  Active Galactic Nuclei are the dominant sources of gamma rays outside our
Galaxy and also candidates for being the source of ultra-high energy cosmic
rays. In addition to being emitters of broad-band non-thermal radiation
throughout the electromagnetic spectrum, their emission is highly variable on
timescales from years to minutes. Hence, high-cadence monitoring observations
are needed to understand their emission mechanisms. The Africa Millimetre
Telescope is planned to be the first mm-wave radio telescope on the African
continent and one of few in the Southern hemisphere. Further to contributing to
the global mm-VLBI observations with the Event Horizon Telescope, substantial
amounts of observation time will be available for monitoring observations of
Active Galactic Nuclei. Here we review the scientific scope of the Africa
Millimetre Telescope for monitoring of Active Galactic Nuclei at
mm-wavelengths.
