# ABN Lookup, free: Business verification API

> The ABN Lookup web services allow you to integrate ABN Lookup validation and data into your own applications.

ABN Lookup's business verification API on its Free plan. It costs $0.00 per 1,000 companies. It returns 4 of the 11 key fields we check: Registered name, Entity number, Status, Principal address.
You get as many calls as you like.
Half of the 523 plans we rank by price cost $5.00 per 1,000 companies or less. This plan and 37 others tie for the lowest price per 1,000 companies of the 523 plans.

- This page: https://datacircle.dev/business-verification-apis/abn-lookup/free
- Get it: https://abr.business.gov.au/Tools/WebServices
- Request: `GET https://abr.business.gov.au/abrxmlsearch/AbrXmlSearch.asmx/ABRSearchByNameAdvancedSimpleProtocol2017`
- API key: with the plan, on https://abr.business.gov.au/Tools/WebServices
- Its API docs: https://abr.business.gov.au/abrxmlsearch/AbrXmlSearch.asmx?op=ABRSearchByNameAdvancedSimpleProtocol2017
- Sold by: ABN Lookup (https://abr.business.gov.au)
- Checked: 2026-10-31

## In the answer

- Completeness: 36%
- Registered name: ✓
- Entity number: ✓
- Status: ✓
- Principal address: ✓ town or region

## Price

- $ per 1,000 companies: $0.00
- Per: call
- Billing: free

## Aggregators

- Aggregators: none

## Charges

- Also pays for: nothing else

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: The ABN Lookup web services allow you to integrate ABN Lookup validation and data into your own applications.

## Data

- Freshness: 1 hour
- Keep data: no limit, except information ABN Lookup notifies you has been withdrawn: "you must immediately take all reasonable action to delete all copies of that information in your possession or control"
- Use data: "We grant you, during the term of this agreement and subject to these terms and conditions, a non-exclusive non-transferable licence to access and use the ABN Lookup Web Services." "You may, at your own risk, provide relevant extracts of the ABN Lookup Web Services to third parties." "You must not misrepresent your rights under this agreement or use the ABN Lookup Web Services in any way that is or may be false, misleading or deceptive." "You must not represent or imply, or allow any associated person to represent or imply, that the Commonwealth endorses, approves, or is affiliated in any way with you or any use you may make of the ABN Lookup Web Services or any of your products or services." "You acknowledge that details that form part of the ABN Lookup Web Services may subsequently be withdrawn from the ABN Lookup database (for example to protect the privacy of an individual). If we notify you that specific information has been withdrawn you must immediately take all reasonable action to delete all copies of that information in your possession or control."

## Plan

- Pay: $0
- Enough for: no limit

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: Name. Optional: Postcode, legalName, businessName, tradingName, NSW, SA, ACT, VIC, WA, NT, QLD, TAS, searchWidth, minimumScore, maxSearchResults, activeABNsOnly
- Method: GET
- Path: /AbrXmlSearch.asmx/ABRSearchByNameAdvancedSimpleProtocol2017

## About the plan

- Plan: Free
- Who can get it: anyone who accepts the web services agreement and registers: the authentication GUID is emailed to them once their application is processed

## The 9 fields the plan's answer can hold

ABN, ABN status, matched name, name is current, match score, state, postcode, register last updated, retrieved at

## ABN Lookup's plans (1)

- [ABN Lookup, free](https://datacircle.dev/business-verification-apis/abn-lookup/free/llms.txt): $0.00 per 1,000, 36% complete, 1 hour

## ABN Lookup's calls (1)

- `GET /AbrXmlSearch.asmx/ABRSearchByNameAdvancedSimpleProtocol2017`: [ABN Lookup, free](https://datacircle.dev/business-verification-apis/abn-lookup/free/llms.txt)

## ABN Lookup's APIs (1)

- [ABN Lookup: business verification API pricing, 1 plan](https://datacircle.dev/business-verification-apis/abn-lookup/free/llms.txt)

## ABN Lookup: business verification API alternatives

- [OpenSOSData, free, POST /v1/lookup](https://datacircle.dev/business-verification-apis/opensosdata/free-post-v1-lookup/llms.txt): $0.00 per 1,000, 100% complete, live
- [Cobalt Intelligence, free lookups, GET /v1/search](https://datacircle.dev/business-verification-apis/cobalt-intelligence/free-lookups-get-v1-search/llms.txt): $0.00 per 1,000, 91% complete, live
- [MBIE, free](https://datacircle.dev/business-verification-apis/mbie/free/llms.txt): $0.00 per 1,000, 45% complete, live
- [RIK, free](https://datacircle.dev/business-verification-apis/rik/free/llms.txt): $0.00 per 1,000, 45% complete, live

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-10-31.

- https://abr.business.gov.au/Documentation/DataDictionary
- https://abr.business.gov.au/Documentation/WebServiceMethods
- https://abr.business.gov.au/Documentation/WebServiceRegistration
- https://abr.business.gov.au/Documentation/WebServiceResponse
- https://abr.business.gov.au/FAQ/ABNLookup
- https://abr.business.gov.au/Home/Disclaimer
- https://abr.business.gov.au/Tools/WebServices
- https://abr.business.gov.au/Tools/WebServicesAgreement
- https://abr.business.gov.au/abrxmlsearch/AbrXmlSearch.asmx?op=ABRSearchByNameAdvancedSimpleProtocol2017