SAPI may stand for:Speech Application Programming Interface, an API produced by Microsoft for speech recognition and speech synthesis Server application programming interface, an API used to interface with web servers such as Apache Small Arms Protective Insert, a military ballistic protection system Systém automatického pořizování informací (system for automatic gathering of information): SAPI-1, a computer produced in former Czechoslovakia by Tesla Network Service Access Point Identifier, an identifier used in GPRS networks. SaPI, a family of pathogenicity islands found in Staphylococcus aureus