shelfatlas

Official, typed Python client for the ShelfAtlas Catalog API — read access to normalised Danish retail catalog data (products, offers, stores, chains, and price history).

Install

pip install shelfatlas

Requires Python 3.10+. Depends on httpx and pydantic v2.

Authentication

Every request is authenticated with a ShelfAtlas API key (Authorization: Bearer sa_live_<key>). Create one in your ShelfAtlas dashboard and keep it server-side.

Quick start

from shelfatlas import CatalogClient

with CatalogClient(base_url="https://api.shelfatlas.com", api_key="sa_live_…") as client:
    # Products for one brand, minus two discontinued items
    products = client.products.list(
        brand_ids=["<brand-uuid>"],
        exclude_ids=["<product-uuid>", "<product-uuid>"],
        limit=24,
    )
    for product in products.data:
        print(product.id, product.canonical_name)

    # Current offers for a batch of products
    offers = client.offers.list(product_ids=[p.id for p in products.data])

    # Daily minimum-price series
    history = client.price_history.daily(product_ids=[p.id for p in products.data])

    # Stores within 5 km of a coordinate
    stores = client.stores.nearest(lat=55.68, lng=12.57, radius_km=5)

    # All chains (not paginated)
    chains = client.chains.list()

    # Walk every page of a listing
    for product in client.iter_products(chain_slug="netto"):
        print(product.canonical_name)

Numeric price fields are decimal strings (Postgres numeric columns are returned as strings, not floats) — parse with decimal.Decimal before arithmetic.

Methods

Errors

Every failure raises CatalogAPIError with a .code: unauthorized · rate_limited (carries .retry_after_sec) · invalid_params · not_found · server_error · network_error · invalid_response. GETs retry automatically on 429/5xx (3 attempts, exponential backoff, honouring Retry-After).

from shelfatlas import CatalogAPIError

try:
    client.products.get("missing")
except CatalogAPIError as err:
    if err.code == "not_found":
        ...

Rate limits & quotas

Free keys: 1,000 requests lifetime, 60 requests/minute. Partner keys: no lifetime cap, 600 requests/minute.

API reference

The full machine-readable contract this client conforms to is published as OpenAPI 3.1 at https://shelfatlas.com/docs/openapi.json. Human docs: https://shelfatlas.com/docs.

Development

This SDK has its own toolchain (uv), independent of the JS monorepo:

make setup     # uv venv (Python 3.12) + install -e ".[dev]"
make test      # pytest
make build     # uv build → sdist + wheel in dist/
make smoke CATALOG_API_KEY=sa_live_…   # live end-to-end test
make openapi   # regenerate tests/openapi.json from the TS source of truth

License

MIT