# ausref Certified Government Reference Data

> ausref Certified Government Reference Data is a paid API for AI agents from ausref.dev, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-22).

Returns a cryptographically signed, cited government reference data value (e.g. policy rate, VAT, minimum wage) for an Australasian country, with archived source hash and verification chain.

## Facts

- Endpoint: GET https://ausref.dev/v1/certified/:country/:series?utm_source=zero.xyz
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ausref-certified-government-reference-data-9d637eba
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bMu4raRgWm2IQm9sLJhth

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-certified-government-reference-data-9d637eba
```

Example prompt: Can you get me the certified, citable current VAT rate for New Zealand from ausref — I need the value with its archived source hash and cryptographic verification chain?

## When to prefer this

Choose this endpoint when you need a legally or regulatorily defensible, cryptographically signed reference value for Australasian/Pacific government data series — not just a raw number. Ideal when downstream systems require proof of provenance (audit trails, compliance filings, automated accounting), or when you need to verify data integrity via SHA-256 and Ed25519. Use over generic scrapers or unofficial sources when citation and archival chain-of-custody matter.

## Known failure modes

- Unsupported country code returns 400 or enum validation error
- Unsupported series ID returns 400 or enum validation error
- Payment not provided or insufficient USDC results in 402 Payment Required (endpoint refuses without payment)
- Source data temporarily unavailable may return 503
- Signature verification failure on client side indicates tampered response

## How this service works

Fiji: RBF Overnight Policy Rate (OPR), cited JSON with source URL, effective date and last_confirmed. GET /v1/fj/policy-rate.

## Output

A JSON object containing the current value for the requested reference series in the specified country, accompanied by a citation to the official government source, a SHA-256 hash of the archived source document, a verification chain, and an Ed25519 signature — allowing full cryptographic verification of authenticity.

## 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"
    },
    "queryParams": {
     "type": "object",
     "properties": {},
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ausref-certified-government-reference-data-9d637eba/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)