You can use the Yandex.Direct API to create applications for managing advertising campaigns, such as automating routine operations, using your own bid management algorithms, downloading statistics, and completing many other tasks.
Limited support for some API 4 and Live 4 methods is planned.
Added new features for retargeting conditions.
Changes in data structures in API 4 and Live 4: types changed for the BannerID, BannerIDS, Banner, Banners, AdID, AdIDS, and AdGroupID parameters. Details