the402 endpoint detail

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zoll.halowerk.com v1 eori-validate

https://zoll.halowerk.com/v1/eori-validate

answers 402

Validates EORI syntax and country-prefix consistency without asserting registration status. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age. This is neither legal advice nor customs advice.

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.004
Network
base
Pay to
0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
545 ms
Payment options
1 usable of 1
Last checked
2026-09-06T01:23:16.650Z (23d ago)
Category
other

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fzoll.halowerk.com%2Fv1%2Feori-validate"