Our API directory now includes 221 marketing APIs. The newest is the Front Door Daily Deals API. The most popular, in terms of mashups, is the SendGrid API. We list 10 SendGrid mashups. Below you'll find some more stats from the directory, including the entire list of marketing APIs.
Microsoft introduced a number of campaign APIs through its Windows Store Promotions API. The APIs allow media agencies to better promote and manage ad campaigns around apps listed at the Windows Store. From ad creation to bulk action, advertisers gain more capability and control around campaigns.