kaloricketabulky-sdk

Typesafe, async, read-only access to the kaloricketabulky.cz internal API. The SDK layer (kaloricketabulky.sdk) is self-contained and usable on its own; the surrounding package adds configuration and a command-line entry point.

The site has no official public API. This is an unofficial client built against the endpoints the web app uses. Use it for your own data only, be a respectful guest: don't hammer the site with requests, keep your polling slow and infrequent, and don't be a dick about it.

If you get value out of kaloricketabulky.cz, please consider supporting them with a subscription.

Requirements

• Python >= 3.12
• uv

Install

uv add kaloricketabulky-sdk

Usage

import asyncio
from datetime import date

from kaloricketabulky.sdk import KaloricketabulkyClient, SnapshotType


async def main() -> None:
    async with KaloricketabulkyClient() as client:
        await client.login("you@example.com", "password")

        diary = await client.get_diary(date(2026, 6, 2))
        streak = await client.get_streak(date(2026, 6, 2))
        weight = await client.get_snapshot(SnapshotType.WEIGHT, date(2025, 6, 2), date(2026, 6, 2))
        print(diary.energy_total, streak, weight.min, weight.max)


asyncio.run(main())

login stores the session cookies on the underlying HTTP client and later requests reuse them. The session can expire; if a request starts failing, call login again.

CLI

Set KALORICKETABULKY_EMAIL + KALORICKETABULKY_PASSWORD in your environment or a .env file, then:

uv run kaloricketabulky streak --date 2026-06-02
uv run kaloricketabulky diary --date 2026-06-02
uv run kaloricketabulky snapshot --metric weight --from 2025-06-02 --to 2026-06-02

Retries

The SDK ships no retry logic, to stay thin and to avoid hammering an unofficial API. To add retries or backoff, inject your own client — for example connection-level retries:

import httpx
from kaloricketabulky.sdk import KaloricketabulkyClient

async with httpx.AsyncClient(
    base_url="https://www.kaloricketabulky.cz",
    transport=httpx.AsyncHTTPTransport(retries=3),
) as http:
    client = KaloricketabulkyClient(client=http)
    await client.login("you@example.com", "password")
    ...

A supplied client is not closed by KaloricketabulkyClient — manage its lifecycle yourself (e.g. async with). Note that login (and any Set-Cookie the server returns) populates the client's cookie jar; that is how the session is carried. A supplied client must set its own base_url; the base_url= argument applies only when KaloricketabulkyClient creates its own HTTP client. Unsure which URL? Reuse Settings.base_url from kaloricketabulky.config.

Development

uv sync                      # create the environment from the lockfile
uv run pytest                # run tests with coverage
uv run ruff format --check . # check formatting
uv run ruff check .          # lint
uv run mypy src tests        # strict type-check

Layout

src/kaloricketabulky/
    __init__.py    package version
    __main__.py    command-line entry point (`kaloricketabulky`)
    sdk/           standalone read-only SDK (httpx + pydantic only)
tests/             test suite

Releases

Versioning and the changelog are driven by Commitizen. Do not edit CHANGELOG.md by hand:

uv run cz bump

License

MIT