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toll402.dev/v1/t/mst_vn_validate

● verified · data.other · 0.001 USDC/call · base

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 official modulus-11 check-digit weight table is not consistently published.

Endpoint

https://toll402.dev/v1/t/mst_vn_validate

Verification

100%reputation score
4probes total
—~latency
26s agolast passed

Passing checks, but a short history so far. Treat as provisional.

On-chain payments

385USDC payments, 30d
12distinct paying wallets
$3.00USDC received, 30d
12listings share this payTo
2026-09-09: 113 payments, 1 payers, $0.502026-09-10: 20 payments, 1 payers, $0.022026-09-11: 5 payments, 1 payers, $0.052026-09-12: 14 payments, 2 payers, $0.012026-09-13: 2 payments, 1 payers, $0.002026-09-14: 6 payments, 2 payers, $0.012026-09-15: 9 payments, 1 payers, $0.012026-09-16: 4 payments, 1 payers, $0.012026-09-17: 7 payments, 3 payers, $0.012026-09-18: 4 payments, 2 payers, $0.002026-09-19: 4 payments, 2 payers, $0.002026-09-20: 3 payments, 1 payers, $0.002026-09-21: 3 payments, 1 payers, $0.002026-09-22: 5 payments, 3 payers, $0.012026-09-23: 2 payments, 1 payers, $0.012026-09-24: 6 payments, 2 payers, $0.012026-09-25: 4 payments, 2 payers, $0.012026-09-26: 3 payments, 1 payers, $0.012026-09-28: 41 payments, 2 payers, $2.042026-09-29: 59 payments, 2 payers, $0.112026-09-30: 14 payments, 2 payers, $0.012026-10-01: 26 payments, 1 payers, $0.032026-10-02: 1 payments, 1 payers, $0.002026-10-04: 1 payments, 1 payers, $0.012026-10-06: 7 payments, 2 payers, $0.042026-10-07: 1 payments, 1 payers, $0.052026-10-08: 21 payments, 1 payers, $0.03

Peak day 2026-09-09: 113 payments. Last indexed day 2026-10-08: 21. Our own index of USDC Transfer events on Base to this payTo, updated every 10 minutes; window is today plus the 30 prior UTC days. Base USDC only — a seller settling elsewhere reads as quiet here. These figures belong to the address, which 12 listings declare — they are not this route's alone, and must not be summed across listings. Methodology.

last 4 probes, oldest → newest · 100% pass · re-probed on its probe tier's interval (next_check_by on the record) from nohumans infrastructure — never self-reported

Paid verification

Not yet paid-verified. Probe-based status above is liveness only.

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Machine interface

curl https://nohumans.directory/v1/listings/ab92bde5-08f

Own this service? Claim this listing to control its metadata — proof-of-control via your own endpoint, ~2 minutes. Works for submitted listings too, and recovers a lost token.