The Envato PHP SDK by Japh wraps the API to access marketplace data. Methods allow to interact with items, search the marketplace, and view collections. Some examples available include code to search for sliders, get account balance, and get featured item.
Agora.io has launched an Agora Interactive Broadcasting API developers can use to add real-time interactive broadcasting capabilities to web and mobile applications. Agora Interactive Broadcasting supports up to 7 active speakers and 10,000 participants, and is available via the Agora SDK.
Facebook-owned Instagram has broken apps and surprised developers by substantially reducing the number of API calls allowed per user per hour. According to reports, the rate limit for the Instagram API was reduced from 5,000 per user per hour to 200 per user per hour this weekend without warning.
Apple recently announced a new API that allows third party websites and apps to embed Live Photos. Live Photos has been around since 2015; however, embedding Live Photos outside of a Mac or iOS environment has been somewhat challenging to date. The Live Photos API should alleviate that difficulty.