- Nueva documentación versión 1-1-2021
- Web service presentation (162 KB)
- Functional blocks (126 KB)
- Description of the web service (6,565 KB)
- Outlines
- Checks and errors document (1.48 MB)
- WSDL of web services
- Frequently asked technical questions
- Presentations
- External Test web portal
- Contact
Source: agenciatributaria.es