Smaato is currently running Native Ads on the Smaato Native Advertising Standard Template, which is currently in version 1.0.
The Smaato Native Advertising Standard Template works as an OpenRTB extension object, thus it's compatible with OpenRTB 2.0 to 2.2. OpenRTB 2.3 is not required.
Extension Object Description
native: the root object of the Template extension.
ver: represents the used Template version (currently 1.0)
iconsize: the icon's width & height; recommended: width: 80 & height: 80
imagesize: the main image's size; recommended: width: 1200 & height: 627
pubnsupport: contains the types of creatives that publishers are requesting and are able to handle & render; if the parameter is missing, the default setting is text.
ctatextlen: the requested maximum length of the call to action text; recommended maximum length is 15 characters.
titlelen: the requested maximum character length for titles (25 characters recommended)
textlen: the requested maximum character length for text elements (100 characters recommended)