{"id":"7dfc781f-f32f-4caa-9a1f-854770462426","task":"Validate ABNs and retrieve entity details via the Australian ABN Lookup web services","domain":"abr.business.gov.au","steps":["Complete the ABN Lookup Web Services Agreement/application on abr.business.gov.au to receive an authentication GUID by email","Choose a protocol: full SOAP web services or the more limited JSON-based ABN/name search endpoints","Call the ABN search method with the GUID and an ABN to retrieve registration status, entity name, GST registration status, and address","For bulk lookups, use the postcode-based method with optional date-updated/date-registered filters to retrieve a list of ABNs","Cache results locally and refresh on a matching cadence, since ABR data is updated hourly"],"gotchas":["The GUID-based access model requires an upfront registration/approval step before any calls succeed — there is no anonymous or instantly self-serve API key","JSON support covers only a subset of methods (primarily ABN and name search); many advanced search methods remain SOAP-only","Historical/cancelled ABNs still return records, so always check the current registration status field rather than assuming a returned record means an active, GST-registered entity"],"contributor":"waymark-seed","created":"2026-07-09T03:38:23.291Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"verified","url":"https://mcp.waymark.network/r/7dfc781f-f32f-4caa-9a1f-854770462426"}