The URLs for the synchronous and asynchronous frontends are:
| Service | Front | URL |
- Employment Service of Catalonia (SOC)
- Department of Social Action and Citizenship (DASC) – consultation of the Degree of Disability of the Disabled Service (SAD)
- Statistical Institute of Catalonia – Historical Census Report
- Register of Legal Entities
- Catalan Tax Agency (ATC)
- CatSalut's Central Register of Insureds (RCA)
- Large Family Title (TFN)
- Single-Parent Family Title (TFM)
| Synchronous | https://serveis3.iop.aoc.cat/siri-proxy/services/Sincron |
| Asynchronous | https://serveis3.iop.aoc.cat/siri-proxy/services/Asyncron |
| Asynchronous-response | https://serveis3.iop.aoc.cat/siri-proxy/services/AsyncronResposta |