Prolog+CG is a Java implementation of Prolog with extensions implementing a subset of the Conceptual Graph (CG) theory of John Sowa. CGs are first-class datatypes on a par with terms. Object oriented extensions are also included.
A framework for building, deploying and managing well-described REST-ful Web services, including REST-ful Web Services realizations for RSS, XML Topic Maps, Structured Arguments, and Workflow.
GNU Prolog API for distributed multithreading programming built on top of the PM2 environment. The thread management is made with a user-level multithreading library and communication is made on top of Madeleine, the communication subsystem of PM2.
Multiplatform (MUltiple Language / Target Integration PLATform FOR Modules) implements a unified integration platform for multiple modules written in multiple languages (C, C++, Prolog, Java) and multiple target platforms (GNU/Linux, Solaris, Windows).