{"resource":"https://toll402.dev/v1/t/mst_vn_validate","service":"Toll402","areas":["other"],"answering":true,"http_status":402,"latency_ms":246,"price_usdc":0.001,"buyers_30d":3,"calls_30d":3,"description":"Offline structural validator for a Vietnamese Enterprise/Tax Code (Mã số thuế, MST). Strips spaces, checks the 10-digit head-office pattern or the 13-character branch pattern (10 digits + '-' + 3-digit sequence). Uses regex only since the o","id":"bfb7495d45fd","category":"Developer tools and utilities","accuracy":null,"tool_calls":null,"checked_day":"2026-10-11","page":"https://velliumandco.com/sellers/bfb7495d45fd"}