Automated grocery price research

Stop & Shop, observed over time.

A transparent weekly pipeline that turns anonymous public catalog pages into durable price history, assortment signals, promotion tracking, and anomaly review.

Local context: Baldwin store #2577 at 905 Atlantic Avenue establishes the project’s market relevance. The collected values are public online prices and may differ from that store’s shelves.
Baseline established
Products42,255
Sitemap coverage71.0%
Categories2,497
Median price$5.29

Raw observations

Immutable, compressed JSONL snapshots preserve product identity, catalog attributes, price, availability, source, and observation time.

Derived intelligence

Adjacent snapshots produce movements, churn, trends, volatility, promotions, and conservative robust outlier flags.

Safety before publication

Robots rules, minimum coverage, valid-price, overlap, and product-count gates prevent partial crawls from replacing a healthy baseline.

Open methodology

The repository includes its schema, limitations, tests, workflow, and machine-readable weekly summary. No account credentials or private APIs are used.

Open the latest weekly price intelligence →