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MFP Logger

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Enables logging food into MyFitnessPal diary via natural language, supporting search, log, quick add, and diary retrieval.

shivangisehgalby shivangisehgal
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About

Enables logging food into MyFitnessPal diary via natural language, supporting search, log, quick add, and diary retrieval.

README

Chat to log food into MyFitnessPal — from your phone (Claude / ChatGPT) via an always-on Railway server, or from your Mac terminal.

Say:

log 2 eggs and a banana for breakfast

…and it lands in your diary (meal + quantity + date).

MyFitnessPal diaries are meal-based (Breakfast / Lunch / Dinner / Snacks), not clock timestamps.

Phone setup (Railway — recommended)

Your Mac does not need to stay on. Claude’s cloud calls your Railway URL.

1. Get an MFP session cookie

On any browser logged into myfitnesspal.com:

  1. DevTools → Application → Cookies → www.myfitnesspal.com
  2. Copy __Secure-next-auth.session-token (or the full Cookie header)

2. Create a Railway project

  1. Push this repo to GitHub (or deploy from the Railway CLI).
  2. railway.app → New Project → Deploy from GitHub (Dockerfile is detected).
  3. Variables (Settings → Variables):
Variable Value
MCP_AUTH_TOKEN long random secret (python3 -c "import secrets; print(secrets.token_urlsafe(32))")
MFP_COOKIE the session cookie from step 1
MFP_USERNAME optional MFP username if needed
  1. Service → Settings → Networking → Public Networking → Generate Domain
  2. Wait until deploy is healthy (/healthz should return {"ok":true,...}).

3. Connect Claude (once on web)

Claude’s custom connector UI often only shows OAuth fields (no Bearer header). Use the secret path URL instead:

https://YOUR-APP.up.railway.app/t/YOUR_MCP_AUTH_TOKEN/mcp
  1. Open claude.ai/customize/connectors (same account as iOS).
  2. Add custom connector
  3. Paste that full URL (token is in the path)
  4. Leave OAuth Client ID and Client Secret empty
  5. Add / Connect

4. Use Claude on iPhone

  1. Open Claude iOS → chat → + → Connectors → enable this connector
  2. Message: log 2 eggs and a banana for breakfast

ChatGPT mobile

Same path URL works. If ChatGPT asks for an API key, you can still paste MCP_AUTH_TOKEN, but the path URL alone is enough.

When the MFP cookie expires

Session cookies die every few weeks. On your phone:

  1. Open https://YOUR-APP.up.railway.app/admin
  2. Enter MCP_AUTH_TOKEN + a fresh cookie → Save
  3. Also paste the same cookie into Railway Variables → MFP_COOKIE (so restarts keep it)

Local Mac (optional)

uv sync
uv run mfp-logger auth          # save cookie locally
uv run mfp-logger chat          # needs OPENAI_API_KEY — terminal agent
uv run mfp-logger mcp           # local MCP for testing only

MCP tools

Tool Purpose
search_food Search MFP database
log_food Log food + quantity + meal + date
quick_add Quick-add calories/macros
get_diary Read diary for a day
get_goals Daily goals
delete_food Remove a mistaken entry

Security

  • Treat MCP_AUTH_TOKEN like a password. Anyone with
    https://…/t/<token>/mcp can write to your diary.
  • Prefer not sharing that URL; rotate the token in Railway if it leaks.
  • Never commit .env (contains MFP_COOKIE).

from github.com/shivangisehgal/mfp-logger

Install MFP Logger in Claude Desktop, Claude Code & Cursor

Recommended · one command, every IDE
unyly install mfp-logger

Installs into Claude Desktop, Claude Code, Cursor & VS Code — handles npx, uvx and build-from-source repos for you.

First time? Get the CLI: curl -fsSL https://unyly.org/install | sh

Or configure manually

Run in your terminal:

claude mcp add mfp-logger -- uvx --from git+https://github.com/shivangisehgal/mfp-logger mfp-logger

FAQ

Is MFP Logger MCP free?

Yes, MFP Logger MCP is free — one-click install via Unyly at no cost.

Does MFP Logger need an API key?

No, MFP Logger runs without API keys or environment variables.

Is MFP Logger hosted or self-hosted?

Self-hosted: the server runs locally on your machine via the install command above.

How do I install MFP Logger in Claude Desktop, Claude Code or Cursor?

Open MFP Logger on unyly.org, pick your client tab (Claude Desktop, Claude Code, Cursor) and press Install — the config is generated automatically, no JSON editing.

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