Factual provides a platform for developers to share, mash, and build applications on open data. Geopulse provides point-based access to geographic area attributes. The user provides a long/lat coordinate pair, or selects a point on a map, and factual provides business/demographic, and commercial information about the immediate geographic area. The search can return commercial density, commercial business profile, commercial/residential ratios, and population demographics like age, gender, race, education, median income, and other info. The services accepts REST calls and will return JSON. An API Key is required for service and the first 10,000 API calls each day are free.
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So far, we don't have a record of any changes to this API