The Electronic Authorised Representatives Register (REA) lets you provide the representation that citizens grant to third parties to act electronically on behalf of them in the General State Administration (AGE) and its associated or dependent public bodies.
Voluntary representative
NOTE: This access is only available to persons who have a valid authorisation in the Electronic Register of Authorisations to access on behalf of their issuer. If you are a pensioner, you must use the "Ciudadanos" [“Citizens”] option in the menu on the left to access your own data:
https://clasespasivas.gob.es/sitios/sedeclasespasivas/es-ES/pensionesPercibidas/Paginas/PensionesPercibidas.aspx