# asiaref Certified Country/Series Lookup

> asiaref Certified Country/Series Lookup is a paid API for AI agents from asiaref.dev, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-24).

Returns a single cited government reference data point for a specified Asian country and data series (e.g. VAT rate, policy rate, CPI, minimum wage) with official source URL and last-confirmed date.

## Facts

- Endpoint: GET https://asiaref.dev/v1/certified/%7Bcountry%7D/%7Bseries%7D?utm_source=zero.xyz
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-24
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/asiaref-certified-country-series-lookup-c95f7dc7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_4j-pfaVOv5djU01OJsdop

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 asiaref-certified-country-series-lookup-c95f7dc7
```

Example prompt: What is the current VAT rate in Japan according to official government sources — I need the cited value with its source URL and last-confirmed date.

## When to prefer this

Use this endpoint when you need a single, authoritative, cited government data point for a specific Asian country and series — such as VAT, corporate tax, policy rate, CPI, minimum wage, or withholding tax — and need the official source URL and last-confirmed date for compliance or audit purposes. Prefer this over the country-brief endpoint when you only need one series for one country (lower cost at $0.003 vs $0.01 for a full country brief). Prefer over web search when you need a structured, machine-readable, cited answer rather than an unstructured page.

## Known failure modes

- Country not covered by asiaref (28 supported countries; unsupported countries are refused)
- Series not available for requested country
- Invalid country code or series identifier returns an error
- Payment failure via x402 or MPP results in 402 response
- Rate limit exceeded on free tier (50 calls/day)

## How this service works

Asian government reference data for 28 countries as cited JSON: central-bank policy rates, VAT/GST and VAT registration thresholds, CPI, corporate, personal and withholding tax, social contributions, minimum wages, statutory interest, official FX rates, filing deadlines and public holidays (coverage varies by country). Every value carries its official source URL and last-confirmed date. Single facts $0.003; country brief (every series for one country) $0.01; cross-country compare (one series, up to 10 countries) $0.02; tax-ID and VAT-number checks $0.003; computed answers (VAT, income tax, working days, minimum-wage check) $0.01-$0.02. Pay per call in USDC on Base via x402 or MPP, no signup, or by card with credit packs or monthly plans on one key valid across all 7 regional services. Free tier: GET /catalog, plus a free email key with 50 answer calls a day, commercial use allowed. Finished answers, one cited dossier per call (supported countries vary per job; others are refused free): cost this hire (wage-floor verdict, contributions, employer cost) $0.50; charge this sale (which VAT applies, net/VAT/gross) $0.50; charge this sale certified (plus a signed VAT-rate extract) $0.75; invoice due date and statutory late interest $0.40; country evidence pack (brief plus signed extracts) $0.25; hire compare $0.75 for 2 countries, $1.00 for 3-5; next filings (VAT, PAYE, corporate-tax due dates rolled for holidays) $0.35.

Free trial: 3 computed-answer calls per day per IP on POST /v1/answers/* with header X-Free-Trial: 1 (without it, the normal x402 402; once used up, the 402 carries free_trial_resets_at). MCP answer tools use the trial automatically when no api_key is passed. Every series of the evaluation country is free. Card credit (same per-call price as x402): /pricing.

## Output

A JSON object containing the requested government reference value for the specified Asian country and series, including the numeric or categorical data point, the official government source URL, and the last-confirmed date of the data. Coverage and available series vary by country.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/asiaref-certified-country-series-lookup-c95f7dc7/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from asiaref.dev](https://www.zero.xyz/host/asiaref.dev/llms.txt)