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cabird/loseit-mcp

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Repository Install

Unofficial MCP server and CLI for logging food to Lose It!

Обзор

An MCP server and CLI for logging food to Lose It!. ⚠️ Lose It! publishes no public API. This talks to the private GWT-RPC endpoint used by the Lose It! web app, so it can break whenever they ship a new web build. log_custom_food exists because updateFoodLogEntry carries the food's name, brand, and nutrient map inline — so an entry can describe a food the database has never heard of. Use it for restaurant meals, homemade dishes, or any portion where forcing a database match would distort the numbers. .env is gitignored. The session token is cached at ~/.config/loseit-mcp/session.json with owner-only permissions and refreshes automatically when it expires. Register the stdio server with an MCP client: To host one server for multiple accounts, see DEPLOYMENT.md. The same operations are available directly, which is the easiest way to test: Add --dry-run to either log command to preview the math without writing, and --json for machine-readable output.

README

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loseit-mcp

An MCP server and CLI for logging food to Lose It!.

⚠️ Unofficial. Lose It! publishes no public API. This talks to the private GWT-RPC endpoint used by the Lose It! web app, so it can break whenever they ship a new web build.

Tools

Tool Description
search_food Search the food database; returns food_ids
describe_food Full nutrition and serving detail for one food
get_diary A day’s entries with calories and macros, plus totals
log_food Log a database food to a meal
log_custom_food Log arbitrary calories/macros with no database match
log_weight Record a weigh-in
get_weight_history Read weigh-ins over a range, with min/max/change
delete_entry Delete a diary entry
whoami Show the authenticated account

log_custom_food exists because updateFoodLogEntry carries the food’s name, brand, and nutrient map inline — so an entry can describe a food the database has never heard of. Use it for restaurant meals, homemade dishes, or any portion where forcing a database match would distort the numbers.

Setup

uv sync
cp .env.example .env   # then fill in your credentials

Configuration

Settings resolve in priority order: CLI flags → environment → .env → JSON config file → defaults.

Variable Required Description
LOSEIT_EMAIL yes* Lose It! account email
LOSEIT_PASSWORD yes* Lose It! account password
LOSEIT_TOKEN no A liauth JWT, used instead of email/password
LOSEIT_HOURS_FROM_GMT no UTC offset in whole hours; auto-detected
LOSEIT_STRONG_NAME no GWT permutation, if Lose It ships a new build
LOSEIT_POLICY_HASH no GWT policy hash, if Lose It ships a new build

* Not required if LOSEIT_TOKEN is set.

.env is gitignored. The session token is cached at ~/.config/loseit-mcp/session.json with owner-only permissions and refreshes automatically when it expires.

Running the server

loseit-mcp serve                                  # stdio (default)
loseit-mcp serve --transport streamable-http --port 8000

Register the stdio server with an MCP client:

{
  "mcpServers": {
    "loseit": {
      "command": "uv",
      "args": ["run", "loseit-mcp", "serve"],
      "cwd": "/absolute/path/to/loseit-mcp"
    }
  }
}

To host one server for multiple accounts, see DEPLOYMENT.md.

CLI

The same operations are available directly, which is the easiest way to test:

loseit-mcp search "greek yogurt" -n 5
loseit-mcp describe 
loseit-mcp diary 2026-07-25
loseit-mcp log  -m lunch -a 120 -u g
loseit-mcp log-custom "Caesar Salad" 620 -m lunch -b "Gastrohub" -p 46 -c 18 -f 40
loseit-mcp weigh 199.2
loseit-mcp weights -n 14
loseit-mcp delete  -d 2026-07-25
Открыть полный README на GitHub

Установка

This server does not publish a one-line install command.

Open the repository installation guide Новичок в MCP? Начните с руководства на mcpskill.org →

Конфигурация

{ "mcpServers": { "loseit": { "command": "uv", "args": ["run", "loseit-mcp", "serve"], "cwd": "/absolute/path/to/loseit-mcp" } } }