2026-07-03
Verify and monitor an Australian business in one API call
Say you onboard Australian businesses, as customers, suppliers, or borrowers. You need two things: to know a business is real and clear of red flags before you deal with it, and to know the moment that changes afterwards. AUO, the Australian business data API, does both from one call.
Resolve: one call, one verified record
Give the API an ABN and it returns a single canonical entity, joined from every free government register, with the source and date behind every field.
curl https://api.auo.com.au/v1/resolve \
-H "Authorization: Bearer auo_sk_test_your_key" \
-H "Content-Type: application/json" \
-d '{"abn": "46008583542"}'The response tells you the legal name, whether the ABN and GST are active, whether it is a company or a trust, the ACN for companies, any AFS or credit licence it holds, and whether it appears on the sanctions or banned-persons registers. You did not call four registers. You called one endpoint.
Watch: get told when it changes
Verifying once is not enough, because businesses change. Subscribe to an entity and the API sends your server a signed webhook the moment it is deregistered, its ABN is cancelled, it appears on a sanctions list, or an insolvency notice is filed.
curl https://api.auo.com.au/v1/watch \
-H "Authorization: Bearer auo_sk_live_your_key" \
-H "Content-Type: application/json" \
-d '{"events": ["deregistration", "sanctions_match"],
"webhook_url": "https://example.com/hooks/auo",
"entities": ["46008583542"]}'Each delivery is HMAC-signed and replay-safe. If you cannot receive webhooks, poll the changes endpoint instead. Nothing is lost.
Honest about the boundaries
It is a verification and monitoring layer, not a full KYB stack. It does not include directors, shareholders, or beneficial ownership, because that is not in the free public record. Screening is possible-match: a no-match is not a clearance. We say so plainly.
Try it free
The full API works against a sandbox at no cost. Integrate your whole flow, then flip to live data by upgrading.