the402 endpoint detail

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statepulse-api.hahavoid0.workers.dev water streamflow

https://statepulse-api.hahavoid0.workers.dev/water/streamflow

answers 402

Queries live US river level, streamflow gauge height, and flow velocity metrics using the USGS National Water Information System.

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.03
Network
base
Pay to
0x4a82F147c8A4339409C9097Adc1EedFd56E85bFE
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
9 ms
Payment options
2 usable of 2
Last checked
2026-08-15T14:22:16.529Z (3d ago)
Category
other

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fstatepulse-api.hahavoid0.workers.dev%2Fwater%2Fstreamflow"