GitHub - matin/garth: Garmin SSO auth + Connect Python client

Garmin SSO auth + Connect Python client

Features

OAuth1/OAuth2 authentication (OAuth1 token lasts ~1 year)
MFA support with custom handlers
Auto-refresh of OAuth2 token
Auto-resume from GARTH_HOME or GARTH_TOKEN environment variables
Works on Google Colab
Pydantic dataclasses for validated data
Full test coverage

Installation

Quick Start

Authenticate and save session

import garth
from getpass import getpass

garth.login(input("Email: "), getpass("Password: "))
garth.save("~/.garth")

Resume session

import garth
from garth.exc import GarthException

garth.resume("~/.garth")
try:
    garth.client.username
except GarthException:
    # Session is expired. You'll need to log in again
    pass

Or use environment variables for automatic session restoration:

export GARTH_HOME=~/.garth
# or
export GARTH_TOKEN="eyJvYXV0aF90b2tlbi..."  # from `uvx garth login`

import garth
# Session is automatically loaded
garth.client.username

Fetch data

# Get daily stress
garth.DailyStress.list("2023-07-23", 7)

# Get sleep data
garth.SleepData.get("2023-07-20")

# Get weight
garth.WeightData.list("2025-06-01", 30)

# Direct API calls
garth.connectapi("/usersummary-service/stats/stress/weekly/2023-07-05/52")

Documentation

Full documentation at garth.readthedocs.io

MCP Server

garth-mcp-server is in early development.

To generate your GARTH_TOKEN, use uvx garth login.