The complete and official description of the subset is accessible via the apcentral website.

This unofficial and annotated documentation is provided in a format closer to standard Java API documentation as generated by javadoc.

See the package ap, ap.lang and many of the classes in java.ap.util (not the Map classes) which are complete. For other packages and classes not all documentation has been written, although javadoc-generated documentation is provided for skeletal/stub methods in the APCS subset.