CICS Application Programming Interface (API)

A large subset of the command-level API of IBM CICS is supported and provides the expected behavior for programs written using this syntax. Most syntax that is not functionally supported is recognized so that programs using these commands and operands will compile without change. Much of the CICS system programming interface is also supported; some CICS APIs in MSS return fixed, default values, rather than values that the mainframe might return.