The Intrinio Zacks Historical Analyst Ratings API offers buy, sell, and hold recommendations from brokerages across any time period. This data is aggregated and validated by Zack's research team. The API supports US and Canadian securities, quarterly and annual earnings estimates, historical estimates, average ratings, and ratings date. Data is available in CSV and JSON. Intrinio is a provider of financial services that delivers data collection, data entry, and data analysis tools.