Eve REST API queries returns all details about annotation. Formulate/document queries in order to get only desired structure - annotation type and motivation - Add `projection={"motivation":1,"type":1}` as URL query paremeter to get only these elements in result itemListElement E.g.: https://b2note.bsc.es/api/annotations?projection={%22type%22:1,%22motivation%22:1} - target.source and id - Projection to 'id' and embedded structure seems not working, null structure is returned projection={"id":1,"target.source":1}, e.g. https://b2note.bsc.es/api/annotations?projection={%22target.source%22:1,%22id%22:1}