User-agent parse · User Agent
$0.001
per call · USD Coin on Base
Heuristic user-agent string parser: browser, version, OS, device class, and bot detection.
Endpoint
POST https://agent402.tools/api/user-agent4
Calls / 30d
1
Unique payers / 30d
Aug 31
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://agent402.tools/api/user-agent", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({
"ua": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0 Safari/537.36"
}),
});
const data = await res.json();curl -X POST \
"https://agent402.tools/api/user-agent" \
-H "Content-Type: application/json" \
-d '{"ua":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0 Safari/537.36"}' \
-H "X-PAYMENT: <signed x402 payment>"Example response
{
"bot": false,
"browser": "Chrome",
"device": "desktop",
"os": "Windows",
"version": "125.0"
}Payment details
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