You can use FlipMail Client API to bring data from your app or website into FlipMail, add new or update existing contacts, trigger event-based campaigns, and more.
FlipMail's API is based on simple HTTP POST. Use the API to integrate FlipMail programmatically with your website or application. We're working to include more APIs.
This API does not require authentication and can be used client side. You'll only need your FlipMail account ID.