WDB2TS (actually mod_wdb2ts) is an apache module that can be used to retrieve time series of meteorological data from a given point location in a WDB database. The request interface is built to be similar to a REST web service, and is versioned such that new functionality can be introduced without breaking existing applications. Data can be delivered in one of several formats, specified upon request.
WDB2TS is an open-source project licensed under GPL2 or (at your option) any later version.
WDB2TS is currently at version 0.1.6. It can be downloaded via the link on the sidebar.