ToolVet
77trust / 100

Stack Batch

by Tech Detect in Other

x402 APIPassing, checked 33 min ago

Fixed 0.045 USDC for 11 to 25 hosts. At least half must succeed for settlement; otherwise HTTP 502 with charged=false. Complete results for successful targets and explicit per-target failures. No rendering.

POST
https://stack.halowerk.com/stack/batch/25
Price
$0.045
per call in USDC
Uptime
100%
last 30 days
Response time
431 ms
618 ms slowest 5%
Last check
Passed
33 min ago, next any minute now

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

Status and outage history · Atom feed · Watch with other listings

How to call it

POST https://stack.halowerk.com/stack/batch/25

Each call costs $0.045 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://stack.halowerk.com/stack/batch/25
content-type: application/json

{
  "urls": [
    "https://example.com/",
    "https://example.org/",
    "https://example.net/",
    "https://www.duda.co/",
    "https://www.weebly.com/",
    "https://johnsmith-demo.carrd.co/",
    "https://www.harmozalea.com/",
    "https://www.webador.com/",
    "https://v0.app/",
    "https://www.yext.com/",
    "https://www.framer.com/"
  ]
}

Parameters

ParameterTypeRequiredDescription
refreshbooleanNo
urlsarray of string (uri)Yes

Example response

The listing has no example response.

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.045.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://stack.halowerk.com/stack/batch/25' \
  -H 'content-type: application/json' \
  --data-raw '{"urls":["https://example.com/","https://example.org/","https://example.net/","https://www.duda.co/","https://www.weebly.com/","https://johnsmith-demo.carrd.co/","https://www.harmozalea.com/","https://www.webador.com/","https://v0.app/","https://www.yext.com/","https://www.framer.com/"]}'

# 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://stack.halowerk.com/stack/batch/25' \
  -H 'content-type: application/json' \
  --data-raw '{"urls":["https://example.com/","https://example.org/","https://example.net/","https://www.duda.co/","https://www.weebly.com/","https://johnsmith-demo.carrd.co/","https://www.harmozalea.com/","https://www.webador.com/","https://v0.app/","https://www.yext.com/","https://www.framer.com/"]}' \
  | 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 $0.045 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.045" });
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 $0.045 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fstack.halowerk.com%2Fstack%2Fbatch%2F25&method=POST
const res = await pay("https://stack.halowerk.com/stack/batch/25", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "urls": [
      "https://example.com/",
      "https://example.org/",
      "https://example.net/",
      "https://www.duda.co/",
      "https://www.weebly.com/",
      "https://johnsmith-demo.carrd.co/",
      "https://www.harmozalea.com/",
      "https://www.webador.com/",
      "https://v0.app/",
      "https://www.yext.com/",
      "https://www.framer.com/"
    ]
  }),
});
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 $0.045 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.045"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://stack.halowerk.com/stack/batch/25",
        json={
            "urls": [
                "https://example.com/",
                "https://example.org/",
                "https://example.net/",
                "https://www.duda.co/",
                "https://www.weebly.com/",
                "https://johnsmith-demo.carrd.co/",
                "https://www.harmozalea.com/",
                "https://www.webador.com/",
                "https://v0.app/",
                "https://www.yext.com/",
                "https://www.framer.com/",
            ],
        },
    )
    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
33 min agoPassed402152 ms$0.045
5 h agoPassed402547 ms$0.045
8 h agoPassed402295 ms$0.045
11 h agoPassed402256 ms$0.045
14 h agoPassed402277 ms$0.045
Show 10 older checks
18 h agoPassed402369 ms$0.045
21 h agoPassed402193 ms$0.045
24 h agoPassed402435 ms$0.045
27 h agoPassed402626 ms$0.045
31 h agoPassed402361 ms$0.045
36 h agoPassed402472 ms$0.045
41 h agoPassed402373 ms$0.045
47 h agoPassed402381 ms$0.045
2 days agoPassed402324 ms$0.045
2 days agoPassed402301 ms$0.045