0620065

3C 454.3 is one of the most variable blazars from radio up to gamma-raysenergy bands. In 2005 and 2007 the source was detected in a strong optical activity thattriggered observations by other observatories. In 2005 a strong hard X-rays emission was detected by INTEGRAL from 3 up to 200 keV the flux being afactor 2-3 higher than that previously observed. The model predictions were notstrongly constrained. The lack of gamma-rays data did not help to break thedegeneracy among the parameters in SSC and EC models. In 2007 the increase in the optical activity triggered Swift and AGILEobservations. During this flare AGILE detected a flux of 3C 454.3 that was the highest everdetected for this blazar (280+-40 E-8 photons cm ^-2 s^-1). On the other hand Swift-BAT did not detect a significant hard-X rays emission. At moment the available data do not help to investigate the correlation (if any) between the hard-Xrays and gamma-rays emissions in both high and low gamma-ray activity. AGILE is showing as 3C 454.3 is very active in the gamma-rays then the highstate seems to be the ``ordinary life of this source. However we argue as all gamma-ray states of the source have to beinvestigated simultaneously with its hard-X rays state. On the basis of these considerations we request to monitor the activity ofthis blazar over a period of 1-week during the 3/4 weeks of a standard AGILE pointing. [truncated! Please see actual data for full text]