XML Army Knife is a project by Leigh Dodds.
The project is intended to experiment with URL pipelining, data storage, query and aggregation through RESTful web services.
XML Army Knife will offer a suite of services useful to anyone processing or manipulating HTML, XML and RDF data on the web. The services will range from online processing of XSLT and XQuery, through to processing of Semantic Web data using SPARQL, and even simple reasoning using RDF and OWL.
Semantic Web data storage will be another key feature of the XML Army Knife tool set. The ability to sign-up and create arbitrary collections of data will allow web developers to create novel applications by mixing data from many different services.