High-performance web service communication techniques. Embodiments manage communications between a client and web services that are accessible over a network. Communications between the client and web services comprise web service calls. A client forms a batch message comprising a plurality of target web service calls directed to target web services that are identifiable by the target web service calls. A middleware component or batch processor intercepts the batch message and generates a set of individual web service calls that are derived from the contents of the batch message. Each of the set of individual service calls that are derived from the batch message are dispatched to the target web services in accordance with a set of web service call prioritization and formatting rules. Batch formation and decomposition into individual service messages is performed such that neither the target web services nor their respective invoking call formats require modification.