# ausref Historical Government Reference Data

> ausref Historical Government Reference Data is a paid API for AI agents from ausref.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-13).

Returns the full historical time series for a specific Australasian government reference data series (e.g. policy rate, VAT, minimum wage) for Australia or New Zealand

## Facts

- Endpoint: GET https://ausref.dev/v1/:country/:series/history
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ausref-historical-government-reference-data-778f3f1e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Zmd1dk2j88ZARN1pgClNF

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability ausref-historical-government-reference-data-778f3f1e
```

Example prompt: Can you pull up the full historical series for Australia's policy rate from ausref — I want to see how it's changed over time?

## When to prefer this

Use this endpoint when you need the full historical record of a government reference data series for Australia or New Zealand — not just the current value. Choose this over the snapshot endpoint when you need trend analysis, time-series comparison, or auditing how a rate has changed over multiple periods. Prefer this over general web search when you need structured, machine-readable, sourced data with effective dates.

## Known failure modes

- Invalid country code (not 'au' or 'nz') returns 400 or 422 validation error
- Invalid series identifier (not one of the seven allowed enums) returns 400 or 422 validation error
- Stale flag set to true indicates data may be outdated but is still returned
- Payment not provided or insufficient USDC returns 402 Payment Required
- Service unavailable returns 503

## How this service works

Government reference data series

## Output

Returns a structured object containing the historical time series for the requested government reference data series, including all past values with their effective-from dates, data source name and URL, unit of measurement, a staleness flag indicating if the data is past its expected update cycle, and optional statutory components or notes where applicable.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object",
     "required": [
      "country",
      "series"
     ],
     "properties": {
      "series": {
       "enum": [
        "policy-rate",
        "statutory-interest",
        "vat",
        "vat-registration-threshold",
        "minimum-wage",
        "public-holidays",
        "cpi",
        "corporate-tax",
        "withholding-tax",
        "income-tax",
        "social-contributions"
       ],
       "type": "string",
       "description": "Reference series id"
      },
      "country": {
       "enum": [
        "au",
        "fj",
        "nz",
        "pg",
        "sb",
        "to",
        "vu",
        "ws"
       ],
       "type": "string",
       "description": "ISO country code"
      }
     }
    },
    "queryParams": {
     "type": "object",
     "properties": {},
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ausref-historical-government-reference-data-778f3f1e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from ausref.dev](https://www.zero.xyz/host/ausref.dev/llms.txt)