One of the main goals of the semantic web is to create a universal medium for the exchange of data. In order to support research and development of web semantization tools, methods and algorithms the authors have designed and implemented the Trisolda infrastructure. It is built around a semantic repository which is supplemented by import, query and data processing interfaces. The Trisolda application server can be extended by plug-ins for advanced semantic analysis and processing. They propose the TriQ RDF query language; its compositionality and closeness make it useful for complex semantic querying.