the402 endpoint detail

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open-pay.jp paid hello

https://open-pay.jp/api/paid/hello

answers 402

OpenPay demo paid endpoint: returns hello + timestamp.

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.001
Network
base
Pay to
0x52d4901142e2B5680027da5EB47C86CB02a3cA81
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
273 ms
Payment options
1 usable of 1
Last checked
2026-09-06T01:23:35.981Z (21d ago)
Category
other

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fopen-pay.jp%2Fapi%2Fpaid%2Fhello"