the402 endpoint detail

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k-data-x402-production.theblack1022.workers.dev fx usdkrw

https://k-data-x402-production.theblack1022.workers.dev/api/fx/usdkrw

payable

Current USD/KRW exchange rate (ECB reference via Frankfurter, fallback open.er-api.com).

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.005
Network
base
Pay to
0x519c79c7EB7566F7353a324472A5CE4f05330C81
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
425 ms
Payment options
1 usable of 1
Last checked
2026-08-10T09:14:10.830Z (4d ago)
Category
data

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fk-data-x402-production.theblack1022.workers.dev%2Fapi%2Ffx%2Fusdkrw"