The EPO web services are designed for automated queries, such as automated data retrieval (by robots) or access via third-party portals (e.g. software packages) etc. They offer similar sets of data as the European Publication Server, European Patent Register and Espacenet.
Open Patent Services (OPS) is a web service which provides access to the EPO's data via a standardised XML interface. It does this using RESTful architecture.Developers’ testing area
Updated weekly, the European Publication Server gives you free online access to all the European patent documents published by the EPO.