# ABR JSON web service

**Publisher:** ABR / ATO (Federal gov)  
**Jurisdiction:** AU  
**Status:** Live · checked 2026-08-23  
**Agent-ready:** no  
**Canonical:** https://ausdatacatalog.com/apis/abr-json-web-service

## Connect recipe

| key | value |
| --- | --- |
| base | https://abr.business.gov.au/json/AbnDetails.aspx |
| docs | https://abr.business.gov.au/json/ |
| protocol | Web page |
| auth | Open — free GUID registration |
| licence | unknown · commercial use unclear |
| try | curl -sI 'https://abr.business.gov.au/json/AbnDetails.aspx' |
| checked | 2026-08-23 · HTTP 200 |

## Curator notes

Endpoint live (JSONP). Requires a registered GUID. Sample without GUID returns 'GUID entered is not recognised'.