the402 endpoint detail

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iso.openverbs.com v1 language

https://iso.openverbs.com/v1/language

answers 402

Look up a language by its ISO 639-1 alpha-2 code, ISO 639-2 alpha-3 code (bibliographic or terminologic) or English name. Provide exactly one field.

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.002
Network
base
Pay to
0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
284 ms
Payment options
1 usable of 1
Last checked
2026-09-06T01:20:08.335Z (21d ago)
Category
other

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