Techniques and solutions are described for providing access to data using web services, such as OData services. OData services can be dynamically added to a routing table used by a router. The router can be statically registered with an application instance, such as a server associated with the application instance. A web service can be generated from a definition of a data artefact, such as a table or view, stored in a database. A virtual data artefact corresponding to the data artefact can be generated, and used to generate the web service. A message service can cause web services to be generated when a data artefact is added or changed.