Rapleaf's Personlization API provides rich demographic data about email addresses in real-time. You will need an Rapleaf API key in order to use this service. You can get one (for free) here: https://www.rapleaf.com/developers/api_access. With an API key, you will have free, unlimited access to age, gender, and city/state/country data. Additionally, we provide many other premium fields for a small price. Please visit our website or email us at email@example.com to get more info on pricing and our premium fields.
OUR MISSION is to make it incredibly easy for marketers to access the data they need to personalize content for their customers. We’re consumers too, and we love it when marketing messages are relevant to us. So, we fuel marketing automation tools with the necessary data to help brands keep their customers happy and engaged.