AUO API unifies 18 Australian business registries into a single REST endpoint

Verifying Australian businesses programmatically has long required juggling multiple government sources, including SOAP-based ABR services, ASIC's weekly CSV dumps, and separate DFAT sanctions lists. AUO is a new REST API that consolidates data from 18 free government registries — including ABR, ASIC, ACNC, ORIC, GLEIF, and DFAT — into a single resolve endpoint. Developers can query by ABN, ACN, or company name and receive a unified record with confidence scores, source attribution, and sanctions screening results. The API distinguishes between "not found" and error states, surfaces data conflicts rather than silently merging them, and avoids overstating clearance by labelling screening results as "possible match" or "no match" only. A webhook layer allows subscribers to receive alerts when an entity's status changes, such as a deregistration or new sanctions hit, eliminating the need for scheduled polling.