The Repositório Científico de Acceso Aberto de Portugal (RCAAP) portal aims to collect, aggregate and index Open Access scientific contents from Portuguese institutional repositories. RCAAP constitutes a single entry point for searching, discovery and recall of thousands of scientific and scholarly publications, namely journal articles, conference papers, thesis and dissertations, distributed by several Portuguese repositories. In addition, through RCAAP users can also search the Brazilian scientific production through several repositories and journals aggregated by OASIS project.