  The AGILE $\gamma$-ray telescope (Tavani et al. 1998) will have a relatively
uniform sensitivity over a very wide field of view. This allows to
simultaneously monitor several AGN's and to react quickly with multiwavelength
observations in the case of flaring activity. The large cumulative sky coverage
will also lead to a significant increase in the number of $\gamma$-ray emitting
AGN's known at the end of the mission.
