A metadistribution of RDF.rb including a full set of parsing/serialization plugins.

The OpenBEL API provides a RESTful API over HTTP to manage BEL knowledge.

Yet another OWL documentor. YOWL is a command line utility that can read a number of RDFS/OWL files, called the repository, and generate a documentation website from it, with visualisations like Class Diagrams (as SVG), Individuals Diagrams and Import Diagrams.