$0.005
per call · USD Coin on Base
Returns hourly surface concentrations from the CAMS European air-quality ensemble for a point in the cached DACH and Central Europe area. Available pollutants are CO, NO2, NO, O3, PM2.5, PM10 and SO2. Values come from the nearest 0.1 degree model cell and are labelled as a regional forecast rather than a street-level sensor reading. The local cutout is refreshed independently of paid calls, so Copernicus processing latency is not passed to the caller.
Endpoint
POST https://karte.halowerk.com/v1/air-quality1
Calls / 30d
1
Unique payers / 30d
Aug 30
Last called
exact
Payment scheme
Call this service
import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";
const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);
const res = await fetchWithPay("https://karte.halowerk.com/v1/air-quality", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({
"latitude": 45,
"longitude": 5
}),
});
const data = await res.json();curl -X POST \
"https://karte.halowerk.com/v1/air-quality" \
-H "Content-Type: application/json" \
-d '{"latitude":45,"longitude":5}' \
-H "X-PAYMENT: <signed x402 payment>"Payment details
0x2880edfff13100677bf97a3cbdf3bc34771c4e5eUSD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913Is this your API?
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