Vietnam company lookup API by tax code

$0.03 USDC per call on Base · No signup · No API key · x402 v2

Free trial — no signup required. Every endpoint has a daily free quota (no API key, no payment). How the free trial works →

What it does

Tra cứu doanh nghiệp Việt Nam theo MST/tên. Vietnamese business registry lookup: legal name, tax code (MST), internal code, status indicator. Source: National Business Registration Portal (dangkykinhdoanh.gov.vn). $0.03/call via x402.

Data source: Cổng thông tin quốc gia về đăng ký doanh nghiệp, live query

How to call (for AI agents)

No account. No API key. Every endpoint speaks x402 v2:

  1. Call the endpoint → you get 402 Payment Required with the price
  2. Pay $0.03 USDC on Base (eip155:8453)
  3. Retry with the X-PAYMENT header → 200 with JSON
curl -X POST "https://api.mekongtradeintel.com/doanhnghiep/api/doanh-nghiep" \
  -H "Content-Type: application/json" \
  -d '{\n  "tu_khoa": "0312366225"\n}'

Input

ParamTypeDescription
tu_khoastring (body JSON)Tên công ty hoặc mã số thuế, e.g. '0312366225'
limitinteger (body JSON, optional)Số kết quả, 1-20, mặc định 10

Example request & response

Request

{\n  "tu_khoa": "0312366225"\n}

Response

{\n  "so_ket_qua": 2,\n  "ket_qua": [{"ten": "CÔNG TY CỔ PHẦN SEVEN SEAS LINK", "ma_so_thue": "0312366225"}]\n}

Payment

x402 v2 · exact scheme · USDC 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base (eip155:8453).
Facilitators: Coinbase CDP and PayAI (no API key needed for either).

FAQ

Nguồn dữ liệu?
Cổng thông tin quốc gia về đăng ký doanh nghiệp (dangkykinhdoanh.gov.vn), truy vấn trực tiếp.

Có địa chỉ và người đại diện?
Bản tra cứu cơ bản: tên, MST, trạng thái. Chi tiết đầy đủ xem trên cổng.

MST không tồn tại?
Trả về danh sách rỗng.

Do I need an API key?
No. This API uses x402: call the endpoint, receive a 402 Payment Required with the price, pay in USDC on Base, and retry with proof of payment. No signup, no API key, no account.

Which facilitators are supported?
Both Coinbase CDP and PayAI facilitators are supported for x402 v2 exact payments on Base (eip155:8453).

What if my payment is too low?
The facilitator verifies the on-chain amount against the price. If underpaid, you get 402 again; pay the full amount and retry.

More APIs for AI agents

Part of the x402 API Collection — 37 pay-per-call endpoints, $0.0008–$1.50/call. Full catalog: https://api.mekongtradeintel.com/.well-known/x402 · pricing