If you want to connect your Ghost site to other services like podcasts, event hosting services, or trying new marketing tactics, Outpost can help make that work seamlessly with better outcomes and more flexibility than a solution like Xapier.
For example, Tangle was looking into marketing campaigns via paid links in other newsletters. We helped create a solution where new subscribers from those links were labeled in Ghost according to where they came from, which allowed Tangle to easily calculate how the return on investment for these links was (and in one case, detect and get a refund of thousands of dollars for fraudulant sign-ups).