Barchart OnDemand provides data pertaining to the agriculture, media, financial, and energy industries. The getMomentum API provides a daily summary on the number of advancing, declining and unchanged stocks, as well as the percentage of stocks above moving averages of different lengths. All Barchart OnDemand APIs allow for queries in JSON, XML, and CSV formats. Developers can visit BarChart's site to request permission for API usage.
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