ToolVet
72trust / 100

Browser Session

by AgentUtility.ai in Search & web

x402 APIPassing, checked just now

Loads a public URL in a real headless browser with JavaScript executed, then returns the rendered HTML and page title, or a base64 screenshot. For pages a plain HTTP fetch can't read because the content is built client-side. Use it as a headless browser render API, JavaScript page renderer, dynamic page renderer, screenshot API, or to scrape JS-heavy sites and get the post-JavaScript DOM.

POST
https://x402.agentutility.ai/browser-session
Price
$0.03
per call in USDC
Uptime
79.2%
last 30 days
Response time
202 ms
7.7 s slowest 5%
Last check
Passed
just now, next in 30 min

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

Status and outage history · Atom feed

How to call it

POST https://x402.agentutility.ai/browser-session

Each call costs $0.03 in USDC on Base, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

POST https://x402.agentutility.ai/browser-session
content-type: application/json

{
  "url": "https://example.com",
  "wait_ms": 0
}

Parameters

ParameterTypeRequiredDescription
block_adsbooleanNoAccepted for compatibility; filtering behavior is selected by the browser runtime.
full_pagebooleanNoAccepted for compatibility when screenshot=true; capture dimensions are selected by the browser runtime.
screenshotbooleanNoReturn a base64 PNG screenshot instead of HTML. Default false.
urlstringYesAbsolute public http(s) URL to render. Max 4096 characters; private-network targets are rejected.
wait_msnumberNoExtra milliseconds to wait after load for late JS (0-10000). Default 0.

Example response

The provider's example. We can't check it without paying.

{
  "bytes": 1256,
  "final_url": "https://example.com/",
  "html": "<html>…rendered DOM…</html>",
  "source": "managed headless browser",
  "title": "Example Domain",
  "truncated": false,
  "url": "https://example.com"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.03.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://x402.agentutility.ai/browser-session' \
  -H 'content-type: application/json' \
  --data-raw '{"url":"https://example.com","wait_ms":0}'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - -X POST 'https://x402.agentutility.ai/browser-session' \
  -H 'content-type: application/json' \
  --data-raw '{"url":"https://example.com","wait_ms":0}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.03 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.03" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.03 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fx402.agentutility.ai%2Fbrowser-session&method=POST
const res = await pay("https://x402.agentutility.ai/browser-session", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "url": "https://example.com",
    "wait_ms": 0
  }),
});
console.log(res.status, await res.text());
Python: pay and call
# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.03 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.03"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://x402.agentutility.ai/browser-session",
        json={
            "url": "https://example.com",
            "wait_ms": 0,
        },
    )
    print(res.status_code, res.text)

Security scan

No findings

We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
just nowPassed4027.6 s$0.03
4 h agoPassed4022.8 s$0.03
9 h agoPassed402101 ms$0.03
13 h agoPassed4023.8 s$0.03
17 h agoTimed out---
Show 10 older checks
21 h agoPassed4027.8 s$0.03
25 h agoPassed402131 ms$0.03
29 h agoPassed402104 ms$0.03
32 h agoPassed402121 ms$0.03
36 h agoPassed4027.7 s$0.03
40 h agoTimed out---
44 h agoPassed4025.7 s$0.03
47 h agoPassed402136 ms$0.03
2 days agoPassed402712 ms$0.03
2 days agoPassed402115 ms$0.03