the402 endpoint detail

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natur.halowerk.com v1 noise-level

https://natur.halowerk.com/v1/noise-level

answers 402

Queries the Sensor.Community live area feed, keeps the newest noise reading per outdoor sensor within the requested radius, and returns nearest readings plus median, p10 and p90 LAeq. It never converts missing sensors into an estimated dB value. Community sensors are indicative rather than calibrated regulatory measurements; no day/night legal limit or property valuation is inferred.

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.006
Network
base
Pay to
0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
558 ms
Payment options
1 usable of 1
Last checked
2026-09-06T01:23:32.394Z (30d ago)
Category
ai-inference

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