The Campaign Monitor API opens up a world of possibilities for integrating our platform with your favorite CMS, blog, or other third party software.

API Documentation

Browse through the topics below to find out more about our API.  

Please note: We recently updated our API version from 3.2 to 3.3. For more information about 3.2 click here. We have deprecated support for the legacy TLS connections v1.0 & v1.1 TLS v1.2 is our current supported protocol at this time.