High energy astrophysics with INTEGRAL

INTEGRAL is an ESA mission scheduled to be launched in 2001. Its four coali gned instruments will allow observations of cosmic sources from a fraction of a keV to several MeV plus source monitoring in the optical band. INTEGRA L will be operated as a space observatory and an Announcement of Opportunit y to the astronomical community at large will be issued by ESA in the sprin g of the year 2000. Purpose of this paper is to illustrate INTEGRAL capabil ities of the three X and Gamma Ray detectors plus optical monitor in order to help potential users to write observing proposals.