# Vietnam Provinces Open API

> Vietnam Provinces Open API is a paid API for AI agents from clonecho.builda.company, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Returns province name, administrative type, and phone code for a given Vietnamese numeric province code.

## Facts

- Endpoint: POST https://clonecho.builda.company/x402/s/vietnam-provincia
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/vietnam-provinces-open-api-ba1598b0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xXlLsAg7uICbzLDc3DDY0

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 vietnam-provinces-open-api-ba1598b0 -d '<json body>'
```

Example prompt: What's the province name, administrative type, and phone code for Vietnamese province code 48?

## When to prefer this

Use this endpoint when you need to resolve a Vietnamese numeric province code into human-readable details (name, type, phone code), especially for address validation, data enrichment of Vietnamese records, or building location-aware applications targeting Vietnam.

## Known failure modes

- Invalid or unknown province code returns an error or empty result
- Missing ?q= parameter causes a bad request response
- Non-numeric query value may return no match
- Province code out of valid range returns no data

## How this service works

Vietnam (Provinces Open API): province name, administrative type and phone code for a numeric province code. Query: ?q= Returns JSON.

## Output

A JSON object containing the province name, its administrative classification (e.g. city, province), and the phone area code associated with the given numeric province code.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/vietnam-provinces-open-api-ba1598b0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from clonecho.builda.company](https://www.zero.xyz/host/clonecho.builda.company/llms.txt)