# abs.economy.cpi

Retrieve Australia Consumer Price Index (CPI) data from the ABS CPI dataset. Returns the All Groups CPI as annual percentage change (year-on-year inflation), index numbers (base 2011–12 = 100), or period-on-period percentage change. Available nationally (weighted 8-city average) and for individual capital cities: Sydney, Melbourne, Brisbane, Adelaide, Perth, Hobart, Darwin, and Canberra. Monthly and quarterly frequency. Source: ABS Cat. 6401.0, CC BY 4.0.

Agent View of the PolicyLayer registry record for `abs.economy.cpi`. HTML page: https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/abs.economy.cpi

## Facts

- Tool: `abs.economy.cpi`
- Server: Apibase (`apibase-mcp-client`) — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase.md
- Install: `npx -y apibase-mcp-client`
- Homepage: https://github.com/whiteknightonhorse/APIbase
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server auth posture: open
- Server rate-limited: no
- Parameters: 4
- Recommended policy verdict: Allowed

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `last_n` | integer | no | Number of most-recent observations to return (1–60). Monthly = up to 5 years; quarterly = up to 15 years. Defaults to 12 (1 year of monthly data). |
| `region` | string | no | Geographic region. australia = weighted national average across all 8 capital cities, or specify an individual capital city. Defaults to australia. |
| `measure` | string | no | CPI measure type. annual_change = percentage change from same period previous year (monthly data only, most commonly used), index = CPI index number (base 2011– |
| `frequency` | string | no | Data frequency. monthly = released monthly (note: annual_change measure is monthly only), quarterly = released quarterly. Ignored when measure is annual_change |

Parameters from the server's own tool schema.

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "abs.economy.cpi",
    "arguments": {}
  }
}
```

## Why abs.economy.cpi is rated Low

Tool queries publicly available economic statistics without modifying data or triggering side effects.

From the tool's own definition: "Retrieve Australia Consumer Price Index data, returns inflation and index numbers."

## Use case

AI agents call abs.economy.cpi 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.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Apibase:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "abs.economy.cpi": {}
  }
}
```

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---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=io-github-whiteknightonhorse-apibase · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-whiteknightonhorse-apibase