Man pages matching name anyevent::fcgi in section 3pm:

AnyEvent::FCGI.3pm.en	debian 10 / libanyevent-fcgi-perl
AnyEvent::FCGI.3pm.en	debian 11 / libanyevent-fcgi-perl
AnyEvent::FCGI.3pm.en	debian 12 / libanyevent-fcgi-perl