A biometric interface specification developed by I/O Software. In 1998, I/O Software joined the BioAPI Consortium, and its work on BAPI was merged into the BioAPI specification. See BioAPI.

A set of documented, server-side interfaces to one or more R/3 processes, from SAP. BAPI packages multiple internal functions to enable programmatic access to such higher-order tasks as checking customer numbers, providing product descriptions, selecting products, creating quotations or creating orders.

Standard R/3 interface that enables you to integrate third-party software into the R/3 System. Business Application Programming Interfaces (BAPIs) are defined in the Business Object Repository (BOR) as methods applied to SAP business objects, in order to perform specific business tasks. BAPIs are implemented and stored in the R/3 system as RFC-enabled function modules in the Function Builder of the ABAP Workbench.