AGILE carried out an extensive survey of the Galactic Plane since July 2007. Several microquasars have been monitored, showing that gamma-ray emission is in general rare or not detectable by currrent gamma-ray telescopes. Flaring activity in gamma-rays is also poor and not related to hard X-ray outburst in general. On the other hand we will breafly discuss the case of Cygnus X-3 and then concentrate on Cygnus X-1: the former showing a clear evidence of gamma-ray flaring emission correlated to major spectral transitions, the latter having a more puzzling behaviour. The gamma-ray activity will be put in context with multi-wavelength behaviour and interpreted in terms of spectral emission models. Fast transient activity will be discussed also in view of the next generation of gamma-ray instruments.