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Zillow Neighborhood GetRegionChart API - Developers

The GetRegionChart API aims to generate a URL for an image file that displays the historical Zestimates for a specific geographic region. The API's objective is to accept the region as well as a chart type: either percentage or dollar value change. Optionally, the API accepts width and height parameters that constrain the size of the image. The historical data can be for the past 1 year, 5 years or 10 years.