Click on "Deploy Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type @ followed by the MCP server name and your instructions, e.g., "@AU Business Identity Verify ABN 51 824 753 556 against the Australian Business Register."
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
Australian business identifier validation and live ABN registry verification for AI agents and applications.
Part of AU Agent Utilities.
AU Business Identity provides three MCP tools for working with Australian business identifiers:
Validate ABNs using official format and checksum rules
Verify ABNs live against the Australian Business Register
Validate ACNs using official format and checksum rules
Use validate_abn when you only need deterministic local validation.
Use verify_abn when you need to know whether an ABN can be found in the Australian Business Register and retrieve available registry information.
Related MCP server: AU-BizIntel MCP Server
validate_abnValidates the format and checksum of an Australian Business Number without performing a registry lookup.
Example:
51 824 753 556Returns structured information including:
Normalised ABN
Formatted ABN
Format validity
Checksum validity
Overall validation result
verify_abnVerifies an Australian Business Number against the Australian Business Register.
Example:
51 824 753 556Returns structured information that may include:
Normalised and formatted ABN
Checksum validity
Registry match status
Entity name
Entity type
ABN status
GST registration status
State and postcode
Business names when available
Registry update information
A checksum-valid ABN and a registry-verified ABN are not treated as the same thing.
validate_acnValidates the format and checksum of an Australian Company Number.
Example:
004 085 616Returns structured information including:
Normalised ACN
Formatted ACN
Format validity
Checksum validity
Overall validation result
Is 51 824 753 556 a valid ABN?Verify ABN 51 824 753 556 against the Australian Business Register.Is this ABN active and registered for GST?Validate ACN 004 085 616.Public remote MCP endpoint:
https://au-business-identity.auagentutilities.workers.dev/mcpNo API key is currently required for the public beta tools.
Validate an ABN:
{
"name": "validate_abn",
"arguments": {
"abn": "51 824 753 556"
}
}Verify an ABN against the Australian Business Register:
{
"name": "verify_abn",
"arguments": {
"abn": "51 824 753 556"
}
}Validate an ACN:
{
"name": "validate_acn",
"arguments": {
"acn": "004 085 616"
}
}Checksum validation is also available over HTTP:
/validate-abn?abn=51824753556/validate-acn?acn=004085616Live ABR verification is currently exposed through the MCP tool verify_abn.
Potential future additions include:
Business-name search
ABN and business-name matching
Expanded Australian entity verification
Additional business identity checks based on real usage demand
The service records operational usage metadata such as tool name, success status and registry outcome to help measure reliability and adoption.
ABN and ACN input values are not intentionally stored in application usage logs.
Install dependencies:
npm installRun tests:
npx vitest runGitHub:
https://github.com/creatorhub121/au-business-identityThis server cannot be deployed
Validate EU, UK, AU VAT numbers for AI agents. EU ViDA e-invoicing compliance.
Australian identifier validation, GST arithmetic, fuzzy name matching, OFAC sanctions screening.
Verify ANZ businesses against government registers. Surfaces cross-jurisdictional findings.
Checksum validation for AI agents: IBAN, ISBN, EAN/GTIN, UUID, ULID. Deterministic, no auth.
