Dataset

A dataset is a structured collection of data organized for a specific purpose and delivered as a file or set of files, rather than via real-time API calls. Datasets contain a snapshot of data at a point in time - all active property listings in a city, a complete product catalog, or historical sold transaction records.

Datasets are the right choice when you need large volumes of data for offline analysis, machine learning model training, database population, or market research. They are typically available in CSV, JSON, or Parquet format and downloaded once or refreshed periodically.

The key difference between a dataset and an API is delivery model. An API returns live data on demand; a dataset is a bulk file you download and work with locally. Many use cases benefit from both: a dataset to initialize your database and an API to keep it current.