mcp?src=mcp-lose-it"Try it
Try these prompts
“Summarize my calories and protein from Lose It! for the last two weeks next to my training.”
Uses:get_ledgerget_trends
“Which days this month did I eat well under my target, and what was I training?”
Uses:get_ledgerget_day
“How much did I eat on the day before and the day of my last long run?”
Uses:get_ledgerget_day
“Plan next week's meals around my hardest sessions.”
Uses:get_trendsset_meal_plan
Your options
Every way to get Lose It! into an AI
Lose It! runs no MCP server. Community servers run on your own computer, hosted services run it for you, and so does Memory.fit.
| Option | Where it runs | What you need |
|---|---|---|
| Community serveratfinke/loseit-mcpOn your own computer | On your own computer | Your Lose It! email and password, run on your own computer. It uses the web app's undocumented interface. |
| Community servercabird/loseit-mcpOn your own computer | On your own computer | Your Lose It! email and password, run on your own computer. It can log meals and weigh-ins as well as read them. |
| Hosted MCP serverMemory.fit MCPHosted, in ChatGPT, Claude, Grok Bot, Gemini and any MCP app | Hosted, in ChatGPT, Claude, Grok Bot, Gemini and any MCP app | The Memory.fit app with Apple Health (iPhone) or Health Connect (Android) connected, and Lose It! sharing its nutrition there. $9 a month or $69 a year, with 7 days free. |
When another option is better
- You want your AI to log meals inside Lose It!: a community server can, using your Lose It! login, and it can break when Lose It! changes its web app. Memory.fit reads your meals and changes nothing in Lose It!.
Limits, said plainly
- Lose It! publishes no public API. What your AI sees is what Lose It! shares with Apple Health or Health Connect; the detail depends on what the app writes there.
- Only entries made after you connect come through; Lose It! does not back-fill history.
- Memory.fit reads your meals and changes nothing in Lose It!.
Sources, checked November 10, 2026
- github.com/atfinke/loseit-mcp: Unofficial; reads daily calorie summary, weekly history and the food log through the web app's GWT-RPC endpoint; LOSEIT_EMAIL and LOSEIT_PASSWORD; may break when Lose It! ships a new web build; 5 stars
- github.com/cabird/loseit-mcp: Unofficial; README says Lose It! publishes no public API and this uses the private web endpoint, so it can break on a new web build; search, log, diary and weight tools; 2 stars
- loseit.zendesk.com/hc/en-us/articles/47773580085140-Using-Apple-Health-With-Lose-It: Lose It!: sends weight, food and exercise to Apple Health (iOS); reads weight, food and exercise from it; historical data is not synced; updated April 1, 2026
- loseit.zendesk.com/hc/en-us/articles/47650100219028-Using-Health-Connect-With-Lose-It: Lose It!: writes total calories, macronutrients and micronutrients, weight, workouts and steps to Health Connect; reads steps, workouts and weight; updated July 23, 2026
Questions
Lose It! MCP, in short.
No. Lose It! does not run an MCP server. Community servers exist, and you run them yourself.
Yes, through Apple Health or Health Connect. Link Lose It! to Apple Health or Health Connect, connect Apple Health or Health Connect in the Memory.fit app, add Memory.fit to ChatGPT as a connector, and ChatGPT reads each finished session. Claude and every MCP app work the same way.
No. Memory.fit is hosted: you add one address to your AI and sign in with your Memory.fit account. Nothing to install, no password of another service to paste.
Each AI gets only the permissions you allow, every change shows in the app with who made it, and you can disconnect an AI or a source at any time.
Lose It! publishes no public API. Memory.fit does not need one: it reads the nutrition Lose It! writes to Apple Health or Health Connect.
Related
More MCP pages
Lose It! is a trademark of FitNow, Inc. Memory.fit is not made by or affiliated with FitNow, Inc.
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