PredictHQ provide event APIs and tools which among other things can be used for forecasting so you can model the impact of events on your demand. The goal is to increase your forecast accuracy by taking into account the impact of events on demand.

PredictHQ’s Aggregate Event Impact demonstrates how to improve the accuracy of a demand forecasting model and add features to your model that use the Aggregated Event Impact data.

Head over to sign up for an API key and give it a try!