abr.business.abn_lookup
Resolve an Australian Business Number (ABN) to full entity details using the official Australian Business Register (ABR). Returns entity name, entity type (company, sole trader, partnership, government entity, etc.), ABN status (Active/Cancelled), GST registration date, registered address state a...
This record as markdown: /tools/io-github-whiteknightonhorse-apibase/abr.business.abn-lookup.md
What abr.business.abn_lookup does on Apibase
AI agents call abr.business.abn_lookup to retrieve information from Apibase without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
abn | string | Yes | Australian Business Number (ABN) — 11-digit numeric identifier, spaces optional (e.g. "33 051 775 556" or "33051775556") |
Parameters from the server's own tool schema.
Why abr.business.abn_lookup is rated Low
Tool queries public business register data with no side effects or modifications.
From the tool's definition Resolve ABN to entity details, returns name, type, status, address.
Attacks that exploit this kind of access
The rule that runs abr.business.abn_lookup safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Apibase, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For abr.business.abn_lookup, this is the rule to start with:
abr.business.abn_lookup is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Apibase, apply this rule, and every abr.business.abn_lookup call is checked against it from then on.
Questions about abr.business.abn_lookup
Resolve an Australian Business Number (ABN) to full entity details using the official Australian Business Register (ABR). Returns entity name, entity type (company, sole trader, partnership, government entity, etc.), ABN status (Active/Cancelled), GST registration date, registered address state and postcode, ACN (if a company), and all registered trading/business names. Covers 15M+ ABNs across all Australian states and territories. Data is live from the ATO-managed national register. Source: ABR, free registration, commercial use permitted. It is categorised as a Read tool in the Apibase MCP Server, which means it retrieves data without modifying state.
abr.business.abn_lookup accepts 1 parameter: abn. Required: abn. The full parameter table on this page comes from the server's own tool schema.
Register the Apibase MCP server in PolicyLayer and add a rule for abr.business.abn_lookup: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Apibase. Nothing to install.
abr.business.abn_lookup is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the abr.business.abn_lookup rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for abr.business.abn_lookup. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
abr.business.abn_lookup is provided by the Apibase MCP server (apibase-mcp-client). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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