the402 endpoint detail

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compliancepulse.theaslangroupllc.com validate vat

https://compliancepulse.theaslangroupllc.com/api/validate/vat

answers 402, partial

Is this EU VAT number valid? Live VIES check against the European Commission's official VAT Information Exchange System — validate a European VAT id, verify a business tax id before invoicing, confirm B2B reverse-charge / zero-rating eligibility. Returns the registered trader name and address where the member state discloses them. Deterministic: no LLM. Distinguishes a genuinely invalid number fro

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse. It advertises 13 ways to pay and only 12 of them are usable.
Price
$0.01
Network
base
Pay to
0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
232 ms
Payment options
12 usable of 13
Last checked
2026-08-15T14:33:27.747Z (1d ago)
Category
ai-inference

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fcompliancepulse.theaslangroupllc.com%2Fapi%2Fvalidate%2Fvat"