Along with the rapid growth of video APIs, the marketplace of photo-related APIs continues to expand rapidly. Since we looked at 36 Photo APIs earlier this year, we've added nearly a dozen new ones, and there are now 47 APIs tagged "photo" in our web service directory.
Facebook has added IGTV metrics to the Instagram Graph API. Developers who have already upgraded to the latest version of the API will immediately be able to access the new datasets. IGTV is a standalone application that Instagram developed to allow for more immersive long-form content.